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Alternate cryptocurrencies => Mining (Altcoins) => Topic started by: Captain Crypto Pants on July 06, 2018, 08:00:23 AM



Title: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on July 06, 2018, 08:00:23 AM
I have been running my Antminer Z9 mini overclocked at 700M for five days and it hasn't had any HW errors. Still running quiet and cool at 58 to63 degrees,  this seems to be a much better miner than my last Antminer. Averaging 15.3k sols, which is mining 1.5 Zencash a day on supernova.

After a week I am going to crank it up all the way to 750 M.

Anyone else running it at 750 without errors?


Title: Re: Antminer Z9 mini overclocked
Post by: mindtrip on July 10, 2018, 06:23:25 PM
I also running mine at 700 with no issues


Title: Re: Antminer Z9 mini overclocked
Post by: jstefanop on July 10, 2018, 07:43:32 PM
These don't have error reporting implemented  regardless of how high a frequency you set. You will start seeing a degradation in sol rate from what you *should* be getting at higher frequencies.


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on July 10, 2018, 07:57:40 PM
Been running on 750 with 0 HW errors since day 1, average hashrate is usually around 16.75k - 17k as reported by the pool. Some folks are reporting better hashrates at 725 for some reason, though I haven't tested that personally.


Title: Re: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on July 11, 2018, 08:41:20 AM
I've cranked it up to 750 and it hasn't had any HW errors. I did set the fan speed to 50% just to make sure that it stays cool. 50% is 3,480 rpms and that keeps it right at 56-59 degrees.

It's been averaging 16.4 KSol/s for 2 days. Which equals 1.6 Zencash a day. Pretty happy with this little guy.

Hope it stays this way, at least until September when the big brother Z9s start shipping.  :)


Title: Re: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on July 19, 2018, 05:06:38 AM
Update:

Still running errors free at 750M. Hashrate stays even but Zencash mined per day has dropped a little to 1.35 Zen a day. Probably due to new Z9s coming online. Getting closer to ROI.


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on July 19, 2018, 05:02:30 PM
Update:

Still running errors free at 750M. Hashrate stays even but Zencash mined per day has dropped a little to 1.35 Zen a day. Probably due to new Z9s coming online. Getting closer to ROI.

Which pool are you mining on? i'm only getting around 1.05/day zencash on Zhash.pro while cranked to 750.
Also I think there's supposed to be an upcoming reward decrease for ZEN soon if it hasn't happened already


Title: Re: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on July 20, 2018, 03:12:36 AM
Update:

Still running errors free at 750M. Hashrate stays even but Zencash mined per day has dropped a little to 1.35 Zen a day. Probably due to new Z9s coming online. Getting closer to ROI.

Which pool are you mining on? i'm only getting around 1.05/day zencash on Zhash.pro while cranked to 750.
Also I think there's supposed to be an upcoming reward decrease for ZEN soon if it hasn't happened already

Supernova pool



Title: Re: Antminer Z9 mini overclocked
Post by: jmigdlc99 on July 20, 2018, 04:52:46 AM
Update:

Still running errors free at 750M. Hashrate stays even but Zencash mined per day has dropped a little to 1.35 Zen a day. Probably due to new Z9s coming online. Getting closer to ROI.

It would be interesting and helpful to the community if one of these days you report to us if and when your Z9 ASIC dies. I would certainly find that useful information and reward you with some merit or some other way if possible.

Knowing the limits on these machines and why bitmain only shipped with lower default settings is a intriguing.


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on July 20, 2018, 04:10:59 PM
Update:

Still running errors free at 750M. Hashrate stays even but Zencash mined per day has dropped a little to 1.35 Zen a day. Probably due to new Z9s coming online. Getting closer to ROI.

It would be interesting and helpful to the community if one of these days you report to us if and when your Z9 ASIC dies. I would certainly find that useful information and reward you with some merit or some other way if possible.

Knowing the limits on these machines and why bitmain only shipped with lower default settings is a intriguing.
I'm fairly sure they underrated the mini's capability to not steal thunder from the big brother. One of the guys on this forum did a hardware/tech breakdown of the mini and suggested it likely has even more overclock potential than what Bitmain allows. I have a very strong suspicion that the non-mini is essentially just 2 mini's glued together with an increased stock clock speed. If true this means anyone expecting to get that same additional +60% OC will be disappointed


Title: Re: Antminer Z9 mini overclocked
Post by: hawkfish007 on July 21, 2018, 01:33:23 AM
Update:

Still running errors free at 750M. Hashrate stays even but Zencash mined per day has dropped a little to 1.35 Zen a day. Probably due to new Z9s coming online. Getting closer to ROI.

It would be interesting and helpful to the community if one of these days you report to us if and when your Z9 ASIC dies. I would certainly find that useful information and reward you with some merit or some other way if possible.

Knowing the limits on these machines and why bitmain only shipped with lower default settings is a intriguing.

1 of my Z9 suddenly died, it was running at 750 MHz for weeks. It is now not responding after power up, no LED activity or fan spins. Tried with different working bitmain psu with no luck.


Title: Re: Antminer Z9 mini overclocked
Post by: TGJ on July 21, 2018, 01:55:17 AM
Update:

Still running errors free at 750M. Hashrate stays even but Zencash mined per day has dropped a little to 1.35 Zen a day. Probably due to new Z9s coming online. Getting closer to ROI.

It would be interesting and helpful to the community if one of these days you report to us if and when your Z9 ASIC dies. I would certainly find that useful information and reward you with some merit or some other way if possible.

Knowing the limits on these machines and why bitmain only shipped with lower default settings is a intriguing.

1 of my Z9 suddenly died, it was running at 750 MHz for weeks. It is now not responding after power up, no LED activity or fan spins. Tried with different working bitmain psu with no luck.
What were the chip temps?


Title: Re: Antminer Z9 mini overclocked
Post by: hawkfish007 on July 21, 2018, 02:48:05 AM
Update:

Still running errors free at 750M. Hashrate stays even but Zencash mined per day has dropped a little to 1.35 Zen a day. Probably due to new Z9s coming online. Getting closer to ROI.

It would be interesting and helpful to the community if one of these days you report to us if and when your Z9 ASIC dies. I would certainly find that useful information and reward you with some merit or some other way if possible.

Knowing the limits on these machines and why bitmain only shipped with lower default settings is a intriguing.

1 of my Z9 suddenly died, it was running at 750 MHz for weeks. It is now not responding after power up, no LED activity or fan spins. Tried with different working bitmain psu with no luck.
What were the chip temps?

Anywhere from 68-79 C depending on the time of the day.


Title: Re: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on July 21, 2018, 04:07:52 AM
Update:

Still running errors free at 750M. Hashrate stays even but Zencash mined per day has dropped a little to 1.35 Zen a day. Probably due to new Z9s coming online. Getting closer to ROI.

It would be interesting and helpful to the community if one of these days you report to us if and when your Z9 ASIC dies. I would certainly find that useful information and reward you with some merit or some other way if possible.

Knowing the limits on these machines and why bitmain only shipped with lower default settings is a intriguing.

1 of my Z9 suddenly died, it was running at 750 MHz for weeks. It is now not responding after power up, no LED activity or fan spins. Tried with different working bitmain psu with no luck.
What were the chip temps?

Anywhere from 68-79 C depending on the time of the day.

To keep it cool I am running at 50% fan speed fixed in programming, the chip temperature is 57 to 60. After reading that yours was so high I am hoping mine will last..



Title: Re: Antminer Z9 mini overclocked
Post by: wh1ffer on July 21, 2018, 10:58:29 AM
Been on 750 since day 1 (june 25) no problems 60-70c


Title: Re: Antminer Z9 mini overclocked
Post by: h4lt on July 21, 2018, 01:13:06 PM
Also running at 750 since day 1 @ 60-70C with no issues. Averaging 16-17KSol/S


Title: Re: Antminer Z9 mini overclocked
Post by: wedgenix on July 21, 2018, 01:24:17 PM
I ran at 650 out of the box, bumped up to 750 a couple weeks ago.

I abused it about as much as I could with daytime ambient temps that hit over 50°C in the mining room and a worst chip temp of 86°C, with chip temps no cooler than 77°C on the coolest of recent mornings.  Average chip temps are 78°-80°C in an abusive environment and it's still chugging away.

The stupid high ambient temps I was experiencing are over now that I resolved exhaust heat issues, but I'm comfortable running these chips up to 80 all day long.
I suspect the guy that blew his up was also comfortable running at 80.

YMMV


Title: Re: Antminer Z9 mini overclocked
Post by: lunobird on July 21, 2018, 04:48:07 PM
This is a marathon not a Sprint. Especially in this bear market. No need to overclock it too high and risk getting 0 hash rate.

I had one time issue at 650 overclock at mid 70 temps. Would not hash or connect. kept going into jet engine mode. After a few hours it would hash again so I keep it at a conservative 625 overclock in 85 degree summer weather.


Title: Re: Antminer Z9 mini overclocked
Post by: hawkfish007 on July 21, 2018, 07:37:23 PM
I decided to test the mini 1 last time before sending it to Bitmain. I tested 1 hashboard at a time and and it turned out 1 of the board was causing the PSU to trip. After opening it up, found the burned hashboard. Mini is hashing fine with 2 good boards now. 3 other Z9s and 2 A9s in the same server case are running fine.

https://i.imgur.com/BeGUyKF.jpg?1

https://i.imgur.com/HqH2vGg.jpg?1

Server Case, it is vented on top with a 1500 CFM QC-ES-1500 fan.

https://i.imgur.com/mZ61Qgg.jpg


Title: Re: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on July 22, 2018, 07:22:52 AM
Hawkfish007 that is a nice setup!

 What do you think about running my fan @50% constantly to keep the temperature under 60 degrees? I see that everyone else seems to let them run much higher closer to 70.

My Antminer A3 always ran hot, and wouldn't run overclocked at all. It's temps were always above 73 degrees. Where my L3s ran much cooler.

What is a comfortable temperature when running overclocked?


Title: Re: Antminer Z9 mini overclocked
Post by: Warlockks on July 29, 2018, 12:44:47 AM
Looks to me like the power supply failed on that hashboard.  I would guess one of the FETs failed and took out the switcher.

You may be able to get it working again by removing the bad power supply chips, and running on just the remaining power supplies.


Title: Re: Antminer Z9 mini overclocked
Post by: hawkfish007 on July 29, 2018, 01:19:49 AM
Looks to me like the power supply failed on that hashboard.  I would guess one of the FETs failed and took out the switcher.

You may be able to get it working again by removing the bad power supply chips, and running on just the remaining power supplies.

I sent the board for repair, but Bitmain said that the board is not repairable. I am getting a replacement board for $200.


Title: Re: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on July 30, 2018, 12:44:23 AM
Looks to me like the power supply failed on that hashboard.  I would guess one of the FETs failed and took out the switcher.

You may be able to get it working again by removing the bad power supply chips, and running on just the remaining power supplies.

I sent the board for repair, but Bitmain said that the board is not repairable. I am getting a replacement board for $200.

Is that from Bitmain? I've never had to buy replacement parts, are they super high on shipping like for the antminers?

Also, it's been about 30 days of running this thing wide open and no issues


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 28, 2018, 10:31:39 AM
Hawkfish007 that is a nice setup!

 What do you think about running my fan @50% constantly to keep the temperature under 60 degrees? I see that everyone else seems to let them run much higher closer to 70.

My Antminer A3 always ran hot, and wouldn't run overclocked at all. It's temps were always above 73 degrees. Where my L3s ran much cooler.

What is a comfortable temperature when running overclocked?

Have any of you guys heard about the new August batch of Z9 mini, the overclocking feature being removed?.. I have a batch 1 Z9 mini on 750 freq... but how do i get my August batch to 750?..
Thanks


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on August 28, 2018, 03:43:44 PM
I get my z9 mini in a couple of days. I only have not the orginal Bitmain psu. Do I really need the psu of Bitmain or can I use my 1000 watt quit psu (6+8 pins) ?


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 28, 2018, 05:30:51 PM
I get my z9 mini in a couple of days. I only have not the orginal Bitmain psu. Do I really need the psu of Bitmain or can I use my 1000 watt quit psu (6+8 pins) ?
https://bitcointalk.org/index.php?topic=4404847.0;topicseen
Pick this thread up buddy we have been talking on this thread for 2 months now about pools and clocking the z9 mini


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on August 28, 2018, 08:00:31 PM
Hi,
New member!
Don't have a screencapture yet!

These are my findngs:

I voided my guarantee and removed the backplate (with small holes) completely !!!

Doing 750 MHz with original fan in auto-mode.
Doing an avarage of 16.28 KSol/s.
My ambient room temp about 23-26 Celsius depending sunny or not (+ summer).
My temp (PCB) 49-53 C and temp (Chip) 63-67 C.
Fan speed normaly between 3600 - 3720 rpm.

If anyone of you already voided your guarantee like me perhaps you could try doing what I have done and for everyone else confirm / dismiss my findings.


Just sharing own experiences !

(did just post this in thread about 2 fans on Z mini)


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on August 28, 2018, 10:00:59 PM
I have a question regarding the Z9 Mini - not sure if this is the right thread but it's the closest I could find.

I'm planning on running 3 Z9 mini's off of a standard 1600w bitmain apw++ power supply running off of a 240v circuit. I plan to overclock all 3 to 750m (consumes about 400-450w each so well within the apw++ limits).

My question is this:

The apw++ has 10 pcie connectors. I need 12 to run 3 z9 mini's. I'm planning on connecting 9 of them directly to the hashing boards of the 3 units and using 2 splitters to split the power of the last pcie connector into 3 - for the 3 control boards.

Splitter I'm planning to use (for reference):
https://www.amazon.ca/StarTech-com-PCIEXSPLIT6-6-Inch-Express-Splitter/dp/B004NNTVT6/ref=sr_1_14?ie=UTF8&qid=1535493571&sr=8-14&keywords=pcie+splitter (https://www.amazon.ca/StarTech-com-PCIEXSPLIT6-6-Inch-Express-Splitter/dp/B004NNTVT6/ref=sr_1_14?ie=UTF8&qid=1535493571&sr=8-14&keywords=pcie+splitter)

This is assuming that the control boards dont take up much power compared to the actual hash boards. Given that, I'm thinking it would be OK to run three control boards off the same pcie connector.

Am I correct in this assumption? Is it safe to do what I am planning to?

Any input much appreciated. Thanks.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 28, 2018, 10:11:31 PM
I have a question regarding the Z9 Mini - not sure if this is the right thread but it's the closest I could find.

I'm planning on running 3 Z9 mini's off of a standard 1600w bitmain apw++ power supply running off of a 240v circuit. I plan to overclock all 3 to 750m (consumes about 400-450w each so well within the apw++ limits).

My question is this:

The apw++ has 10 pcie connectors. I need 12 to run 3 z9 mini's. I'm planning on connecting 9 of them directly to the hashing boards of the 3 units and using 2 splitters to split the power of the last pcie connector into 3 - for the 3 control boards.

Splitter I'm planning to use (for reference):
https://www.amazon.ca/StarTech-com-PCIEXSPLIT6-6-Inch-Express-Splitter/dp/B004NNTVT6/ref=sr_1_14?ie=UTF8&qid=1535493571&sr=8-14&keywords=pcie+splitter (https://www.amazon.ca/StarTech-com-PCIEXSPLIT6-6-Inch-Express-Splitter/dp/B004NNTVT6/ref=sr_1_14?ie=UTF8&qid=1535493571&sr=8-14&keywords=pcie+splitter)

This is assuming that the control boards dont take up much power compared to the actual hash boards. Given that, I'm thinking it would be OK to run three control boards off the same pcie connector.

Am I correct in this assumption? Is it safe to do what I am planning to?

Any input much appreciated. Thanks.
I donnt think you will power 3 clocked z9's.. i have 2 z9's clocked on one PSW3++ Firstly i am getting 750 mhz 16.5/17 sols out of one z9 and i can only get 681mhz out of the other 14.7/15.2 sols if i push the second z9 higher i begins high and drops off to zero hash rate.. i am guessing power failure.. but 2 do run nicely off one Bitmain PSU
Pics on my twitter

 https://twitter.com/mrtraderman


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on August 28, 2018, 10:32:40 PM
Shoot! I was hoping to save on the price of an additional PSU. My miners arrive between 5-15 Sep so I'll try hooking them up and update this thread here then.

Maybe what seems theoretically all right is not possible practically for whatever reason.


Title: Re: Antminer Z9 mini overclocked
Post by: TheRealCashen on August 28, 2018, 10:54:13 PM
My 2 latest z9s will not do 750. faults


Title: Re: Antminer Z9 mini overclocked
Post by: not.you on August 28, 2018, 11:01:54 PM
My 2 latest z9s will not do 750. faults

Same.  My new one will do 712 though, so that's decent.  I get 15.5 out of this one.  My batch 1 unit does better.  I have the batch one at 756 and it's getting 16.4 ksol.


Title: Re: Antminer Z9 mini overclocked
Post by: Sebahl on August 28, 2018, 11:36:56 PM
Shoot! I was hoping to save on the price of an additional PSU. My miners arrive between 5-15 Sep so I'll try hooking them up and update this thread here then.

Maybe what seems theoretically all right is not possible practically for whatever reason.

You can power 3 as long as you don't overclock any of them.


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on August 28, 2018, 11:56:59 PM
Shoot! I was hoping to save on the price of an additional PSU. My miners arrive between 5-15 Sep so I'll try hooking them up and update this thread here then.

Maybe what seems theoretically all right is not possible practically for whatever reason.

You can power 3 as long as you don't overclock any of them.

But why? Overclocked each takes a max of 450w - that's a maximum of 1350w total. Some of my S9's running off the same type of supply consume up to 1450w. I'm curious as to what the difference is that's all.

Edit: It's to be noted here that I'm using a 240v circuit for my power supply. On 110v the supply can only generate up to 1200w of power but on a 240v it can do 1600w. Maybe this is the reason for the discrepancy reported here?


Title: Re: Antminer Z9 mini overclocked
Post by: Sebahl on August 29, 2018, 12:11:51 AM
Shoot! I was hoping to save on the price of an additional PSU. My miners arrive between 5-15 Sep so I'll try hooking them up and update this thread here then.

Maybe what seems theoretically all right is not possible practically for whatever reason.

You can power 3 as long as you don't overclock any of them.

But why? Overclocked each takes a max of 450w - that's a maximum of 1350w total. Some of my S9's running off the same type of supply consume up to 1450w. I'm curious as to what the difference is that's all.

Edit: It's to be noted here that I'm using a 240v circuit for my power supply. On 110v the supply can only generate up to 1200w of power but on a 240v it can do 1600w. Maybe this is the reason for the discrepancy reported here?

Oh I thought you were running 110v. With 240V you should be able to.


Title: Re: Antminer Z9 mini overclocked
Post by: xpulse on August 29, 2018, 02:57:15 AM
My 2 latest z9s will not do 750. faults

Same.  My new one will do 712 though, so that's decent.  I get 15.5 out of this one.  My batch 1 unit does better.  I have the batch one at 756 and it's getting 16.4 ksol.

Same here... Batch1 faster a little bit... difference ~1 - 1080 TI.


Title: Re: Antminer Z9 mini overclocked
Post by: TGJ on August 29, 2018, 04:03:38 AM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.


Title: Re: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on August 29, 2018, 05:05:05 AM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.


That is really interesting, I wonder what is the difference? Mine has been ripping along at 750 for over a month without any problems. It has been an impressive little machine.

And you are not the only one who seems to be having issues with batch 2.  And probably can't open a support ticket since you technically voided the warranty by OC it.


Title: Re: Antminer Z9 mini overclocked
Post by: oomurashin on August 29, 2018, 05:26:20 AM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.

i just recived my 2nd batch. mine too. 3rd chain die at 681 or up. :'( :'( :'(


Title: Re: Antminer Z9 mini overclocked
Post by: shaninium on August 29, 2018, 05:34:38 AM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.

i just recived my 2nd batch. mine too. 3rd chain die at 681 or up. :'( :'( :'(

What hash rate are you getting at 681 or close. Do you get hw errors on any chains or does it just hash at 0 when you go at or over 681


Title: Re: Antminer Z9 mini overclocked
Post by: oomurashin on August 29, 2018, 06:19:16 AM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.

i just recived my 2nd batch. mine too. 3rd chain die at 681 or up. :'( :'( :'(

What hash rate are you getting at 681 or close. Do you get hw errors on any chains or does it just hash at 0 when you go at or over 681
nothing else HW. quiet die chain3. im running 662 now. got about 14Khs ::) ::) ::)


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 29, 2018, 11:40:07 AM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.

i just recived my 2nd batch. mine too. 3rd chain die at 681 or up. :'( :'( :'(

What hash rate are you getting at 681 or close. Do you get hw errors on any chains or does it just hash at 0 when you go at or over 681
   
same here... what about flashing the may 2018 firmware on to it?.... my batch 1 runs fine at 750..17 sols batch 2 one board dies above 675 freq.. 14 sols...


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on August 29, 2018, 03:38:10 PM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.

i just recived my 2nd batch. mine too. 3rd chain die at 681 or up. :'( :'( :'(

What hash rate are you getting at 681 or close. Do you get hw errors on any chains or does it just hash at 0 when you go at or over 681
   
same here... what about flashing the may 2018 firmware on to it?.... my batch 1 runs fine at 750..17 sols batch 2 one board dies above 675 freq.. 14 sols...


I'm wondering if bitmain hasn't cherry picked hashboards for the Z9s over the minis in this batch?
In theory I'll have a Z9 next week to see how (if?) it overclocks.

I wouldn't imagine their yield suddenly going down across the board on OC stability.


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on August 29, 2018, 03:49:30 PM
My 2 latest z9s will not do 750. faults

I have the batch one at 756 and it's getting 16.4 ksol.
How did you get up to 756? my batch 1 only lists a maximum of 750.


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on August 29, 2018, 03:55:16 PM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.

i just recived my 2nd batch. mine too. 3rd chain die at 681 or up. :'( :'( :'(

What hash rate are you getting at 681 or close. Do you get hw errors on any chains or does it just hash at 0 when you go at or over 681
   
same here... what about flashing the may 2018 firmware on to it?.... my batch 1 runs fine at 750..17 sols batch 2 one board dies above 675 freq.. 14 sols...


I'm wondering if bitmain hasn't cherry picked hashboards for the Z9s over the minis in this batch?
In theory I'll have a Z9 next week to see how (if?) it overclocks.

I wouldn't imagine their yield suddenly going down across the board on OC stability.
This makes sense. I'm at least 95% sure that the Z9 is just 2 minis combined with a much higher stock clock frequency. Classic silicon binning.


Title: Re: Antminer Z9 mini overclocked
Post by: not.you on August 29, 2018, 05:16:22 PM
My 2 latest z9s will not do 750. faults

I have the batch one at 756 and it's getting 16.4 ksol.
How did you get up to 756? my batch 1 only lists a maximum of 750.

Just edit the cgminer.conf file and set whatever freq you want.  I tried higher but had to lower it since the higher values either weren't stable or produced a lower hashrate.  Eventually I settled on 756 as the sweet spot for this unit.

As others have said about their batch 2 miners, the third board on my batch 2 miner just doesn't handle OC very well.  The other two boards seem to do fine with the higher numbers but that third one either doesn't hash at all or does so very poorly.  I have to limit the OC on the whole thing to accommodate that board.


Title: Re: Antminer Z9 mini overclocked
Post by: Zed273 on August 29, 2018, 05:33:42 PM
As others have said about their batch 2 miners, the third board on my batch 2 miner just doesn't handle OC very well.  The other two boards seem to do fine with the higher numbers but that third one either doesn't hash at all or does so very poorly.  I have to limit the OC on the whole thing to accommodate that board.

Same for me.  Batch 1 has been going strong at 750 for a month but the third board on my Batch 2 won't let me get to 700.  Currently running at 687 for the time being.  It took a few hours for the third board to crap out at 700 so I'm still not sure 687 is going to hold.


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on August 29, 2018, 06:22:04 PM
I get my z9 mini in a couple of days. I only have not the orginal Bitmain psu. Do I really need the psu of Bitmain or can I use my 1000 watt quit psu (6+8 pins) ?
https://bitcointalk.org/index.php?topic=4404847.0;topicseen
Pick this thread up buddy we have been talking on this thread for 2 months now about pools and clocking the z9 mini
Yeah I read the whole topic (30 page's a lott of pages) but I saw never if I could mine with a other PSU then the orginal
Has anybody the answer ?


Title: Re: Antminer Z9 mini overclocked
Post by: not.you on August 29, 2018, 07:09:20 PM
I get my z9 mini in a couple of days. I only have not the orginal Bitmain psu. Do I really need the psu of Bitmain or can I use my 1000 watt quit psu (6+8 pins) ?
https://bitcointalk.org/index.php?topic=4404847.0;topicseen
Pick this thread up buddy we have been talking on this thread for 2 months now about pools and clocking the z9 mini
Yeah I read the whole topic (30 page's a lott of pages) but I saw never if I could mine with a other PSU then the orginal
Has anybody the answer ?

There is no original PSU as it does not come with one.  So whatever PSU has enough wattage is fine.  I ran my batch 1 on a corsair 750 for the past month but right now I have two of them running from an EVGA 1600.  As long as you have enough wattage and 4 x 6-pin PCIe connectors that's all you need.


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on August 29, 2018, 07:14:14 PM
I get my z9 mini in a couple of days. I only have not the orginal Bitmain psu. Do I really need the psu of Bitmain or can I use my 1000 watt quit psu (6+8 pins) ?
https://bitcointalk.org/index.php?topic=4404847.0;topicseen
Pick this thread up buddy we have been talking on this thread for 2 months now about pools and clocking the z9 mini
Yeah I read the whole topic (30 page's a lott of pages) but I saw never if I could mine with a other PSU then the orginal
Has anybody the answer ?

There is no original PSU as it does not come with one.  So whatever PSU has enough wattage is fine.  I ran my batch 1 on a corsair 750 for the past month but right now I have two of them running from an EVGA 1600.  As long as you have enough wattage and 4 x 6-pin PCIe connectors that's all you need.
thank you  ;D I have a 1000 watt I believe also corsair. That will do it


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 29, 2018, 07:39:45 PM
I have just taken delivery of 5 batch 2 Z9 Minis, and they are all limited somehow.. My batch 1 runs all day for 2 months at 17 sols.. these batch 2's will only work from 668 to 681 they just will not work on anything past 681.. wonder if flashing the Z9 May 18 firmware from Bitmain's site will load the same firmware as batch 1?...

Update just had one board drop off running at 668 for 15 mins just reduced it to 662 seems to be running more sols happy by being reduced....


Title: Re: Antminer Z9 mini overclocked
Post by: crazydane on August 29, 2018, 08:00:28 PM
Just edit the cgminer.conf file and set whatever freq you want.

What directory is this file in?  After editing the file, do I restart the miner?

My batch 1 Z9's made it really easy to change the freq from the drop down under advanced config, these batch 2 miners, at least the ones I got, only shows "balanced" under advanced config, so they are hashing at 50% less than my batch 1 Z9's.


Title: Re: Antminer Z9 mini overclocked
Post by: not.you on August 29, 2018, 08:13:13 PM
Just edit the cgminer.conf file and set whatever freq you want.

What directory is this file in?  After editing the file, do I restart the miner?

My batch 1 Z9's made it really easy to change the freq from the drop down under advanced config, these batch 2 miners, at least the ones I got, only shows "balanced" under advanced config, so they are hashing at 50% less than my batch 1 Z9's.

That whole "balanced" option thing appears to be a different firmware that only some of the batch 2 miners came with.  The cgminer.conf change I am referring to is something I have done on the old firmware so I don't know if it will work on the new one or not.  Somewhere around here though I saw a link someone posted about getting around that limit on that new firmware version, you may want to look for that if the cgminer.conf thing doesn't work on that version of the firmware.  The cgminer.conf file is in the config folder on the old firmware version.

You do have to restart cgminer after the change for it to take effect.  You can do
Code:
/etc/init.d/cgminer.sh restart
or you can just go to the miner configuration tab in the GUI and hit "save&apply" without changing anything and that will do it too.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 29, 2018, 08:22:05 PM
Just edit the cgminer.conf file and set whatever freq you want.

What directory is this file in?  After editing the file, do I restart the miner?

My batch 1 Z9's made it really easy to change the freq from the drop down under advanced config, these batch 2 miners, at least the ones I got, only shows "balanced" under advanced config, so they are hashing at 50% less than my batch 1 Z9's.

That whole "balanced" option thing appears to be a different firmware that only some of the batch 2 miners came with.  The cgminer.conf change I am referring to is something I have done on the old firmware so I don't know if it will work on the new one or not.  Somewhere around here though I saw a link someone posted about getting around that limit on that new firmware version, you may want to look for that if the cgminer.conf thing doesn't work on that version of the firmware.  The cgminer.conf file is in the config folder on the old firmware version.

You do have to restart cgminer after the change for it to take effect.  You can do
Code:
/etc/init.d/cgminer.sh restart
or you can just go to the miner configuration tab in the GUI and hit "save&apply" without changing anything and that will do it too.

Hi buddy, where do we you make them changes?... how do you open the firmware?
Thanks


Title: Re: Antminer Z9 mini overclocked
Post by: crazydane on August 29, 2018, 08:28:22 PM
Got it figured out.  The config file is in, wait for it, the /config directory.

You can use vi to edit it.

My batch 2 miners will not to more than 650.  Still a lot better than 500, but not like the 750 the batch 1 miners do. I tried 680 and they kept falling over so I settled on 650 for now.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 29, 2018, 08:31:34 PM
Got it figured out.  The config file is in, wait for it, the /config directory.

You can use vi to edit it.

My batch 2 miners will not to more than 650.  Still a lot better than 500, but not like the 750 the batch 1 miners do. I tried 680 and they kept falling over so I settled on 650 for now.
wheres that directory buddy?... how do i find that...
cheers


Title: Re: Antminer Z9 mini overclocked
Post by: FrozenChaos on August 29, 2018, 08:33:59 PM
Got it figured out.  The config file is in, wait for it, the /config directory.

You can use vi to edit it.

My batch 2 miners will not to more than 650.  Still a lot better than 500, but not like the 750 the batch 1 miners do. I tried 680 and they kept falling over so I settled on 650 for now.

That put you around 14k sol?


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 29, 2018, 08:37:43 PM
Got it figured out.  The config file is in, wait for it, the /config directory.

You can use vi to edit it.

My batch 2 miners will not to more than 650.  Still a lot better than 500, but not like the 750 the batch 1 miners do. I tried 680 and they kept falling over so I settled on 650 for now.
same here mine just fell over at 662 after 22 mins now at 650


Title: Re: Antminer Z9 mini overclocked
Post by: crazydane on August 29, 2018, 08:38:32 PM
Yes, 14 ksol vs. 16 ksol on my batch 1 miners.

@htautosjay you can download putty and use that to ssh into the miner.  Then go to the root folder, and then ' cd config' then 'vi cgminer.conf'.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 29, 2018, 08:40:16 PM
Yes, 14 ksol vs. 16 ksol on my batch 1 miners.

@htautosjay you can download putty and use that to ssh into the miner.  Then go to the root folder, and then ' cd config' then 'vi cgminer.conf'.
ill have a go :)
thank you


Title: Re: Antminer Z9 mini overclocked
Post by: qalowe on August 29, 2018, 11:45:19 PM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.

i just recived my 2nd batch. mine too. 3rd chain die at 681 or up. :'( :'( :'(

What hash rate are you getting at 681 or close. Do you get hw errors on any chains or does it just hash at 0 when you go at or over 681
   
same here... what about flashing the may 2018 firmware on to it?.... my batch 1 runs fine at 750..17 sols batch 2 one board dies above 675 freq.. 14 sols...


I'm wondering if bitmain hasn't cherry picked hashboards for the Z9s over the minis in this batch?
In theory I'll have a Z9 next week to see how (if?) it overclocks.

I wouldn't imagine their yield suddenly going down across the board on OC stability.
This makes sense. I'm at least 95% sure that the Z9 is just 2 minis combined with a much higher stock clock frequency. Classic silicon binning.

Just noticed Bitmains support page has a firmware upgrade for the Z9 that changes the frequency from 500 to 550...so no overclocking i guess?

https://service.bitmain.com/support/download?product=Antminer%20Z9

Edit: and the manual states it has a fixed frequency of 500 Mhz


Title: Re: Antminer Z9 mini overclocked
Post by: not.you on August 30, 2018, 12:12:11 AM


Just noticed Bitmains support page has a firmware upgrade for the Z9 that changes the frequency from 500 to 550...so no overclocking i guess?

https://service.bitmain.com/support/download?product=Antminer%20Z9

Edit: and the manual states it has a fixed frequency of 500 Mhz

Just so we are clear, you realize that is the Z9 full size you are talking about right?  The mini has a different firmware.

Regardless, I would guess OCing the full size will be a matter of figuring out which files to manually edit.


Title: Re: Antminer Z9 mini overclocked
Post by: qalowe on August 30, 2018, 12:14:52 AM


Just noticed Bitmains support page has a firmware upgrade for the Z9 that changes the frequency from 500 to 550...so no overclocking i guess?

https://service.bitmain.com/support/download?product=Antminer%20Z9

Edit: and the manual states it has a fixed frequency of 500 Mhz

Just so we are clear, you realize that is the Z9 full size you are talking about right?  The mini has a different firmware.

Regardless, I would guess OCing the full size will be a matter of figuring out which files to manually edit.

Yes, I understand that. I was replying to the question of if the full size Z9 could be overclocked without modifying the firmware.


Title: Re: Antminer Z9 mini overclocked
Post by: not.you on August 30, 2018, 12:46:26 AM


Just noticed Bitmains support page has a firmware upgrade for the Z9 that changes the frequency from 500 to 550...so no overclocking i guess?

https://service.bitmain.com/support/download?product=Antminer%20Z9

Edit: and the manual states it has a fixed frequency of 500 Mhz

Just so we are clear, you realize that is the Z9 full size you are talking about right?  The mini has a different firmware.

Regardless, I would guess OCing the full size will be a matter of figuring out which files to manually edit.

Yes, I understand that. I was replying to the question of if the full size Z9 could be overclocked without modifying the firmware.

Yeah I thought you might be actually but I wasn't sure since the start of that quoted conversation portion started with talking about OC'ing the mini.  Carry on friend!


Title: Re: Antminer Z9 mini overclocked
Post by: BitMiner247 on August 30, 2018, 07:04:42 AM
I don't know if this has been posted yet in this thread but you can overclock it by using google chrome to edit the frequency on the "Advanced Settings" page. The instructions are posted here in the description of this video.

https://youtu.be/XI31hHhvYzA (https://youtu.be/XI31hHhvYzA)

I've got mine running stable for the past few hours at 675m. I'm getting 14-15k sol. Any higher and I start to lose boards unfortunately.


Title: Re: Antminer Z9 mini overclocked
Post by: shaninium on August 30, 2018, 07:09:07 AM
I don't know if this has been posted yet in this thread but you can overclock it by using google chrome to edit the frequency on the "Advanced Settings" page. The instructions are posted here in the description of this video.

https://youtu.be/XI31hHhvYzA (https://youtu.be/XI31hHhvYzA)

I've got mine running stable for the past few hours at 675m. I'm getting 14-15k sol. Any higher and I start to lose boards unfortunately.

Does that work if the miner resets or powers up again? Do you have to type it all in again?


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on August 30, 2018, 07:23:39 AM
Does that work if the miner resets or powers up again? Do you have to type it all in again?

Once you do it, the "value" of the option you modified is written to the configuration files. It stays permanent untill you change frequency again or reinstall the firmware.

Code:
<option value="750"> 750M </option>

The value="750" field is the one that's written to the config files. The "750M" is simply what is displayed and does not matter.


Title: Re: Antminer Z9 mini overclocked
Post by: shaninium on August 30, 2018, 07:31:31 AM
Does that work if the miner resets or powers up again? Do you have to type it all in again?

Once you do it, the "value" of the option you modified is written to the configuration files. It stays permanent untill you change frequency again or reinstall the firmware.

Code:
<option value="750"> 750M </option>

The value="750" field is the one that's written to the config files. The "750M" is simply what is displayed and does not matter.

Sweet thanks


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 30, 2018, 01:14:35 PM
Does that work if the miner resets or powers up again? Do you have to type it all in again?

Once you do it, the "value" of the option you modified is written to the configuration files. It stays permanent untill you change frequency again or reinstall the firmware.

Code:
<option value="750"> 750M </option>

The value="750" field is the one that's written to the config files. The "750M" is simply what is displayed and does not matter.

Sweet thanks
now one will not run on 650 freq... could it be thermal cut off ?...


Title: Re: Antminer Z9 mini overclocked
Post by: shaninium on August 30, 2018, 05:19:43 PM
Does that work if the miner resets or powers up again? Do you have to type it all in again?

Once you do it, the "value" of the option you modified is written to the configuration files. It stays permanent untill you change frequency again or reinstall the firmware.

Code:
<option value="750"> 750M </option>

The value="750" field is the one that's written to the config files. The "750M" is simply what is displayed and does not matter.

Sweet thanks
now one will not run on 650 freq... could it be thermal cut off ?...

It's a stability issue, unless your Temps are in the 80s,90s. I think bitmain ensured we didn't win the Silicon lottery , and picked only the most reliable chips for the z9, and not the z9 mini. Maybe if the 250 coupon was used , it made this worse too.


Title: Re: Antminer Z9 mini overclocked
Post by: BitMiner247 on August 30, 2018, 05:47:40 PM
Im curious to see what the larger z9 can be overclocked to and if they use the same chips as in these. Perhaps you're right maybe they picked the best ones for the z9 and used the rejects for the mini's.

I did have one mini from the first batch which has the same chip issue. I could only overclock to 550m before the middle board would drop out. My other first batch ones are all stable at 750.

So far my second batch ones are running stable at 675m for 10+ hours and getting 14-15 ksol which isn't too bad.


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on August 30, 2018, 05:58:41 PM
Im curious to see what the larger z9 can be overclocked to and if they use the same chips as in these.

They're most probably using the same chips. The manual for the Z9 mini says it has 12 chips and produces 10 KS/s. The manual for the Z9 says it has 48 chips and produces 40.x KS/s. Proportionally equal so most probably same chip.


Title: Re: Antminer Z9 mini overclocked
Post by: eviltuna on August 30, 2018, 07:30:12 PM
Does that work if the miner resets or powers up again? Do you have to type it all in again?

Once you do it, the "value" of the option you modified is written to the configuration files. It stays permanent untill you change frequency again or reinstall the firmware.

Code:
<option value="750"> 750M </option>

The value="750" field is the one that's written to the config files. The "750M" is simply what is displayed and does not matter.

I get hardware errors on both my batch 2 units @ 750.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 30, 2018, 07:48:06 PM
Does that work if the miner resets or powers up again? Do you have to type it all in again?

Once you do it, the "value" of the option you modified is written to the configuration files. It stays permanent untill you change frequency again or reinstall the firmware.

Code:
<option value="750"> 750M </option>

The value="750" field is the one that's written to the config files. The "750M" is simply what is displayed and does not matter.

I get hardware errors on both my batch 2 units @ 750.
mine wont even entertain anything over 681


Title: Re: Antminer Z9 mini overclocked
Post by: Sebahl on August 30, 2018, 08:40:42 PM
Does that work if the miner resets or powers up again? Do you have to type it all in again?

Once you do it, the "value" of the option you modified is written to the configuration files. It stays permanent untill you change frequency again or reinstall the firmware.

Code:
<option value="750"> 750M </option>

The value="750" field is the one that's written to the config files. The "750M" is simply what is displayed and does not matter.

I get hardware errors on both my batch 2 units @ 750.

For me one hashboard just stops hashing if I go above 675. No hardware errors, just no hash.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on August 30, 2018, 08:47:32 PM
Does that work if the miner resets or powers up again? Do you have to type it all in again?

Once you do it, the "value" of the option you modified is written to the configuration files. It stays permanent untill you change frequency again or reinstall the firmware.

Code:
<option value="750"> 750M </option>

The value="750" field is the one that's written to the config files. The "750M" is simply what is displayed and does not matter.

I get hardware errors on both my batch 2 units @ 750.

For me one hashboard just stops hashing if I go above 675. No hardware errors, just no hash.
we are all getting the same.. if you go higher it wont even begin to hash


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on August 30, 2018, 09:26:38 PM
I'll get a couple of Z9 Mini's delivered between the 5th and the 15th of September. Will update my overclock settings here.


Title: Re: Antminer Z9 mini overclocked
Post by: C3MINER on August 31, 2018, 02:24:43 AM
Download Antminer-Z9-Mini-201805262047-500M.tar.gz from Bitmain support if you have batch 2 Antiminer Z9 mini. After updating it will show Sat May 26 20:42:30 CST 2018 for File System Version. Set frequency to 687M. I'm seeing 15.3 ~ 15.6 Ksol/s average. I set the fan to 75% as well. Running for 4+ hours atm with no issues. I believe the temperature of the Temp(Chip) has a lot with to do with the board dropping sol/s. I ran 700M at 65% in a 72 degree room yesterday for 3 hours but when I woke up the next morning only 1 of 3 boards were hashing. Will update status in the morning.



Title: Re: Antminer Z9 mini overclocked
Post by: Strovu on August 31, 2018, 02:48:12 AM
I just received my first second batch Z9 mini too. I had 2 from the first batch both running at 750M (16.2 and 16.5 KH/s)without any problem since day 1 with fan to auto.

But my last one from batch 2 has the same exact problem as many here. I'm kind of happy to have found this thread and to realize I'm not the only one. I also thought that 681 was the max OC but after a few hours I lost a board going to zero. I am trying at the default 500M to see if the problem occurs too.

So Bitmain made sure they put the very best board in batch ones so they get some nice reviews all accross the net to sell more with batch 2 where they dumped all their faulty boards... And they will say... well only 10Khas/s is garanteed folks!

I hope I'm hallucinating and someone will just find a quick fix!


Title: Re: Antminer Z9 mini overclocked
Post by: Strovu on August 31, 2018, 10:47:33 AM
662 was working ok all night, 15.1KH/s on the pool. Adn DIFF going through the roof right now: 20 millions!!!!


Title: Re: Antminer Z9 mini overclocked
Post by: not.you on August 31, 2018, 11:08:30 AM
Anyone opened up the miner to look at the boards?  I'm curious if there are markings on the weak hashing boards to indicate some sort of difference and that bitmain knew something about them.  Seems very coincidental that so many of these batch 2 miners have 1 weak board. 


Title: Re: Antminer Z9 mini overclocked
Post by: kodokbuduk on August 31, 2018, 03:06:40 PM
The most I can get out of my two Batch 2 machines is 687 (although 681 produces a higher hashrate) and 625. Anything over that and the third hashboard on both machines goes to 0 hashrate.

i just recived my 2nd batch. mine too. 3rd chain die at 681 or up. :'( :'( :'(

What hash rate are you getting at 681 or close. Do you get hw errors on any chains or does it just hash at 0 when you go at or over 681
   
same here... what about flashing the may 2018 firmware on to it?.... my batch 1 runs fine at 750..17 sols batch 2 one board dies above 675 freq.. 14 sols...


I'm wondering if bitmain hasn't cherry picked hashboards for the Z9s over the minis in this batch?
In theory I'll have a Z9 next week to see how (if?) it overclocks.

I wouldn't imagine their yield suddenly going down across the board on OC stability.
This makes sense. I'm at least 95% sure that the Z9 is just 2 minis combined with a much higher stock clock frequency. Classic silicon binning.

Just noticed Bitmains support page has a firmware upgrade for the Z9 that changes the frequency from 500 to 550...so no overclocking i guess?

https://service.bitmain.com/support/download?product=Antminer%20Z9

Edit: and the manual states it has a fixed frequency of 500 Mhz

What is the default freq for batch 2? 500mhz or 550??


Title: Re: Antminer Z9 mini overclocked
Post by: Blastcaps on August 31, 2018, 03:20:06 PM
From what I've seen, recommended is keeping it 60 degrees or under


Title: Re: Antminer Z9 mini overclocked
Post by: masrobots on August 31, 2018, 03:21:30 PM
What is the default freq for batch 2? 500mhz or 550??

Most (but not all) batch 2 units have the new firmware - the new firmware has only one setting in the advanced performance drop down menu that says "balanced." That setting equates to a frequency of 500 MHz.


Title: Re: Antminer Z9 mini overclocked
Post by: hillbilli on August 31, 2018, 03:32:56 PM
hi

Could someone Upload a Firmware Backup from the first Batch of Z9 mini @650 Mhz?

It would be great  ;D


Greets

hillbilli


Title: Re: Antminer Z9 mini overclocked
Post by: fanatic26_ on August 31, 2018, 04:33:49 PM
Anyone opened up the miner to look at the boards?  I'm curious if there are markings on the weak hashing boards to indicate some sort of difference and that bitmain knew something about them.  Seems very coincidental that so many of these batch 2 miners have 1 weak board. 

So because you cant OVERCLOCK one board as much as the others you are jumping right to a conspiracy theory that bitmain is doing things on purpose?

The boards are not weak, they hash just fine at the factory speeds.

There is NO guarantee of overclockability, you should be thanking bitmain for putting out a unit that can overclock by 40-60% in the first place. They only promised 10k sols out of the device....


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on August 31, 2018, 06:01:11 PM
Anyone opened up the miner to look at the boards?  I'm curious if there are markings on the weak hashing boards to indicate some sort of difference and that bitmain knew something about them.  Seems very coincidental that so many of these batch 2 miners have 1 weak board.  

So because you cant OVERCLOCK one board as much as the others you are jumping right to a conspiracy theory that bitmain is doing things on purpose?

The boards are not weak, they hash just fine at the factory speeds.

There is NO guarantee of overclockability, you should be thanking bitmain for putting out a unit that can overclock by 40-60% in the first place. They only promised 10k sols out of the device....
I agree that technically they were honest with them providing their product to the advertised spec. But you can't say it isn't shady or misleading to give first batch users some extra unexpected hashing power as a silent marketing strategy just to sell batch 2s to folks expecting the same. I'm not going to bitch & complain about it because yes, I'm getting no less hashing power than what I paid for, but also I personally do not support this marketing practice and as a result I will never be purchasing another Bitmain product or recommend them.

Edit: Also, this is neither a conspiracy nor a coincidence. It's simply silicon binning which is a standard practice throughout the entire semiconducter industry because all chips from a batch are not created equally. The part where it gets shady is that it's likely the highest quality chips were reserved for the batch 1s so everyone could hype over a 50% OC and then pre-order batch 2s.


Title: Re: Antminer Z9 mini overclocked
Post by: eviltuna on August 31, 2018, 09:01:02 PM
Anyone opened up the miner to look at the boards?  I'm curious if there are markings on the weak hashing boards to indicate some sort of difference and that bitmain knew something about them.  Seems very coincidental that so many of these batch 2 miners have 1 weak board.  

So because you cant OVERCLOCK one board as much as the others you are jumping right to a conspiracy theory that bitmain is doing things on purpose?

The boards are not weak, they hash just fine at the factory speeds.

There is NO guarantee of overclockability, you should be thanking bitmain for putting out a unit that can overclock by 40-60% in the first place. They only promised 10k sols out of the device....
I agree that technically they were honest with them providing their product to the advertised spec. But you can't say it isn't shady or misleading to give first batch users some extra unexpected hashing power as a silent marketing strategy just to sell batch 2s to folks expecting the same. I'm not going to bitch & complain about it because yes, I'm getting no less hashing power than what I paid for, but also I personally do not support this marketing practice and as a result I will never be purchasing another Bitmain product or recommend them.

Edit: Also, this is neither a conspiracy nor a coincidence. It's simply silicon binning which is a standard practice throughout the entire semiconducter industry because all chips from a batch are not created equally. The part where it gets shady is that it's likely the highest quality chips were reserved for the batch 1s so everyone could hype over a 50% OC and then pre-order batch 2s.

Why is this shady? They aren't going to redesign the chips from batch 1 to batch two just so YOU can't overclock. Get over yourself, the world doesn't revolve around you.


Title: Re: Antminer Z9 mini overclocked
Post by: KrK27 on August 31, 2018, 09:35:17 PM
Same for me, 2 Z9mini received 27/08, 650m is limit working, at 14,5 avrg


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on August 31, 2018, 09:49:55 PM
Anyone opened up the miner to look at the boards?  I'm curious if there are markings on the weak hashing boards to indicate some sort of difference and that bitmain knew something about them.  Seems very coincidental that so many of these batch 2 miners have 1 weak board.  

So because you cant OVERCLOCK one board as much as the others you are jumping right to a conspiracy theory that bitmain is doing things on purpose?

The boards are not weak, they hash just fine at the factory speeds.

There is NO guarantee of overclockability, you should be thanking bitmain for putting out a unit that can overclock by 40-60% in the first place. They only promised 10k sols out of the device....
I agree that technically they were honest with them providing their product to the advertised spec. But you can't say it isn't shady or misleading to give first batch users some extra unexpected hashing power as a silent marketing strategy just to sell batch 2s to folks expecting the same. I'm not going to bitch & complain about it because yes, I'm getting no less hashing power than what I paid for, but also I personally do not support this marketing practice and as a result I will never be purchasing another Bitmain product or recommend them.

Edit: Also, this is neither a conspiracy nor a coincidence. It's simply silicon binning which is a standard practice throughout the entire semiconducter industry because all chips from a batch are not created equally. The part where it gets shady is that it's likely the highest quality chips were reserved for the batch 1s so everyone could hype over a 50% OC and then pre-order batch 2s.

Why is this shady? They aren't going to redesign the chips from batch 1 to batch two just so YOU can't overclock. Get over yourself, the world doesn't revolve around you.
It's shady because of perceived value pricing. Bitmain sold batch 2s at the price they did knowing the value was perceived higher than reality. I don't even know what you're talking about with chip redesigns, they're the same chips obviously. I really don't know what I said that makes you think i'm selfish either, I'm just saying how I feel about this behavior. Sorry that some random guy on the internet choosing to no longer support a specific company offends you.


Title: Re: Antminer Z9 mini overclocked
Post by: MnngSprvsr on August 31, 2018, 09:56:44 PM
Same for me, 2 Z9mini received 27/08, 650m is limit working, at 14,5 avrg

675 will also run stable


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on August 31, 2018, 10:12:40 PM
It's shady because of perceived value pricing.

IMHO this doesn't even start qualifying as 'shady' as per Bitmain standards. They're selling units advertised at 10KSol/s - which can be overclocked by a minimum of 45% and a maximum of 60%. Period. 14.5 KSol/s is a great overclock over specs - whichever way you look at it. My batch 1 only achieves 15.5 KSol/s vs. the 16.5 - 17 KSol/s others are getting - there's some variation in batch 1 as well. Also, I've not heard of any Batch 2 machines which are getting less than 14.5 KSol/s.

"Shady practises" would include some of the following:
  • Selling the first batch at $1999 and then dropping them down to $1500 and $850 within a month's time.
  • Issuing coupons to people who paid full price for it - that's like saying - come on suckers - buy more from us if you want to make up for the drop in price.
  • Advertising as "limited to one unit per customer" and then changing that to 50 units per customer in a weeks time, and then making it unlimited after that.
  • Rebranding and releasing old models as new with some miniscule adjustments to dump old stock. S9, S9i, S9j - all basically the same machines. L3+, L3++ - same story.

And the list could go on and on.


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on August 31, 2018, 10:54:22 PM
It's shady because of perceived value pricing.

"Shady practises" would include some of the following:
  • Selling the first batch at $1999 and then dropping them down to $1500 and $850 within a month's time.
  • Issuing coupons to people who paid full price for it - that's like saying - come on suckers - buy more from us if you want to make up for the drop in price.
  • Advertising as "limited to one unit per customer" and then changing that to 50 units per customer in a weeks time, and then making it unlimited after that.
  • Rebranding and releasing old models as new with some miniscule adjustments to dump old stock. S9, S9i, S9j - all basically the same machines. L3+, L3++ - same story.

And the list could go on and on.
Exactly, it's not like this is Bitmain's first sin. This just happens to be the one that finally pushed me over the edge.
Also, how are batch 2s getting 14.5k sols/s? I haven't gotten mine yet but from what I've read if I understand correctly they locked them down so no more OC.


Title: Re: Antminer Z9 mini overclocked
Post by: steemboatwilly on August 31, 2018, 11:32:26 PM
I just got my z9 mini an hour ago and it’s stuck on balanced. Can’t seem to find a way to change the attribute as well.
Hmm


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 01, 2018, 01:06:22 AM
Also, how are batch 2s getting 14.5k sols/s? I haven't gotten mine yet but from what I've read if I understand correctly they locked them down so no more OC.

They tried to lock them down but the workaround to overclocking them is pretty simple. You just have to hit F12 in Google Chrome, inspect the HTML and change the overclock value for the option to whatever you want.

There are multiple posts on this. You can find one of them here:
https://bitcointalk.org/index.php?topic=4610213.msg44904070#msg44904070 (https://bitcointalk.org/index.php?topic=4610213.msg44904070#msg44904070)

However, because the chips in batch 2 are "inferior" or whatever to batch 1, most people are not able to overclock reliably to over 675Mh or so - which translates to about 14.5KSol/s.

P.S. This applies to @steemboatwilly's post above as well.



Title: Re: Antminer Z9 mini overclocked
Post by: KaydenC on September 01, 2018, 01:45:56 AM
Same for me, 2 Z9mini received 27/08, 650m is limit working, at 14,5 avrg

675 will also run stable

Lucky for you, 3 of mine will only do 650, even 662 will drop boards after a few hours.


Title: Re: Antminer Z9 mini overclocked
Post by: not.you on September 01, 2018, 02:09:13 AM
Anyone opened up the miner to look at the boards?  I'm curious if there are markings on the weak hashing boards to indicate some sort of difference and that bitmain knew something about them.  Seems very coincidental that so many of these batch 2 miners have 1 weak board. 

So because you cant OVERCLOCK one board as much as the others you are jumping right to a conspiracy theory that bitmain is doing things on purpose?

The boards are not weak, they hash just fine at the factory speeds.

There is NO guarantee of overclockability, you should be thanking bitmain for putting out a unit that can overclock by 40-60% in the first place. They only promised 10k sols out of the device....

Seems like maybe you projected a whole bunch of shit I didn't say into what I actually said.


Title: Re: Antminer Z9 mini overclocked
Post by: eviltuna on September 01, 2018, 02:20:27 AM
Anyone opened up the miner to look at the boards?  I'm curious if there are markings on the weak hashing boards to indicate some sort of difference and that bitmain knew something about them.  Seems very coincidental that so many of these batch 2 miners have 1 weak board.  

So because you cant OVERCLOCK one board as much as the others you are jumping right to a conspiracy theory that bitmain is doing things on purpose?

The boards are not weak, they hash just fine at the factory speeds.

There is NO guarantee of overclockability, you should be thanking bitmain for putting out a unit that can overclock by 40-60% in the first place. They only promised 10k sols out of the device....
I agree that technically they were honest with them providing their product to the advertised spec. But you can't say it isn't shady or misleading to give first batch users some extra unexpected hashing power as a silent marketing strategy just to sell batch 2s to folks expecting the same. I'm not going to bitch & complain about it because yes, I'm getting no less hashing power than what I paid for, but also I personally do not support this marketing practice and as a result I will never be purchasing another Bitmain product or recommend them.

Edit: Also, this is neither a conspiracy nor a coincidence. It's simply silicon binning which is a standard practice throughout the entire semiconducter industry because all chips from a batch are not created equally. The part where it gets shady is that it's likely the highest quality chips were reserved for the batch 1s so everyone could hype over a 50% OC and then pre-order batch 2s.



Why is this shady? They aren't going to redesign the chips from batch 1 to batch two just so YOU can't overclock. Get over yourself, the world doesn't revolve around you.
It's shady because of perceived value pricing. Bitmain sold batch 2s at the price they did knowing the value was perceived higher than reality. I don't even know what you're talking about with chip redesigns, they're the same chips obviously. I really don't know what I said that makes you think i'm selfish either, I'm just saying how I feel about this behavior. Sorry that some random guy on the internet choosing to no longer support a specific company offends you.


If you think it's shady, vote with your wallet and don't buy. I've been doing business with Chinese companies for a long time and this is no where near shady. They didn't promise you that batch 2 will be better or the same. As for pricing its supply and demand, I would set the prices like that too if I was in their position. It's called running a business.


Title: Re: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on September 01, 2018, 02:50:16 AM
I just got my z9 mini an hour ago and it’s stuck on balanced. Can’t seem to find a way to change the attribute as well.
Hmm

Mine didn't have a balanced option, can you share a picture?  What batch was yours?  :o


Title: Re: Antminer Z9 mini overclocked
Post by: Joykiller on September 01, 2018, 02:53:20 AM
I just got my z9 mini an hour ago and it’s stuck on balanced. Can’t seem to find a way to change the attribute as well.
Hmm

Mine didn't have a balanced option, can you share a picture?  What batch was yours?  :o

I have a First batch which was fine, Got a Second batch delivered a few hours ago and its firmware had a Balanced no OC firmware preloaded.

It seems they have altered the firmware that came with it to stop OCing too high.

Now I flashed the firmware to the older firmware on the website It cant seem to OC as high as the first batch.  I got it at 650 mhz and increasing as I go. Once it gets too high one of the chips shuts down.

They obviously nerfed the fuck out of the 2nd batches.


UPDATE:

Seems if you flash second batch with firmware from website and try older settings it will not work too well, because freq must of changed on the new chips? It seems good OC max is around 681~ on second batch pulling about 15.8k~ solz on Zec.

Just checked again and it lowered down on the 3rd chip, lowering the freq again, ill let you know what I find.

Update 2: Run time 15m~

Freq: 675 Fan: 95% - They running fairly hot these chips they must of changed something on them big time.  They holding around 72c atm on the chip. Might have to think about adding a 2nd fan on the back. Getting about 14.8-15k sol. Will update in a few hours.


Title: Re: Antminer Z9 mini overclocked
Post by: jhax01 on September 01, 2018, 03:06:53 AM
675 here for the last 24hrs.  One straggler is averaging 14.5K but the rest are 15-16K at the pool.  Other than the bullsh*t surprise import tax, I'm satisfied.


Title: Re: Antminer Z9 mini overclocked
Post by: Joykiller on September 01, 2018, 03:10:02 AM
675 here for the last 24hrs.  One straggler is averaging 14.5K but the rest are 15-16K at the pool.  Other than the bullsh*t surprise import tax, I'm satisfied.

You notice the chips cant seem to handle as well as the first batch? Like these ones are fairly hot? Mines running 14.9 with 675 and temps are like 72c It's 77f in this room ambient.


Title: Re: Antminer Z9 mini overclocked
Post by: jhax01 on September 01, 2018, 03:18:07 AM
675 here for the last 24hrs.  One straggler is averaging 14.5K but the rest are 15-16K at the pool.  Other than the bullsh*t surprise import tax, I'm satisfied.

You notice the chips cant seem to handle as well as the first batch? Like these ones are fairly hot? Mines running 14.9 with 675 and temps are like 72c It's 77f in this room ambient.

I have two that are running warm-ish, 65-68 at the moment, but the others are 58-62 in 74F ambient.  I have the fans set at 95% tho, so they are pretty noisy.


Title: Re: Antminer Z9 mini overclocked
Post by: Joykiller on September 01, 2018, 06:27:15 AM
Yep about the same here, thankfully summer is ending.


Title: Re: Antminer Z9 mini overclocked
Post by: olivergaryccm on September 01, 2018, 07:40:45 AM
How did you guys managed to change the clock setting? For the new batch I only see "balanced" in the advanced options. My previous miner from batch one I can simply change to 750Mhz in the drop down. The new batch 2 miner do not have this option. Is it locked at 500Mhz?


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 01, 2018, 09:12:23 AM
How did you guys managed to change the clock setting? For the new batch I only see "balanced" in the advanced options. My previous miner from batch one I can simply change to 750Mhz in the drop down. The new batch 2 miner do not have this option. Is it locked at 500Mhz?

This was discussed in this thread before. Check https://bitcointalk.org/index.php?topic=4610213.msg45002416#msg45002416 (https://bitcointalk.org/index.php?topic=4610213.msg45002416#msg45002416)


Title: Re: Antminer Z9 mini overclocked
Post by: Sebahl on September 01, 2018, 10:37:50 AM
I summarized the steps for overclocked a locked batch 2 Mini:
Use Google Chrome. Log into your Antminer and go to the tab where you would change the frequency (now you only see 'balanced' there). Press F12 which opens the console to see the website code. Press Ctrl+f to search this for ant_freq. You will see that the balanced profile is equal to a clock frequency of 500Mhz. Here you can edit the number (in the code) to whatever you like (675 seems to be a safe bet) and then make sure you select the balanced profile in the antminer gui and click save/apply. You got yourself an overclocked batch 2 Z9 Mini.


Title: Re: Antminer Z9 mini overclocked
Post by: mikxxy on September 01, 2018, 05:55:47 PM
Folks, it's pretty obvious what goning on with batch 2, namely "container garbage". Some times something goes wrong in the asic manufacturing process, i.e masking problems i.e adhesion,  lithographic mishappenings i.e operating misstakes, etc  the result, wafers, cut dyes do not meet specfications, the whole batch is ruined, and is to be discarded (container garbage, some thimes picket up at nigths and used in "cheap apps, toys) BUT in this case BITMAIN descided not to discard them but use the to build "crappy" boards, and systematically place one in each Z9 mini, (i orded 2 of them and each has faulty board!) i would like call this as deviant behaviour unexpected from such a large company! Even if the they sold the device as with 10k specs is not the same product as the 1 batch as there ara unexpected changes i.e Balance and also to come a "turbo upgrade" as noteciced in config file, becuase of the failty batch they had to design a "new concept" compared to the first batch to "compensate". What worries my is that the big Z9 may be build on these chips, and if i'm rigth who nows how these devices will behave on short and long perspective?!?!

I also belive that the mini was to be discontiued inorder to push z9 big, and have cannibalization from running the mini in parallell (as every one would buy 3 minis 3XOV42Ksol/$2550 to achive the same performance but for less money, or 4xOC=64kSol/$3400 plus ability to use more more cupons as well, one for each device), as, the mini suddenly was reinstated, (what every marketing manager would call bad market strategy), underpins my theory that they had to come up with an emergency strategy! Note that their PR department beeing very active on this thread defending the 10k deal!


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 02, 2018, 12:36:33 AM
snip ......wafers, cut dyes do not meet specfications .... snip

Frankly I think this is a massive overreaction. No chip designed to be run at 10k and running comfortably at 14.5k can be rationally labelled as "not meeting specifications" just because some other chips previously ran at 16.5k.


Title: Re: Antminer Z9 mini overclocked
Post by: steemboatwilly on September 02, 2018, 12:54:03 AM
To unlock back the way we are complaining about not having, go to the Bitmain website and get the firmware. It should have a 500 at the end of it. Back your old one up and flash the new one. Problem solved.


Title: Re: Antminer Z9 mini overclocked
Post by: mikxxy on September 02, 2018, 04:04:53 AM
snip ......wafers, cut dyes do not meet specfications .... snip

Frankly I think this is a massive overreaction. No chip designed to be run at 10k and running comfortably at 14.5k can be rationally labelled as "not meeting specifications" just because some other chips previously ran at 16.5k.

snip ......wafers, cut dyes do not meet specfications .... snip

Frankly I think this is a massive overreaction. No chip designed to be run at 10k and running comfortably at 14.5k can be rationally labelled as "not meeting specifications" just because some other chips previously ran at 16.5k.

You dont seem to know alot about ASIC production, things can wrong and then you have to discard the whole batch. We can all agree that the problem sits in ONE board. The Chips on them are not capable to run on higher freqvency. You DONT change the specs. in different batches, becuase 99% of the cost is in the making specs and production setup. The so called non-recurring engineering process, the production of singel chips does not cost many pennies each, 1-5%. So who belives that they redesigned some chips to lower OC posibility and put in ONE board, and who thinks there migth be faulty chips caused by production errors and instead of discard them, they made boards of them wich was systematically put in each devive? The answer is obvious isnt it? or lets have have vote? Note the PR-guys are working hard here to find the rigth arguments to save the brand!!


Title: Re: Antminer Z9 mini overclocked
Post by: mikxxy on September 02, 2018, 04:31:13 AM
snip ......wafers, cut dyes do not meet specfications .... snip

Frankly I think this is a massive overreaction. No chip designed to be run at 10k and running comfortably at 14.5k can be rationally labelled as "not meeting specifications" just because some other chips previously ran at 16.5k.

snip ......wafers, cut dyes do not meet specfications .... snip

Frankly I think this is a massive overreaction. No chip designed to be run at 10k and running comfortably at 14.5k can be rationally labelled as "not meeting specifications" just because some other chips previously ran at 16.5k.

You dont seem to know alot about ASIC production, things can wrong and then you have to discard the whole batch. We can all agree that the problem sits in ONE board. The Chips on them are not capable to run on higher freqvency. You DONT change the specs. in different batches, becuase 99% of the cost is in the making specs and production setup. The so called non-recurring engineering process, the production of singel chips does not cost many pennies each, 1-5%. So who belives that they redesigned some chips to lower OC posibility and put in ONE board, and who thinks there migth be faulty chips caused by production errors and instead of discard them, they made boards of them wich was systematically put in each devive? The answer is obvious isnt it? or lets have have vote? Note the PR-guys are working hard here to find the rigth arguments to save the brand!!

But actually the above said is irrelevant becuase the delivered devices meets whats promised, 10k/sol. The OC expectations is something else. So in this perspective there is nothing wrong with the chips or the device it self. BUT the "irrelevant" expectations was any way a product of the company.


Title: Re: Antminer Z9 mini overclocked
Post by: TGJ on September 02, 2018, 04:46:04 AM
I don’t think it’s limited to one board. I’ve had hardware failures on two out of the three boards on my machines.


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 02, 2018, 05:15:23 AM
You dont seem to know alot about ASIC production, things .......

Yeah. I don't know a lot about ASIC production. I'm just quite happy with the second batch performance. Hope I'm happy about the profitability long enough to break even though!


Title: Re: Antminer Z9 mini overclocked
Post by: MrTBlock on September 02, 2018, 07:16:33 AM
My first bath all pull 750 Frequency with 16 to 17k Sols. Temp can be in high 50s with full fan or mid 60s on auto fan.

Second batch came with the balanced firmware where you cant adjust. I experimented with changing it manually and found anything over 700 a board would cut out. So im running second bath at 700 all stable and running at 15.5Sols and low 60s temp on auto fan.

Overall i would say they react to heat and fan speed exactly the same as the first batch. But second batch issnt as forgiving above 700 frequency.

L
Power supply is 1 APW3++ two every two z9 minis. Ambient temperature in the data centre is around 68 deg right now.


Title: Re: Antminer Z9 mini overclocked
Post by: Strovu on September 02, 2018, 11:31:09 AM
Mine was working fine at 662 for 36 hours, then one of the board went to zero... I have to lower to 650. So maybe then run fine only at 500M finally...

I also strongly disagree with such marketing practices. They made sure the first batch would be perfect so all the reviewers would make free publicity for them about a 750M stable Z9mini then the orders should have flow in from people expecting the Z9 mini to all be like the ones they saw in the reviews. Also the first batch came in with new promises of transparency from Bitmain with the published log of each unit shipping but for batch 2 it'S radio silence again.


Title: Re: Antminer Z9 mini overclocked
Post by: mikxxy on September 02, 2018, 01:56:27 PM
 Now there are specs. on Z9 big, as was not shown earlier.

Before power consumption was stated as 1250watt,now 970-1162watt. for big and 300watt for mini, now 247-266watt, so my conclusion that is another chip they using, probably changed the spec. and made a batch rerun, the instability in OC mode ithink is a secundary outcome, the primary goal was to lower energy consumption? or cheaper chip? Any way the first one is more stable and could probably run higher than 750 is changed manualy.
We can also see that there is 3 boards, total 48 chips (vs. mini's 12) so its a "full version", it also says it runs 42ksol/s normal and 44kSol/s in the supposed "Turbo mode"

I think it would be appropiate for the company to release an explantion to clear all the speculations that florish and demonize their company and damaging the Brand. That would be in their best intrest!


 



Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 02, 2018, 02:00:18 PM

 Now there are specs. on Z9 big, as was not shown earlier.

Before power consumption was stated as 1250watt,now 970-1162watt. for big and 300watt for mini, now 247-266watt, so my conclusion that is another chip they using, probably changed the spec. and made a batch rerun, the instability in OC mode ithink is a secundary outcome, the primary goal was to lower energy consumption? or cheaper chip? Any way the first one is more stable and could probably run higher than 750 is changed manualy.
We can also see that there is 3 boards, total 48 chips (vs. mini's 12) so its a "full version", it also says it runs 42ksol/s normal and 44kSol/s in the supposed "Turbo mode"


 


Has anyone taken delivery of a Z9 Big yet ?... Can you post what and if it will OC Please when you get it? 
Thanks


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on September 02, 2018, 02:04:43 PM
my 12 batch 1s can all run at 750Mhz and in my setup range from a stable 63C to 74C across them; a lot of variance.
2 of mine run fastest at 725Mhz.

All of them run "best" at 700Mhz or less -- best is a combination of heat vs. hashrate.

At max (750), mine do a stable 192kSol/sec with variance up to ~195.

At 700Mhz, mine do a stable 186kSol/sec with temps in a managable 72C or less.

My setup: https://imgur.com/a/6SBUt2S

(copying my setup as is would be a bad idea for reasons I don't have time to get into at the moment, but you cannot egress 1000cfm out of your house without other problems...).

The most ideal configuration is for 650Mhz across all of mine -- they are stable and cool with minimal (relative) airflow across them (and thus minimal impact to the house environment).

My point here is... even though I can make the batch1s not crash at 750Mhz, that isn't their ideal point. Any unit alone, I can get to 725/750, but when  I combine them all together and their heat impacts each other, 650-700 is ideal with minimal 'loss' in hashrate.
... Which puts them in line with the ~681mhz folk are seeing now.

Once my Z9s come in, I'll see how those chips work in comparison....

-j


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on September 02, 2018, 02:07:08 PM

 Now there are specs. on Z9 big, as was not shown earlier.

Before power consumption was stated as 1250watt,now 970-1162watt. for big and 300watt for mini, now 247-266watt, so my conclusion that is another chip they using, probably changed the spec. and made a batch rerun, the instability in OC mode ithink is a secundary outcome, the primary goal was to lower energy consumption? or cheaper chip? Any way the first one is more stable and could probably run higher than 750 is changed manualy.
We can also see that there is 3 boards, total 48 chips (vs. mini's 12) so its a "full version", it also says it runs 42ksol/s normal and 44kSol/s in the supposed "Turbo mode"


 


Has anyone taken delivery of a Z9 Big yet ?... Can you post what and if it will OC Please when you get it? 
Thanks

I'm not sure that they have shipped yet -- but should "soon" per their support. As of yesterday there was not a certificate of conformity posted -- they might actually need that in order to ship through US customs, .. not sure.

-j


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 02, 2018, 02:12:01 PM

 Now there are specs. on Z9 big, as was not shown earlier.

Before power consumption was stated as 1250watt,now 970-1162watt. for big and 300watt for mini, now 247-266watt, so my conclusion that is another chip they using, probably changed the spec. and made a batch rerun, the instability in OC mode ithink is a secundary outcome, the primary goal was to lower energy consumption? or cheaper chip? Any way the first one is more stable and could probably run higher than 750 is changed manualy.
We can also see that there is 3 boards, total 48 chips (vs. mini's 12) so its a "full version", it also says it runs 42ksol/s normal and 44kSol/s in the supposed "Turbo mode"


 


Has anyone taken delivery of a Z9 Big yet ?... Can you post what and if it will OC Please when you get it?  
Thanks

I'm not sure that they have shipped yet -- but should "soon" per their support. As of yesterday there was not a certificate of conformity posted -- they might actually need that in order to ship through US customs, .. not sure.

-j
Yes they cant be far away.. that is a beautiful mining setup...well done..
Take a look at mine i am just waiting for 3 more to arrive on Tuesday https://twitter.com/mrtraderman


Title: Re: Antminer Z9 mini overclocked
Post by: mikxxy on September 02, 2018, 04:06:30 PM
my 12 batch 1s can all run at 750Mhz and in my setup range from a stable 63C to 74C across them; a lot of variance.
2 of mine run fastest at 725Mhz.

All of them run "best" at 700Mhz or less -- best is a combination of heat vs. hashrate.

At max (750), mine do a stable 192kSol/sec with variance up to ~195.

At 700Mhz, mine do a stable 186kSol/sec with temps in a managable 72C or less.

My setup: https://imgur.com/a/6SBUt2S

(copying my setup as is would be a bad idea for reasons I don't have time to get into at the moment, but you cannot egress 1000cfm out of your house without other problems...).

The most ideal configuration is for 650Mhz across all of mine -- they are stable and cool with minimal (relative) airflow across them (and thus minimal impact to the house environment).

My point here is... even though I can make the batch1s not crash at 750Mhz, that isn't their ideal point. Any unit alone, I can get to 725/750, but when  I combine them all together and their heat impacts each other, 650-700 is ideal with minimal 'loss' in hashrate.
... Which puts them in line with the ~681mhz folk are seeing now.

Once my Z9s come in, I'll see how those chips work in comparison....

-j

Very nice set up :) :) :)


Title: Re: Antminer Z9 mini overclocked
Post by: KrK27 on September 02, 2018, 08:18:22 PM
One of my Z9 mini fails at 675, max for good works is 650.

At 650 i see some rejects, after 4hours 24 reject... mining on Antpool,

that is normal?


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 02, 2018, 11:18:40 PM
One of my Z9 mini fails at 675, max for good works is 650.

At 650 i see some rejects, after 4hours 24 reject... mining on Antpool,

that is normal?
normal read all the previous comments.. i have one that will not go past 643


Title: Re: Antminer Z9 mini overclocked
Post by: Warlockks on September 03, 2018, 01:11:14 AM
For some reason, I was not able to get the Google Chrome trick to work.  I change the value, click save, and it comes right back up at 500mhz.

However, what did work was to save the configuration file from my first batch Z9, and upload it to the new Z9.  Just select what frequency you want before saving the config file on the first batch machine, then upload it to the second batch machine.  The second batch machine will mine at the frequency selected.

First batch machine has been running at 750mhz since day one.   Second batch machine would not hash at 750, so I'm hashing now at 675 with about 15Khash.



Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on September 03, 2018, 09:44:58 AM
In what mining pool you are mining with your z9 mini. I used to work with suprnova and mining pool hub. Suprnova not support Asic
any tips ?


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 03, 2018, 10:27:58 AM
In what mining pool you are mining with your z9 mini. I used to work with suprnova and mining pool hub. Suprnova not support Asic
any tips ?

Fron my experience Flypool (https://zcash.flypool.org/ (https://zcash.flypool.org/)) pays out the best if mining ZCash. SlushPool (https://slushpool.com (https://slushpool.com)) is good too. Both of these are rock solid stability wise.

I generally mine at Prohashing (https://prohashing.com) because it lets me choose any payout coin I like and their profitability seems equivalent to the rest of the pools despite their 5% fee. You'll DEFINITELY need a backup pool if mining with them because their servers give problems once in a while.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 03, 2018, 10:45:37 AM
In what mining pool you are mining with your z9 mini. I used to work with suprnova and mining pool hub. Suprnova not support Asic
any tips ?

Fron my experience Flypool (https://zcash.flypool.org/ (https://zcash.flypool.org/)) pays out the best if mining ZCash. SlushPool (https://slushpool.com (https://slushpool.com)) is good too. Both of these are rock solid stability wise.

I generally mine at Prohashing (https://prohashing.com) because it lets me choose any payout coin I like and their profitability seems equivalent to the rest of the pools despite their 5% fee. You'll DEFINITELY need a backup pool if mining with them because their servers give problems once in a while.

I am on Mining Pool Hub.. Seems fine.. Have you tried that?... its a solid service too.
One member mentioned that earnings were lower than expected using whattomine calculator... any comments anyone?...


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 03, 2018, 10:58:42 AM
In what mining pool you are mining with your z9 mini. I used to work with suprnova and mining pool hub. Suprnova not support Asic
any tips ?

Fron my experience Flypool (https://zcash.flypool.org/ (https://zcash.flypool.org/)) pays out the best if mining ZCash. SlushPool (https://slushpool.com (https://slushpool.com)) is good too. Both of these are rock solid stability wise.

I generally mine at Prohashing (https://prohashing.com) because it lets me choose any payout coin I like and their profitability seems equivalent to the rest of the pools despite their 5% fee. You'll DEFINITELY need a backup pool if mining with them because their servers give problems once in a while.

I am on Mining Pool Hub.. Seems fine.. Have you tried that?... its a solid service too.
One member mentioned that earnings were lower than expected using whattomine calculator... any comments anyone?...

I've tried miningpoolhub and they're fine. Two problems I have with them is:
a) Statistics reporting is HORRIBLE. Don't like their dashboard - it has nothing except a silly meter type thing indicating the "rough" hashrate for your miners. Doesn't update frequently enough either.
b) Conversion to the coin of your choice is not "real time". At Prohashing the mined coin is converted to the payout coin at the time of mining - and credit given to you is as of that time. At Miningpoolhub, they batch convert it some time in the future - and your payout depends on the value of the mined and the payout coins at that time in the future.


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 03, 2018, 10:59:52 AM
Hello all,

Noob Antminer here, but been mining GPU's since Jan. Thought i would jump on the ASIC bandwagon and invest in a Z9Mini using some of the GPU profits. Been reading this thread and it seems i am one of the Lucky Batch 2 owners, in having a a Z9M that can be overclocked and have mine steady @681 churning out 14.75 on the miner with the pool showing 16.

My question(s) to the learned Antminers out there, is i am using Antpool, but not read of anyone else using this pool? Is this a good pool? or would you recommend Anything but Antpool?

Question 2: Considering buying 3 more Z9 Minis to make 4 in total or Buy into a Big Boy Full Z9. I am aware of the prices, aware of the PSU's needed, and aware of the stinging Customs charge to UK for my 1 mini (£155, Ouch). So all in all, the Big Boy Z9 looks not that far off the price of 3x Minis. What would you guys recommend? 1x Z9? or 3x Z9Mini's?

Thanks for the Advice :)


Title: Re: Antminer Z9 mini overclocked
Post by: Oakey22 on September 03, 2018, 12:18:55 PM
I got one of the batch 1 z9 mini and it's nearly at ROI already, can't believe I didn't just go all in and buy as many as I could afford.

Anyone else gutted they missed the boat on this one?


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 03, 2018, 12:28:37 PM
In what mining pool you are mining with your z9 mini. I used to work with suprnova and mining pool hub. Suprnova not support Asic
any tips ?

Fron my experience Flypool (https://zcash.flypool.org/ (https://zcash.flypool.org/)) pays out the best if mining ZCash. SlushPool (https://slushpool.com (https://slushpool.com)) is good too. Both of these are rock solid stability wise.

I generally mine at Prohashing (https://prohashing.com) because it lets me choose any payout coin I like and their profitability seems equivalent to the rest of the pools despite their 5% fee. You'll DEFINITELY need a backup pool if mining with them because their servers give problems once in a while.

I am on Mining Pool Hub.. Seems fine.. Have you tried that?... its a solid service too.
One member mentioned that earnings were lower than expected using whattomine calculator... any comments anyone?...

I've tried miningpoolhub and they're fine. Two problems I have with them is:
a) Statistics reporting is HORRIBLE. Don't like their dashboard - it has nothing except a silly meter type thing indicating the "rough" hashrate for your miners. Doesn't update frequently enough either.
b) Conversion to the coin of your choice is not "real time". At Prohashing the mined coin is converted to the payout coin at the time of mining - and credit given to you is as of that time. At Miningpoolhub, they batch convert it some time in the future - and your payout depends on the value of the mined and the payout coins at that time in the future.
I agree with your views on MPH.. On Prohashing do you just put the one algo in and Prohashing converts all mined coins to BTC and deposits BTC.. Or do we need each and individual wallets?... Cant see much about algo for ASIC.. thanks


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 03, 2018, 01:24:40 PM
htautosjay, may i ask kindly to either PM me the settings to put into the miner for the Miningpoolhub, as mentioned above i am a complete noob at this ASIC stuff.

many Thanks

Wasp0


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 03, 2018, 01:42:13 PM
htautosjay, may i ask kindly to either PM me the settings to put into the miner for the Miningpoolhub, as mentioned above i am a complete noob at this ASIC stuff.

many Thanks

Wasp0
sure il pm you now and help you set it up..


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 03, 2018, 01:43:13 PM
htautosjay, may i ask kindly to either PM me the settings to put into the miner for the Miningpoolhub, as mentioned above i am a complete noob at this ASIC stuff.

many Thanks

Wasp0
sure il pm you now and help you set it up..

Huge Thanks, i tried to PM you, but as a Noob, i can't :(


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 03, 2018, 01:46:54 PM
htautosjay, may i ask kindly to either PM me the settings to put into the miner for the Miningpoolhub, as mentioned above i am a complete noob at this ASIC stuff.

many Thanks

Wasp0
sure il pm you now and help you set it up..

Huge Thanks, i tried to PM you, but as a Noob, i can't :(
I have just changed my settings so u can now :)


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 03, 2018, 02:01:20 PM
htautosjay,

can't reply to your PM, as a noob i am limited to 1 PM per Hour!!??!!

But just Zec at the moment.


Title: Re: Antminer Z9 mini overclocked
Post by: starmax on September 03, 2018, 02:10:04 PM
Just got my batch 2 Mini yesterday.  Ran it at 650 Mhz all night and had no HW errors and minimal pool rejects (using nanopool).  Getting around 14.8Ksol/s.  What's odd is I changed the cgminer.conf to set the speed to something higher but anything higher than 650 just gives me a really low hash rate, around 4.5Ksol/s, even 655 Mhz.  No HW errors, just slow hashing.  Anyone else experience this?



Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 03, 2018, 02:20:41 PM
htautosjay,

can't reply to your PM, as a noob i am limited to 1 PM per Hour!!??!!

But just Zec at the moment.
Ok i guess you cant open my PM either for 1 hour.. so ZEC
URL europe.equihash-hub.miningpoolhub.com:20570
your worker name >> you need to set up hub workers and a worker in the ZEC page on MPH and select EQUIHASH In hub workers


Title: Re: Antminer Z9 mini overclocked
Post by: yrk1957 on September 03, 2018, 02:40:15 PM
Just got my batch 2 Mini yesterday.  Ran it at 650 Mhz all night and had no HW errors and minimal pool rejects (using nanopool).  Getting around 14.8Ksol/s.  What's odd is I changed the cgminer.conf to set the speed to something higher but anything higher than 650 just gives me a really low hash rate, around 4.5Ksol/s, even 655 Mhz.  No HW errors, just slow hashing.  Anyone else experience this?



4.5 means two of the boards dropped out, hence you get a third of the hash rate.


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on September 03, 2018, 02:41:13 PM
In what mining pool you are mining with your z9 mini. I used to work with suprnova and mining pool hub. Suprnova not support Asic
any tips ?

Fron my experience Flypool (https://zcash.flypool.org/ (https://zcash.flypool.org/)) pays out the best if mining ZCash. SlushPool (https://slushpool.com (https://slushpool.com)) is good too. Both of these are rock solid stability wise.

I generally mine at Prohashing (https://prohashing.com) because it lets me choose any payout coin I like and their profitability seems equivalent to the rest of the pools despite their 5% fee. You'll DEFINITELY need a backup pool if mining with them because their servers give problems once in a while.

I am on Mining Pool Hub.. Seems fine.. Have you tried that?... its a solid service too.
One member mentioned that earnings were lower than expected using whattomine calculator... any comments anyone?...

I've tried miningpoolhub and they're fine. Two problems I have with them is:
a) Statistics reporting is HORRIBLE. Don't like their dashboard - it has nothing except a silly meter type thing indicating the "rough" hashrate for your miners. Doesn't update frequently enough either.
b) Conversion to the coin of your choice is not "real time". At Prohashing the mined coin is converted to the payout coin at the time of mining - and credit given to you is as of that time. At Miningpoolhub, they batch convert it some time in the future - and your payout depends on the value of the mined and the payout coins at that time in the future.

I wil try out flypool. I now mine with MPH but i never try the auto exchange.


Title: Re: Antminer Z9 mini overclocked
Post by: starmax on September 03, 2018, 02:45:18 PM
4.5 means two of the boards dropped out, hence you get a third of the hash rate.

Interesting, on the Ant Miner web console, it says all 3 are online, just hashing at 1.5k each...  Most folks were reporting they would see HW errors or the 3rd card going to 0 when their overclock was too high, so I was assuming this was slightly different.


Title: Re: Antminer Z9 mini overclocked
Post by: yrk1957 on September 03, 2018, 03:44:18 PM
4.5 means two of the boards dropped out, hence you get a third of the hash rate.

Interesting, on the Ant Miner web console, it says all 3 are online, just hashing at 1.5k each...  Most folks were reporting they would see HW errors or the 3rd card going to 0 when their overclock was too high, so I was assuming this was slightly different.

Well, in my case I would see 2 hashing at 0. So maybe a slightly different scenarios.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 03, 2018, 05:42:53 PM
I mine Zhash.pro (zcash.zhash.pro) with my z9mini.
The pool is new so they start a prom. 0%fee right now
So I try to mine with it.

0%reject and lots of help in discord channel
I like it... i will give it a go... How often does it pay out?
thanks


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 04, 2018, 06:15:11 AM
I agree with your views on MPH.. On Prohashing do you just put the one algo in and Prohashing converts all mined coins to BTC and deposits BTC.. Or do we need each and individual wallets?... Cant see much about algo for ASIC.. thanks

Prohashing currently has 7 supported algorithms. I connect all my miners there. My S9's on SHA256, L3+'s on Scrypt, Z9's on Equihash and rigs on Ethash, Neoscrypt and Lyra2REv2.

Reason I have everything connected there is because they have a nifty feature where you can put in your electricity cost and watt consumption into the password field for the miners and they will automatically generate a graph showing your consumption and profit per day. This is very important for me cuz I can see at a glance that I'm not mining at a loss overall on any given day. (I purposely mine scrypt though it's at a loss right now - I make up for the loss using my equihash Z9 hashrate).

Another cool feature they have is payout. They have about 50 coins and you can choose payouts in any ratio you like. All you need to do is specify a payout address for each coin you want a payout in - and it'll be done. It doesn't matter what algorithm you mine - you'll receive payout as you like. See a sample screenshot below (Note that this is a free imgur account so bandwidth may be limited. If you don't see the image, that's probably why).

https://i.imgur.com/cTQ6RNk.jpg

They merge mine each algorithm and are good with profits. Despite their 5% fee they occasionally manage to beat other pools in profitability.

BUT.... IMPORTANT NOTE: This is a small operation run by two extremely hard working brothers in the U.S. So:
  • They don't have redundancy and failsafe's like other large pools do. Their servers crash once every often - so you MUST HAVE fallback pools configured. If you do, then it's not much of an issue since failures are never more than 15-20 mins on average, about once a week.
  • They insist on your identification if your income exceeds $600 to comply with U.S. laws. I wasn't about to do that and just mined with them to try it for a bit but found them so (potentially) good that submitted my details and continued mining with them.

If they clean up their server reliability issues, they'll easily be one of the best pools out there.



Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 04, 2018, 11:30:00 AM
Can anyone advise please? or comment?

I have a batch 2 Z9 Mini overclocked to 650, so not pushing to much, getting all three cards hashing and an average 14.5. No HW Errors....

However, i get approx 30 rejected shares in say, a 24 hour period?

Is this good/bad? Is this to be expected if overclocking? Should i reduce overclock?

Thanks Guys


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 01:40:53 PM
Just unpacked another Z9 Mini. Overclocked it to 650.. and board 2 has a chip that blows out (00x0) rebooted it and 2 mins in same again....
Just droped the freq to 500 runs fine.. popped it up to 625 and still fine for now..... board 2 is very lazy 3.61

Update just blown out again 00x0 at 625
reduced to 600


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 04, 2018, 01:45:51 PM
Just unpacked another Z9 Mini. Overclocked it to 650.. and board 2 has a chip that blows out (00x0) rebooted it and 2 mins in same again....
Just droped the freq to 500 runs fine.. popped it up to 625 and still fine for now..... board 2 is very lazy 3.61

I am reading other sources that report exactly the same as you, and this is putting me off getting another 2 or 3 of these. I think i will go for the Z9 big boy one next.

May i ask on your other mini's do you get any 'Rejected' shares? As a newb to Asic mining, i am used to GPU mining, and avoid these rejected shares, by dropping the offending card(s) a tad in the overclocking specs.

Not sure in ASIC mining if these are the norm as the hash rate is huge compared to GPU's, or should i throttle down a bit?


Title: Re: Antminer Z9 mini overclocked
Post by: kahc on September 04, 2018, 01:46:51 PM
Can anyone advise please? or comment?

I have a batch 2 Z9 Mini overclocked to 650, so not pushing to much, getting all three cards hashing and an average 14.5. No HW Errors....

However, i get approx 30 rejected shares in say, a 24 hour period?

Is this good/bad? Is this to be expected if overclocking? Should i reduce overclock?

Thanks Guys

Whats your ratio of accepted/rejected?
I consider anything below 5% as good.
Rejected shares can be caused by internet latency or pool side issue, not solely because of OC.

One of my Z9 mini OC to 700 has been running for 4 days.
Accepted/Rejected are 56564/55 which translates to less than 0.1%.
   


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 01:51:41 PM
Just unpacked another Z9 Mini. Overclocked it to 650.. and board 2 has a chip that blows out (00x0) rebooted it and 2 mins in same again....
Just droped the freq to 500 runs fine.. popped it up to 625 and still fine for now..... board 2 is very lazy 3.61

I am reading other sources that report exactly the same as you, and this is putting me off getting another 2 or 3 of these. I think i will go for the Z9 big boy one next.

May i ask on your other mini's do you get any 'Rejected' shares? As a newb to Asic mining, i am used to GPU mining, and avoid these rejected shares, by dropping the offending card(s) a tad in the overclocking specs.

Not sure in ASIC mining if these are the norm as the hash rate is huge compared to GPU's, or should i throttle down a bit?
just a few rejected not many like 3 or 4 an hour


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 04, 2018, 01:56:47 PM
Thanks Guys....

Hours run since last reboot (Change Pool) is 21 hrs, Accepted 7685, rejected 30, so i make that around .39%, so guessing that is good/ok!

I am used to GPU mining with lower hashing rates, and i avoid any rejected shares.

Thanks again for Noob help ;-)


Title: Re: Antminer Z9 mini overclocked
Post by: starmax on September 04, 2018, 02:17:20 PM
Running at 650 MHz, over the past 23 hours, 46,505 accepted shares, 54 rejected (0.116%) over on Nanopool.

Rejects can have lots of variables, I used to get lots of rejects on my Vegas when I ran XMR-Stak, but after switching to SRBMiner I get almost none.  Same thing goes for pools.  When I mine ETH on my 1070 rig at nicehash I get lots of rejects, none at Nanopool.


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 04, 2018, 02:30:41 PM
Running at 650 MHz, over the past 23 hours, 46,505 accepted shares, 54 rejected (0.116%) over on Nanopool.

Rejects can have lots of variables, I used to get lots of rejects on my Vegas when I ran XMR-Stak, but after switching to SRBMiner I get almost none.  Same thing goes for pools.  When I mine ETH on my 1070 rig at nicehash I get lots of rejects, none at Nanopool.


WOW! am i doing something wrong? you get 46K shares in 23 hours? are you on a Big boy Z9 or is my Mini really really underperforming?


Title: Re: Antminer Z9 mini overclocked
Post by: starmax on September 04, 2018, 02:48:25 PM
It’s just a mini, but Maybe it’s because I’m using nano pool, they just added support for the Z9 so maybe there’s less people over there. Not sure, but you may want to try them out. I have use them for ETH and XMR for quite a while and been very happy with them.


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 04, 2018, 02:53:55 PM
It’s just a mini, but Maybe it’s because I’m using nano pool, they just added support for the Z9 so maybe there’s less people over there. Not sure, but you may want to try them out. I have use them for ETH and XMR for quite a while and been very happy with them.

Even so, a different pool surely would not give you that much of a difference, that's like 7 times the shares i am getting?? Just WOW! How much you earning a day? (USD)


Title: Re: Antminer Z9 mini overclocked
Post by: starmax on September 04, 2018, 03:00:31 PM
Maybe something is goofy with the antminer reporting then, I am earning about 0.12 ZEC/day.

Edit: just checked my stats at Nanopool and they think I have 15k-16k shares/hour so I don't know WTF is going on...  Earnings seem on par with most people though.


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 04, 2018, 03:16:54 PM
Yes that is on par for a Mini.

I was for a time Hugely Jealous of your 46K shares per day? Maybe it is my pool that is not reporting right :) end of the day as long as we are earning who cares about the numbers ;)


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 03:33:56 PM
If we crack open the firmware, can we adjust the individual board frequency ??


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 04, 2018, 04:15:35 PM
If we crack open the firmware, can we adjust the individual board frequency ??

If you have a Batch one mini that is over clocked, set this to the freq you want the new one set to, save config file, then upload that config file into the batch 2 mini.

tinkering with Firmware is WOW! spookily freakingly scary!


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 04, 2018, 04:32:17 PM
Just got my batch 2 Mini yesterday.  Ran it at 650 Mhz all night and had no HW errors and minimal pool rejects (using nanopool).  Getting around 14.8Ksol/s.  What's odd is I changed the cgminer.conf to set the speed to something higher but anything higher than 650 just gives me a really low hash rate, around 4.5Ksol/s, even 655 Mhz.  No HW errors, just slow hashing.  Anyone else experience this?


I noticed the Z9 mini seems to hash slowly unless you select speeds in specific increments. (usually 6 mhz) the only reason I know this is because after I experienced the same thing as you on my manually adjusted batch 2 mini, I looked at the OC options on my batch 1 mini and it looks like they usually let you select in increments of 6 or 7 mhz. I don't really know why but I'm guessing it's a memory timing thing. Try adjusting with the following exact increments until you get stability. 700, 693, 687, 681, 675, 668, 662, 650, etc.


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 04, 2018, 04:34:32 PM
Just got my batch 2 Mini yesterday.  Ran it at 650 Mhz all night and had no HW errors and minimal pool rejects (using nanopool).  Getting around 14.8Ksol/s.  What's odd is I changed the cgminer.conf to set the speed to something higher but anything higher than 650 just gives me a really low hash rate, around 4.5Ksol/s, even 655 Mhz.  No HW errors, just slow hashing.  Anyone else experience this?


I noticed the Z9 mini seems to hash slowly unless you select speeds in specific increments. (usually 6 mhz) the only reason I know this is because after I experienced the same thing as you on my manually adjusted batch 2 mini, I looked at the OC options on my batch 1 mini and it looks like they usually let you select in increments of 6 or 7 mhz. I don't really know why but I'm guessing it's a memory timing thing. Try adjusting with the following exact increments until you get stability. 700, 693, 687, 681, 675, 668, 662, 650, etc.

Is that starting at 700 and going downwards or starting at 600 and going up? or does not make a difference?


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 04, 2018, 04:39:11 PM
Just got my batch 2 Mini yesterday.  Ran it at 650 Mhz all night and had no HW errors and minimal pool rejects (using nanopool).  Getting around 14.8Ksol/s.  What's odd is I changed the cgminer.conf to set the speed to something higher but anything higher than 650 just gives me a really low hash rate, around 4.5Ksol/s, even 655 Mhz.  No HW errors, just slow hashing.  Anyone else experience this?


I noticed the Z9 mini seems to hash slowly unless you select speeds in specific increments. (usually 6 mhz) the only reason I know this is because after I experienced the same thing as you on my manually adjusted batch 2 mini, I looked at the OC options on my batch 1 mini and it looks like they usually let you select in increments of 6 or 7 mhz. I don't really know why but I'm guessing it's a memory timing thing. Try adjusting with the following exact increments until you get stability. 700, 693, 687, 681, 675, 668, 662, 650, etc.

Is that starting at 700 and going downwards or starting at 600 and going up? or does not make a difference?
It doesn't matter technically. but I would Just start from the highest and as soon as 1 hashboard crashes restart and drop it to the next highest and repeat so you can quickly find the maximum stable. It may take 12-24 hours until it faults out so don't assume it's stable after just a few minutes.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 04:47:59 PM
If we crack open the firmware, can we adjust the individual board frequency ??

If you have a Batch one mini that is over clocked, set this to the freq you want the new one set to, save config file, then upload that config file into the batch 2 mini.

tinkering with Firmware is WOW! spookily freakingly scary!
I have a batch 1 Z9 Mini Il give it a wizz
report back


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 04:57:22 PM
If we crack open the firmware, can we adjust the individual board frequency ??

If you have a Batch one mini that is over clocked, set this to the freq you want the new one set to, save config file, then upload that config file into the batch 2 mini.

tinkering with Firmware is WOW! spookily freakingly scary!
I have a batch 1 Z9 Mini Il give it a wizz
report back
no difference, i uploaded the May 18 firmware onto my batch 2 z9's on arrival.. worth a shot.. but still dropping a chip on board 2 


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 05:15:06 PM
Just had another Z9 Mini that arrived today have a chip blow out (x000) when Oc'd to 668 seems that the late batch 2 machines dont just stop hashing when Oc'd too much they loose a chip


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 04, 2018, 05:27:05 PM
Just had another Z9 Mini that arrived today have a chip blow out (x000) when Oc'd to 668 seems that the late batch 2 machines dont just stop hashing when Oc'd too much they loose a chip

Wow man feel sorry for you. Can you get a replacement board?


Title: Re: Antminer Z9 mini overclocked
Post by: TGJ on September 04, 2018, 07:18:17 PM
Just had another Z9 Mini that arrived today have a chip blow out (x000) when Oc'd to 668 seems that the late batch 2 machines dont just stop hashing when Oc'd too much they loose a chip
When you say “have a chip blow out”, do you mean the board is fried?


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 07:39:56 PM
Just had another Z9 Mini that arrived today have a chip blow out (x000) when Oc'd to 668 seems that the late batch 2 machines dont just stop hashing when Oc'd too much they loose a chip
When you say “have a chip blow out”, do you mean the board is fried?
no just goes from 0000 to 0x000 not burnt out just stopped working


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 07:41:51 PM
Just had another Z9 Mini that arrived today have a chip blow out (x000) when Oc'd to 668 seems that the late batch 2 machines dont just stop hashing when Oc'd too much they loose a chip

Wow man feel sorry for you. Can you get a replacement board?
thing is it works ar 500 freq fine ... just when i OC it it fails, Bitmain will want a screenshot showing the failure.. and i cant give them a overlocked screenshot ...emmmmmmm  ??? :-\


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 07:43:42 PM
Just had another Z9 Mini that arrived today have a chip blow out (x000) when Oc'd to 668 seems that the late batch 2 machines dont just stop hashing when Oc'd too much they loose a chip

Wow man feel sorry for you. Can you get a replacement board?
thing is it works ar 500 freq fine ... just when i OC it it fails, Bitmain will want a screenshot showing the failure.. and i cant give them a overlocked screenshot ...emmmmmmm  ??? :-\
If there is a way to set the freq of the boards individually say board 1 at 675 board 2 at 550 and board 3 at 675 ??... any ideas??


Title: Re: Antminer Z9 mini overclocked
Post by: shehz81 on September 04, 2018, 08:32:51 PM
Just had another Z9 Mini that arrived today have a chip blow out (x000) when Oc'd to 668 seems that the late batch 2 machines dont just stop hashing when Oc'd too much they loose a chip

Wow man feel sorry for you. Can you get a replacement board?
thing is it works ar 500 freq fine ... just when i OC it it fails, Bitmain will want a screenshot showing the failure.. and i cant give them a overlocked screenshot ...emmmmmmm  ??? :-\
If there is a way to set the freq of the boards individually say board 1 at 675 board 2 at 550 and board 3 at 675 ??... any ideas??

Did you come up with any solution yet?

I'm having similar issue. I haven't looked hard enough to see if one of the chip fails but when I over clocked my second batch to 668, it would give me decent hash rate between 14-16k for few hours but then the hash rate would drop to 9k. So I'm guessing it must be the chip failure. This happened multiple times and I started with 700. Now I have further reduced it to 650. Crossing my fingers. Interestingly to OC, I just had to pick the frequency from the drop down options.

My Second z9 from the second batch, I had to overclock differently because the option wasn't there and that has been more stable at 675 frequency than the one which had the drop down option to change the frequency!

 


Title: Re: Antminer Z9 mini overclocked
Post by: fliperone on September 04, 2018, 08:41:46 PM
If we crack open the firmware, can we adjust the individual board frequency ??

If you have a Batch one mini that is over clocked, set this to the freq you want the new one set to, save config file, then upload that config file into the batch 2 mini.

tinkering with Firmware is WOW! spookily freakingly scary!
I have a batch 1 Z9 Mini Il give it a wizz
report back
no difference, i uploaded the May 18 firmware onto my batch 2 z9's on arrival.. worth a shot.. but still dropping a chip on board 2 

Hey htautosjay. Wanted to ask you if you had a copy of the first batch firmware from bitmain support site? I did not DL it back then and now they replaced it. PM me if you willing to share mate. Lets see if there is some difference in Voltage settings that makes it less stable. Although Im afraid its simply lower quality chips as I measured power draw for 4x Z9mini from 1st batch @700 and now 4x 2nd batch @687. Results are 1493 W vs. 1530 W. There might be a small diff due to different PSU eff but never that big!


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 09:02:51 PM
If we crack open the firmware, can we adjust the individual board frequency ??

If you have a Batch one mini that is over clocked, set this to the freq you want the new one set to, save config file, then upload that config file into the batch 2 mini.

tinkering with Firmware is WOW! spookily freakingly scary!
I have a batch 1 Z9 Mini Il give it a wizz
report back
no difference, i uploaded the May 18 firmware onto my batch 2 z9's on arrival.. worth a shot.. but still dropping a chip on board 2  

Hey htautosjay. Wanted to ask you if you had a copy of the first batch firmware from bitmain support site? I did not DL it back then and now they replaced it. PM me if you willing to share mate. Lets see if there is some difference in Voltage settings that makes it less stable. Although Im afraid its simply lower quality chips as I measured power draw for 4x Z9mini from 1st batch @700 and now 4x 2nd batch @687. Results are 1493 W vs. 1530 W. There might be a small diff due to different PSU eff but never that big!
Deffo yes mate il pm you now.. i have batch 1 firmware standard and batch 1 from my 17 sol batch 1 Z9.
I have been searching through the firmware for voltage, but cant find it... also in the kernel log it says for some weird reason set freq to 750.. This is even when i have the freq set at 600... no where have i set freq to 750 but the firmware is doing some strange things.. i think its either temp or as you say power..
 


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 04, 2018, 09:06:09 PM
firmware:
Batch 1
z9 mini

File: Antminer-Z9-Mini-201805262047-500M.tar.gz (http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz)
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)


Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 04, 2018, 09:11:01 PM
firmware:
Batch 1
z9 mini

https://service.bitmain.com/support/download?product=Antminer%20Z9%20mini

direct link:
https://file11.bitmain.com/shop-product/firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

Hope this will help anyone!

I don't have batch 2 yet!


Yep, that's the (May 2018)  Z9 Mini Firmware.. If you just flash that onto a miner that has the balance feature it has the drop down box like batch 1
Cool mate good add  :)


Title: Re: Antminer Z9 mini overclocked
Post by: rackserver on September 04, 2018, 09:33:19 PM
anybody knows how to set the voltage for the ASIC chips? (for all of them at the same time, or per board, or per chip?)
thanks guys


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 04, 2018, 09:40:30 PM
is it possible to unplug 2 boards and start with only one board at a time?

that way you could try to find out what each board(PCB) can do?

Don't know if this could help somehow?


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 05, 2018, 06:58:38 AM
firmware:
Batch 1
z9 mini

https://service.bitmain.com/support/download?product=Antminer%20Z9%20mini

direct link:
https://file11.bitmain.com/shop-product/firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

Hope this will help anyone!

I don't have batch 2 yet!



Brilliant, thanks imine2. Have not worked out how to give 'Rep' or what ever it is called on here yet, but when i do i will 'Rep' you. Us Newb's can't seem to do much on here :(


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 07:06:07 AM
is it possible to unplug 2 boards and start with only one board at a time?

that way you could try to find out what each board(PCB) can do?

Don't know if this could help somehow?
Its not advisable to plug powered connectors into yoiur boards , it can give them a spark that could pop something. text book start up is PSU off plug in boards and power up machine then plug in control board.. least i think  ::) that's how the Bitmain site says to do it.. i just personally plug all the connectors in then power up the PSU


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 05, 2018, 07:09:07 AM
is it possible to unplug 2 boards and start with only one board at a time?

that way you could try to find out what each board(PCB) can do?

Don't know if this could help somehow?
Its not advisable to plug powered connectors into yoiur boards , it can give them a spark that could pop something. text book start up is PSU off plug in boards and power up machine then plug in control board.. least i think  ::) that's how the Bitmain site says to do it.. i just personally plug all the connectors in then power up the PSU

Yes that's correct, i work in IT, and that is pretty much standard way to power any IT equipment. Thinking about it, it is pretty much standard to use ANY electrical equipment, but more so in any IT gear as the circuit boards are hypersensitive to voltage spikes/surges.


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 05, 2018, 07:15:45 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 07:54:54 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 08:02:11 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC
Just seen Bitmain yes... price dropping.. never a good sign.. the Z9 Mini's bet they will be $600 soon


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 05, 2018, 08:35:49 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC

Reading on tinterweb, it is locked to Balance as these Mini's are, but the Google workaround seems to be working on Big Bruv Z9. I have just placed an order for one. Ships late Sept.


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 05, 2018, 08:42:40 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC
Just seen Bitmain yes... price dropping.. never a good sign.. the Z9 Mini's bet they will be $600 soon

I am a bit stuck for which coin to mine... Looking for best returns consistently 
1 Autoswitch on MPH?
2 Zclassic on MPH?
3 Zec on Antpool?
4 Zen on Prohash? or MPH?
5 Zec on Slushpool?


I love the idea of auto switching, if you decide to go that way PLEASE PM me again with a idiots guide on how to...... (Like you did last time). Really very many thanks!


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 08:44:29 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC

Reading on tinterweb, it is locked to Balance as these Mini's are, but the Google workaround seems to be working on Big Bruv Z9. I have just placed an order for one. Ships late Sept.
What I know about the Z9 Biggie is. its like 4 mini's on one unit.. as we all know.. but the unknown is the power hook up.. i understand that the It has 6 Board connectors land 1x control the hash boards are linked in series to the boards below.. so we know that one PSU will power 2 x Z9 Mini's Overclocked.. but the unknown is can we hook up 2 PSU's to 1 x Z9 biggie? Overclocked as one PSU will not power 4 x overclocked machines


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 08:50:04 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC
Just seen Bitmain yes... price dropping.. never a good sign.. the Z9 Mini's bet they will be $600 soon

I am a bit stuck for which coin to mine... Looking for best returns consistently 
1 Autoswitch on MPH?
2 Zclassic on MPH?
3 Zec on Antpool?
4 Zen on Prohash? or MPH?
5 Zec on Slushpool?


I love the idea of auto switching, if you decide to go that way PLEASE PM me again with a idiots guide on how to...... (Like you did last time). Really very many thanks!
Autoswitch is easy to set up.. Just put 17023 after the colon : in the URL for MPH... and dont forget to set up your deposit wallets In each coin ZEN ZEC ZCL and set up workers in each Coin too and where you set up Hub workers in the main menu set Account's Default Job to Equihash


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 05, 2018, 08:50:17 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC

Reading on tinterweb, it is locked to Balance as these Mini's are, but the Google workaround seems to be working on Big Bruv Z9. I have just placed an order for one. Ships late Sept.
What I know about the Z9 Biggie is. its like 4 mini's on one unit.. as we all know.. but the unknown is the power hook up.. i understand that the It has 6 Board connectors land 1x control the hash boards are linked in series to the boards below.. so we know that one PSU will power 2 x Z9 Mini's Overclocked.. but the unknown is can we hook up 2 PSU's to 1 x Z9 biggie? Overclocked as one PSU will not power 4 x overclocked machines


for just over a $100 i invested in another PSU from Bitmain to power the Z9.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 08:52:06 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC

Reading on tinterweb, it is locked to Balance as these Mini's are, but the Google workaround seems to be working on Big Bruv Z9. I have just placed an order for one. Ships late Sept.
What I know about the Z9 Biggie is. its like 4 mini's on one unit.. as we all know.. but the unknown is the power hook up.. i understand that the It has 6 Board connectors land 1x control the hash boards are linked in series to the boards below.. so we know that one PSU will power 2 x Z9 Mini's Overclocked.. but the unknown is can we hook up 2 PSU's to 1 x Z9 biggie? Overclocked as one PSU will not power 4 x overclocked machines

That should do it.. just plug one PSU into one bank and the other in the other bank..

for just over a $100 i invested in another PSU from Bitmain to power the Z9.
That should do it.. just plug one PSU into one bank and the other in the other bank..


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 05, 2018, 08:55:03 AM
is it possible to unplug 2 boards and start with only one board at a time?

that way you could try to find out what each board(PCB) can do?

Don't know if this could help somehow?
Its not advisable to plug powered connectors into yoiur boards , it can give them a spark that could pop something. text book start up is PSU off plug in boards and power up machine then plug in control board.. least i think  ::) that's how the Bitmain site says to do it.. i just personally plug all the connectors in then power up the PSU

Yes that's correct, i work in IT, and that is pretty much standard way to power any IT equipment. Thinking about it, it is pretty much standard to use ANY electrical equipment, but more so in any IT gear as the circuit boards are hypersensitive to voltage spikes/surges.


I was thinking like this:
1. No power connected from wall
2. plug in power to system board and ONLY one PCB.
3. If needed to be able to start with only one PCB than also remove communicationcords for other PCBs.
4. Plug IN powercord in wall and start z9 mini
5. check log how system communicate with that PCB
6. check how much its possible to OC that perticular PCB
7. ssh in and use command 'poweroff' (without the ' ' )
8. let it cool off for couple minutes perhaps
9. remove powercord from wall
10. repeat 1-9 with each PCB

11. repeat 1-9 but with 2 PCBs and check logs

I remember reading about Innosilicon A9 zmaster that when SSH'ing in as root if wanted to restart than type 'systemctl restart cgminer' (without the ' ' )

I do not know if this will give us any more useful info but this was what I was thinking!

It also seems that PCB 1 (chain 1) is the board that get least cooling compared to PCB 2 and 3 if I look at screenshots from other miners and my own z9 mini.

If guarantee voided its also possible to remove power from wall and switch place between PCB 1 and/or 2 and/or 3 and if curious do step 1-9 or whatever.

I only have one Z9 mini and its from batch 1.

I don't have enough knowhow to research this.
when I was poking around I got the feeling that maybe it's not cgminer but sgminer or a hybrid thats running.
Probably wrong about it and don't remember what it was that gave me that idea. (sorry!)
Don't want people putting in work going down the wrong path.
You should all presume that it's cgminer until someone with knowhow can confirm to all of us that it is something else :)


At least step 1-9 could be useful for thoose who owns several z9 mini's and already voided guarantee.

Than it would at least be possible to put together z9 mini's which could be OC'd to max and some z9 mini's left that could not be OC'd at all but perhaps run stable at factory settings or OC'd a little bit and having them run stable.

Instead of having almost every z9 mini being held back by one PCB that don't agree with higher clockspeed's.
That should help some of you with earning more money!

Hope this will help!



By the way I'm using MiningPoolHub on port 17023 for mining multialgo on Equihash.
I tried with ping against MPH from within Z9 mini when logged in.

ping europe.equihash-hub.miningpoolhub.com
gave me ip for europe.equihash-hub.miningpoolhub.com = 172.104.189.59

No difference if I use this:
172.104.189.59:17023
or this
europe.equihash-hub.miningpoolhub.com:17023
as adress for Pool in settings.


Just telling you all my findings!

I'm also using MPH's auto-exchange and converting what I mine to Bitcoin about 75% of time and Litecoin 25%.



I'm also using Bitfi wallet because as far as I can tell they are using the blockchain as memory and that makes it very hard to hack. This will be my cold storage but it is online. I have not yet choosen wich wallet for my iphone.

Waiting for Hodlit to see if thats the solution for me.
Right now I Hoodl BTC and LTC.
A very slow process with my single z9 mini and my single 1080Ti.

(I'm using the heat pruduced by z9 mini for heating my indoor air.)


Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 05, 2018, 08:58:52 AM
Does anyone know, if we OC these miners, will Bitmain know if we have a blow out and claim under a warranty repair/replacement?

I presume that there is some logfile that cannot be deleted, and they ask for this to be sent to them for proof over being a naughty boy overclocker?


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 05, 2018, 09:42:28 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC
Just seen Bitmain yes... price dropping.. never a good sign.. the Z9 Mini's bet they will be $600 soon

I am a bit stuck for which coin to mine... Looking for best returns consistently 
1 Autoswitch on MPH?
2 Zclassic on MPH?
3 Zec on Antpool?
4 Zen on Prohash? or MPH?
5 Zec on Slushpool?


I love the idea of auto switching, if you decide to go that way PLEASE PM me again with a idiots guide on how to...... (Like you did last time). Really very many thanks!
Autoswitch is easy to set up.. Just put 17023 after the colon : in the URL for MPH... and dont forget to set up your deposit wallets In each coin ZEN ZEC ZCL and set up workers in each Coin too and where you set up Hub workers in the main menu set Account's Default Job to Equihash

DOH! gonna need a complete idiots guide, just tried to follow your instructions and ended up mining nothing! Can you PM again with hand holding screen shots please. Huge Thanks, I might work in IT, but this is confusing the hell out of me :(


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 05, 2018, 10:23:47 AM
Just checked the Bitmain site, and they have reduced the cost of the Z9 and Z9 mini!!!!

Z9 down to $3091Ships late Sept

Z9 Mini down to $793 Ships late Sept

Wonder if they can't sell them?
I wouldn't rush into ant more Z9 Minis.. I think wait and see if the big boy will OC
Just seen Bitmain yes... price dropping.. never a good sign.. the Z9 Mini's bet they will be $600 soon

I am a bit stuck for which coin to mine... Looking for best returns consistently  
1 Autoswitch on MPH?
2 Zclassic on MPH?
3 Zec on Antpool?
4 Zen on Prohash? or MPH?
5 Zec on Slushpool?


I love the idea of auto switching, if you decide to go that way PLEASE PM me again with a idiots guide on how to...... (Like you did last time). Really very many thanks!
Autoswitch is easy to set up.. Just put 17023 after the colon : in the URL for MPH... and dont forget to set up your deposit wallets In each coin ZEN ZEC ZCL and set up workers in each Coin too and where you set up Hub workers in the main menu set Account's Default Job to Equihash

DOH! gonna need a complete idiots guide, just tried to follow your instructions and ended up mining nothing! Can you PM again with hand holding screen shots please. Huge Thanks, I might work in IT, but this is confusing the hell out of me :(


1. Log in to MiningPoolHub
2. Left column choose the coin for which you want to put in your wallet/exchange adress like Bitcoin, Litecoin, Zcash, Zclassic, Zencash, ...
3. Left column choose 'wallet'
4. Under "POOL ACCOUNT DETAILS" put in your wallet/exchange adress and "AUTOMATIC PAYOUT THRESHOLD".
5. If using their Auto-exchange feature from what you mine to some other coin in the left column list then do as I did -
Step 1-4 for the coin YOU want to auto-exchange to!!!
6. Upper left column choose "Auto Exchange" and choose the coin YOU want to autoexchange to.

Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 11:01:52 AM
Any package is overclocked. But this is not an easy decision.

https://ibb.co/m91BaK (https://ibb.co/m91BaK)
https://ibb.co/dkAhhz (https://ibb.co/dkAhhz)


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 11:25:56 AM
Any package is overclocked. But this is not an easy decision.

https://ibb.co/m91BaK (https://ibb.co/m91BaK)
https://ibb.co/dkAhhz (https://ibb.co/dkAhhz)
That's a lot of sols  :o good man there  :)
Have you just changed the value to 900 in the balanced edition software?.. i take it that is a batch 1 Z9 mini ?..
Cheers


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 11:50:54 AM
Have you just changed the value to 900 in the balanced edition software?.. i take it that is a batch 1 Z9 mini ?..

Yes, it's Z9 mini, modified to overclock.


Title: Re: Antminer Z9 mini overclocked
Post by: fabry1999 on September 05, 2018, 12:39:05 PM
Have you just changed the value to 900 in the balanced edition software?.. i take it that is a batch 1 Z9 mini ?..

Yes, it's Z9 mini, modified to overclock.

What kind of mods on Z9 mini to run at 900 ?


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 12:41:29 PM
What kind of mods on Z9 mini to run at 900 ?

The frequency is not difficult to change in the interface of the miner. But in order for these settings to work, you need to change the hardware.


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on September 05, 2018, 01:06:09 PM
Any package is overclocked. But this is not an easy decision.

https://ibb.co/m91BaK (https://ibb.co/m91BaK)
https://ibb.co/dkAhhz (https://ibb.co/dkAhhz)

Ok, more info than those drops needed there. :-)

Those batch1 or something else?
How are you keeping temps that low?
Just 3 boards running?

My batch1s all slow down at anything > 750Mhz.

Do tell. What hardware modifications made?
I've no problem pulling these outta the factory chassis and modding...

-j


Title: Re: Antminer Z9 mini overclocked
Post by: fabry1999 on September 05, 2018, 01:19:44 PM
What kind of mods on Z9 mini to run at 900 ?

The frequency is not difficult to change in the interface of the miner. But in order for these settings to work, you need to change the hardware.

yes I know, my question was about the hardware change and not how to set 900 on frequency.


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 01:55:02 PM
Those batch1 or something else?

It is possible to overclock any batch.

Do tell. What hardware modifications made?
I've no problem pulling these outta the factory chassis and modding...

yes I know, my question was about the hardware change and not how to set 900 on frequency.

https://ibb.co/dx6LkK (https://ibb.co/dx6LkK)


On the right is the original hash panel. Left - changed.

The bottom line is that the chips should get extra power.
Detailed step-by-step instructions from me will not be, as long as I make money on these changes. Excuse me. My message was for those professionals who work with electronics. These people know that this is possible and how.


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on September 05, 2018, 02:51:27 PM
Those batch1 or something else?

It is possible to overclock any batch.

Do tell. What hardware modifications made?
I've no problem pulling these outta the factory chassis and modding...

yes I know, my question was about the hardware change and not how to set 900 on frequency.

https://ibb.co/dx6LkK (https://ibb.co/dx6LkK)


On the right is the original hash panel. Left - changed.

The bottom line is that the chips should get extra power.
Detailed step-by-step instructions from me will not be, as long as I make money on these changes. Excuse me. My message was for those professionals who work with electronics. These people know that this is possible and how.

I see -- thank you. Did you make any cooling changes? That is my current limitation of knowledge -- thermodynamics is more of a challenge than the electronics aspect. I'm trying to simultaneously optimize cooling on basically 24 Z9 minis.

-j



Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 03:25:20 PM
I see -- thank you. Did you make any cooling changes? That is my current limitation of knowledge -- thermodynamics is more of a challenge than the electronics aspect. I'm trying to simultaneously optimize cooling on basically 24 Z9 minis.


At these capacities, cooling optimization is not required. And there is no good possibility. In the initial system, the optimization depends on the ratio of the area of ​​the crystal and the volume of the surface of the radiator.

But we will experiment with liquid cooling and increase the speed to 25 kSol (or higher).


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 03:32:07 PM
I see -- thank you. Did you make any cooling changes? That is my current limitation of knowledge -- thermodynamics is more of a challenge than the electronics aspect. I'm trying to simultaneously optimize cooling on basically 24 Z9 minis.


At these capacities, cooling optimization is not required. And there is no good possibility. In the initial system, the optimization depends on the ratio of the area of ​​the crystal and the volume of the surface of the radiator.

But we will experiment with liquid cooling and increase the speed to 25 kSol (or higher).
Can you do the same to batch 2 Z9 Mini's ? 20 sols?


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 03:35:36 PM
Can you do the same to batch 2 Z9 Mini's ? 20 sols?

Of course we can. But there is a problem - the devices must come to us.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 03:42:10 PM
Can you do the same to batch 2 Z9 Mini's ? 20 sols?

Of course we can. But there is a problem - the devices must come to us.
Where are you located
what is the cost per unit?.
And what is the turnaround time?.
Thanks


Title: Re: Antminer Z9 mini overclocked
Post by: Wasp0 on September 05, 2018, 03:46:16 PM
Any package is overclocked. But this is not an easy decision.

https://ibb.co/m91BaK (https://ibb.co/m91BaK)
https://ibb.co/dkAhhz (https://ibb.co/dkAhhz)

That is a great OC Hitsxx, wish i had the skill/Knowledge to undertake that kind of up grade. you do this as a business??


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 04:28:47 PM
Where are you located
what is the cost per unit?.
And what is the turnaround time?.
Thanks

Send to PM.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 05, 2018, 05:09:53 PM
Where are you located
what is the cost per unit?.
And what is the turnaround time?.
Thanks

Send to PM.
Thank you for your price quotation for the upgrading the Z9's Mini's.. but that price is too much in my humble opinion.  plus this is a sharing forum where we share and help each other out for free where possible as a community.
Good luck with your venture.


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 05:26:49 PM
Thank you for your price quotation for the upgrading the Z9's Mini's.. but that price is too much in my humble opinion.  plus this is a sharing forum where we share and help each other out for free where possible as a community.
Good luck with your venture.

Price - the concept is very conditional. This is justified at a time when it is beneficial to both parties.
About the forum - completely agree with you, with one exception. Here people help each other to earn money (here 90% of participants do not play the game, but discuss ways to earn money). And my proposal is not so different. I help to earn you, and you to me. All is correct - an honest exchange. :)


Title: Re: Antminer Z9 mini overclocked
Post by: Sebahl on September 05, 2018, 05:28:38 PM
Those batch1 or something else?

It is possible to overclock any batch.

Do tell. What hardware modifications made?
I've no problem pulling these outta the factory chassis and modding...

yes I know, my question was about the hardware change and not how to set 900 on frequency.

https://ibb.co/dx6LkK (https://ibb.co/dx6LkK)


On the right is the original hash panel. Left - changed.

The bottom line is that the chips should get extra power.
Detailed step-by-step instructions from me will not be, as long as I make money on these changes. Excuse me. My message was for those professionals who work with electronics. These people know that this is possible and how.

Is all that is needed to achieve this is add the 4 components? (For which there are already pads)?


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 05:35:03 PM
Is all that is needed to achieve this is add the 4 components? (For which there are already pads)?

Of course not. The installation of visible components in the photo is only part of the necessary work.


Title: Re: Antminer Z9 mini overclocked
Post by: ezeiza on September 05, 2018, 05:57:00 PM
Those batch1 or something else?

It is possible to overclock any batch.

Do tell. What hardware modifications made?
I've no problem pulling these outta the factory chassis and modding...

yes I know, my question was about the hardware change and not how to set 900 on frequency.

https://ibb.co/dx6LkK (https://ibb.co/dx6LkK)


On the right is the original hash panel. Left - changed.

The bottom line is that the chips should get extra power.
Detailed step-by-step instructions from me will not be, as long as I make money on these changes. Excuse me. My message was for those professionals who work with electronics. These people know that this is possible and how.

What is the price


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 05, 2018, 07:33:45 PM
Unfortunately, at the moment I am limited to the rules of the forum on the number of responses to private messages. If you need a quick reply, write an e-mail.


Title: Re: Antminer Z9 mini overclocked
Post by: william618 on September 05, 2018, 09:25:35 PM
I need some help I flashed the firmware of my second batch and I want to restore it.. how to do? On the bitmain website there is only the may version... I think that the old version gives some issues with the batch 2 ...


Title: Re: Antminer Z9 mini overclocked
Post by: elgoog on September 05, 2018, 09:49:15 PM
I need some help I flashed the firmware of my second batch and I want to restore it.. how to do? On the bitmain website there is only the may version... I think that the old version gives some issues with the batch 2 ...

I installed the old one simply to 2nd batch which had Aug version of firmware.
and it works well and Freq can be changed correctly.


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 06, 2018, 09:20:49 AM
Price - the concept is very conditional. This is justified at a time when it is beneficial to both parties.
About the forum - completely agree with you, with one exception. Here people help each other to earn money (here 90% of participants do not play the game, but discuss ways to earn money). And my proposal is not so different. I help to earn you, and you to me. All is correct - an honest exchange. :)

Ship to a newbie? Thanks but no thanks. No way I'd ship to anyone but a community vetted long term member even if @Hitsxx did it for free. Happy with my puny 15.5 Mh/s. Besides, it's just a matter of time before one of the more knowledgeable, experienced and long term (not to mention generous and community oriented) members in this forum post details of the mod anyways. If it even works stably - which is just a claim at this point in time. A couple pictures is all that @Hitsxx has to prove it.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 06, 2018, 09:30:17 AM
Price - the concept is very conditional. This is justified at a time when it is beneficial to both parties.
About the forum - completely agree with you, with one exception. Here people help each other to earn money (here 90% of participants do not play the game, but discuss ways to earn money). And my proposal is not so different. I help to earn you, and you to me. All is correct - an honest exchange. :)

Ship to a newbie? Thanks but no thanks. No way I'd ship to anyone but a community vetted long term member even if @Hitsxx did it for free. Happy with my puny 15.5 Mh/s. Besides, it's just a matter of time before one of the more knowledgeable, experienced and long term (not to mention generous and community oriented) members in this forum post details of the mod anyways. If it even works stably - which is just a claim at this point in time. A couple pictures is all that @Hitsxx has to prove it.
Agreed, my thoughts exactly  :) We will get there by ourselves as a community, we sort and fix everything together  8)


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 06, 2018, 10:48:13 AM
I need some help I flashed the firmware of my second batch and I want to restore it.. how to do? On the bitmain website there is only the may version... I think that the old version gives some issues with the batch 2 ...

What issues ???

Tried factory reset???


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 06, 2018, 11:37:43 AM
I need some help I flashed the firmware of my second batch and I want to restore it.. how to do? On the bitmain website there is only the may version... I think that the old version gives some issues with the batch 2 ...

What issues ???

Tried factory reset???

The may version is completely fine on batch 2, i have loaded all my batch 2 machines with batch 1 FW


Title: Re: Antminer Z9 mini overclocked
Post by: andreiv26 on September 06, 2018, 12:42:55 PM
I need some help I flashed the firmware of my second batch and I want to restore it.. how to do? On the bitmain website there is only the may version... I think that the old version gives some issues with the batch 2 ...

What issues ???

Tried factory reset???

The may version is completely fine on batch 2, i have loaded all my batch 2 machines with batch 1 FW

What speed are you getting with that firmware and where can I find the May firmware version? Thanks in advance!


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 06, 2018, 12:55:29 PM
I need some help I flashed the firmware of my second batch and I want to restore it.. how to do? On the bitmain website there is only the may version... I think that the old version gives some issues with the batch 2 ...

What issues ???

Tried factory reset???

The may version is completely fine on batch 2, i have loaded all my batch 2 machines with batch 1 FW

What speed are you getting with that firmware and where can I find the May firmware version? Thanks in advance!
Bitmain have removed the Z9 mini May FW from their tech support website.. I have a copy pm me your email and il send you a copy


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 06, 2018, 03:31:00 PM
Has anyone tested the OC ability with batch 2 minis after flashing with batch 1 firmware using the frequency dropdown rather than browser trick? I'm not entirely convinced the hardware is reason these don't seem to OC as well.


Title: Re: Antminer Z9 mini overclocked
Post by: panningforcoin on September 06, 2018, 05:25:21 PM
Has anyone tested the OC ability with batch 2 minis after flashing with batch 1 firmware using the frequency dropdown rather than browser trick? I'm not entirely convinced the hardware is reason these don't seem to OC as well.


I got 4 mini's in Tuesday 9/4. All of them had the newer firmware where only 'balanced' was shown. I downloaded the firmware from bitmain (only one available) an applied to one miner. Once all seemed well I applied to the other three.  I set them all to 650 freq with auto fan. Temps are in the high 60's for the hash boards. Averaging 14.5 hash per miner. All four have been running now for over 48 hours with no problems. I'm mining ZEC on Flypool.



Title: Re: Antminer Z9 mini overclocked
Post by: g33x0f on September 06, 2018, 05:40:50 PM
That's good to hear.  I had something odd happen. I got my Z9 mini yesterday.  I used the browser trick just to set to 550 up from 500 and after about 45mins I had Xs for all 12 chips.  I set back to 500 and now it's been running for almost 12 hours at around ~10-11 KSol/s.  So I got what I paid for, but it seems weird that even most of the batch 2s were getting over 550 without issue and I can't even get that high.  Oh well....  I'm hesitant to mess with the firmware.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 06, 2018, 05:58:56 PM
That's good to hear.  I had something odd happen. I got my Z9 mini yesterday.  I used the browser trick just to set to 550 up from 500 and after about 45mins I had Xs for all 12 chips.  I set back to 500 and now it's been running for almost 12 hours at around ~10-11 KSol/s.  So I got what I paid for, but it seems weird that even most of the batch 2s were getting over 550 without issue and I can't even get that high.  Oh well....  I'm hesitant to mess with the firmware.


I have quite a few of these Z9 Mini's, In my opinion further into the delivery schedule Bitmain have made sure the Z9's are a little tougher to OC.
Batch 1 we all know are rocket chips...I have a 5 x batch 2 Z9's arrive from the very first shipment of batch 2,   and they were all on May FW, and overclocked up to 675/681 15 sols.
Then i had another 5 x of batch 2 and they were a little bit more pedantic, they would not OC past 625/650  13/13.8 sols.
And then i had 2 x of the very last 24th August to 4th September Batch 2 and they had chips failing (00x0) when clocked past 600 freq..
Now looking at they last members comments the delivery he had 2 days ago and they don't OC at all and the hash boards fail (xxxx) when clocked..
Seems Bitmain don't want us having tuned up machines, they want us to buy the Z9 BIG BOY...
lucky i have a copy of the MAY 2018 FW from batch 1.  as i see now Bitmain have removed that from their site. Obviously Bitmain don't want us having batch 1 FW... I have sent a few members this FW today and if you need a copy just drop me a PM....


Title: Re: Antminer Z9 mini overclocked
Post by: Hitsxx on September 06, 2018, 06:03:15 PM
The limitation of overclocking is not related to the firmware version. If someone needs a May version, they can download it here, without any queries - https://yadi.sk/d/949-DCwheW8a7A (https://yadi.sk/d/949-DCwheW8a7A)

Besides, it's just a matter of time before one of the more knowledgeable, experienced and long term (not to mention generous and community oriented) members in this forum post details of the mod anyways. If it even works stably - which is just a claim at this point in time. A couple pictures is all that @Hitsxx has to prove it.

Funny fact. The loudest of all about free assistance to the community are those who didn't do anything themselves. Just an observation, nothing personal.


Title: Re: Antminer Z9 mini overclocked
Post by: william618 on September 06, 2018, 07:21:00 PM
I don't know since I updated the May version the z9 mini batch 2 doesn't work correctly.. I have often some faults even when I don't overclock... I contacted bitmain yesterday and they told me that they will upload very soon a new version of the firmware on their website.. It is really random for me.. sometimes it works and sometimes not.. I suggest that you do a backup of the firmware before upload an older version which is maybe not adapted


Title: Re: Antminer Z9 mini overclocked
Post by: Harai Goshi on September 06, 2018, 11:44:10 PM



I got 4 mini's in Tuesday 9/4. All of them had the newer firmware where only 'balanced' was shown. I downloaded the firmware from bitmain (only one available) an applied to one miner. Once all seemed well I applied to the other three.  I set them all to 650 freq with auto fan. Temps are in the high 60's for the hash boards. Averaging 14.5 hash per miner. All four have been running now for over 48 hours with no problems. I'm mining ZEC on Flypool.


[/quote]

I got two on the same date, have them at 662 avg 14.8. 


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 07, 2018, 03:23:52 AM
Funny fact. The loudest of all about free assistance to the community are those who didn't do anything themselves. Just an observation, nothing personal.

Funnier fact. The loudest of all against free assistance to the community are those who "claim" stuff on the basis of (potentially) photoshopped pics and try to entice the community to pay them on the basis of nothing else but big talk. Just an observation, nothing personal.


Title: Re: Antminer Z9 mini overclocked
Post by: shaninium on September 07, 2018, 03:36:29 AM
Can a member with a high trust post a link to the may firmware , bitmain has taken it down.


Title: Re: Antminer Z9 mini overclocked
Post by: 300cpilot on September 07, 2018, 05:04:45 AM
I got what I think is a batch 2, Z9 mini 5 days ago. However it has the Sat May 26 20:42:30 CST 2018 firmware and has the over clocking values instead of "Balance". It will overclock to 675, but is unstable after that. Averaging 14.9 KSols. I have only one Z9 on a bitmain psu, running 240 volt and it is drawing 364 watts with the fan on 100%, at the wall. Average temps 57-58c. The room it is in is not cooled and yesterday it was 95 degrees F in there.

The question is that it is getting 1000's of discards per hour, is this normal? On Suprnova at the moment. Good or bad?




Title: Re: Antminer Z9 mini overclocked
Post by: shaninium on September 07, 2018, 05:33:04 AM
I got what I think is a batch 2, Z9 mini 5 days ago. However it has the Sat May 26 20:42:30 CST 2018 firmware and has the over clocking values instead of "Balance". It will overclock to 675, but is unstable after that. Averaging 14.9 KSols. I have only one Z9 on a bitmain psu, running 240 volt and it is drawing 364 watts with the fan on 100%, at the wall. Average temps 57-58c. The room it is in is not cooled and yesterday it was 95 degrees F in there.

The question is that it is getting 1000's of discards per hour, is this normal? On Suprnova at the moment. Good or bad?




Discards don't matter, rejects and stales do.


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 07, 2018, 10:50:49 AM
Can a member with a high trust post a link to the may firmware , bitmain has taken it down.


File: Antminer-Z9-Mini-201805262047-500M.tar.gz (http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz)
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)


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Title: Re: Antminer Z9 mini overclocked
Post by: theissue on September 07, 2018, 11:04:54 AM
The link it's not working. Cam you please paste the link again?


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 07, 2018, 11:17:47 AM
The link it's not working. Cam you please paste the link again?

File: Antminer-Z9-Mini-201805262047-500M.tar.gz (http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz)
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)


Title: Re: Antminer Z9 mini overclocked
Post by: d.v. on September 07, 2018, 03:58:47 PM
everyone, i'm pretty sure that Bitmain has restricted the VRM (voltage regulation module) to a certain voltage so that the chips will only run so high before they crash. more than likely, batch 1 was lesser restriction, batch 2 has more, and i guess batch 3 has a lot?! my assumption is that too many people were frying their miners from unresponsible OCing (because they either had a bad chip or was poorly cooled) and then warranty-claiming them back to Bitmain. i don't think there is any way Bitmain can tell that the miners have been OC'd unless there is a hidden log somewhere. the super-strip down version of linux that runs the miner is imprinted into ROM and reloaded upon each power-up cycle; the only changes it keeps (i.e. stratum, address, frequency, etc) is saved to a config file.

anyone who has experience OCing CPUs will know that at some point you need to up the voltage to keep going... well, in the case of these Z9M chips, you can't do that so as you OC the MHz up and up, it will hit a ceiling and crash. trip the VRMs enough times and the darn thing will go into a "i don't want to play anymore, i quit" mode where it won't hash at all and you will think you have bricked your miner. if and when this happens, just power down the miner, exhaust all the power from the miner, disconnect the psu, exhaust the power from the psu, and fire it back up (or just disconnect everything cables and all and let it sit off for 15-20 minutes).

if you want to go above what Bitmain has set, you will need to have some electrical engineering background or knows somebody who does and have some equipment, like a USB-PMBus dongle tool at the minimum to regulate the voltage as well as needing to solder some connectors to certain points on the PCB itself. this is no easy task as you need to be able to read electrical schematics let alone know what the hell you're doing so you don't fry your boards on the first power-up after you mod it. FPGA-guys are already doing this as they really need to regulate voltage when they push their chips while mining. of course this isn't the only way as the direct interface to the PCB may allow modification.

also, heat is going to be an issue if you can actually accomplish what i mentioned above. just like OCing CPUs, the higher it goes, the better fan heatsink or waterblock you better have. i recommend liquid immersion but that's just me. if you disregard this, your chip will fry really quick.

either way, take what i said with a grain of salt cause i am still a noob in regards to this forum and have zero trust so what do i know, eh? just an observation, nothing personal, hehe...

i'm pretty sure at least 99% of you Z9M owners will not be attempting this and the ones who have done this will keep it to themselves and not share out. why give more hashing power to the rest to increase difficulty, right? welcome to the world we live in. happy mining!

 ;) :D ;D ::)


Title: Re: Antminer Z9 mini overclocked
Post by: shehz81 on September 07, 2018, 04:01:30 PM
After OC, has anyone be able to run the second batch Z9 mini at 700 or more?

I have two minis.
One runs at 675 and the other is at 650 running with temperatures of the chips hovering around 55 or lower.

 





Title: Re: Antminer Z9 mini overclocked
Post by: efudd on September 07, 2018, 04:17:14 PM
everyone, i'm pretty sure that Bitmain has restricted the VRM (voltage regulation module) to a certain voltage so that the chips will only run so high before they crash. more than likely, batch 1 was lesser restriction, batch 2 has more, and i guess batch 3 has a lot?! my assumption is that too many people were frying their miners from unresponsible OCing (because they either had a bad chip or was poorly cooled) and then warranty-claiming them back to Bitmain. i don't think there is any way Bitmain can tell that the miners have been OC'd unless there is a hidden log somewhere. the super-strip down version of linux that runs the miner is imprinted into ROM and reloaded upon each power-up cycle; the only changes it keeps (i.e. stratum, address, frequency, etc) is saved to a config file.

anyone who has experience OCing CPUs will know that at some point you need to up the voltage to keep going... well, in the case of these Z9M chips, you can't do that so as you OC the MHz up and up, it will hit a ceiling and crash. trip the VRMs enough times and the darn thing will go into a "i don't want to play anymore, i quit" mode where it won't hash at all and you will think you have bricked your miner. if and when this happens, just power down the miner, exhaust all the power from the miner, disconnect the psu, exhaust the power from the psu, and fire it back up (or just disconnect everything cables and all and let it sit off for 15-20 minutes).

if you want to go above what Bitmain has set, you will need to have some electrical engineering background or knows somebody who does and have some equipment, like a USB-PMBus dongle tool at the minimum to regulate the voltage as well as needing to solder some connectors to certain points on the PCB itself. this is no easy task as you need to be able to read electrical schematics let alone know what the hell you're doing so you don't fry your boards on the first power-up after you mod it. FPGA-guys are already doing this as they really need to regulate voltage when they push their chips while mining. of course this isn't the only way as the direct interface to the PCB may allow modification.

also, heat is going to be an issue if you can actually accomplish what i mentioned above. just like OCing CPUs, the higher it goes, the better fan heatsink or waterblock you better have. i recommend liquid immersion but that's just me. if you disregard this, your chip will fry really quick.

either way, take what i said with a grain of salt cause i am still a noob in regards to this forum and have zero trust so what do i know, eh? just an observation, nothing personal, hehe...

i'm pretty sure at least 99% of you Z9M owners will not be attempting this and the ones who have done this will keep it to themselves and not share out. why give more hashing power to the rest to increase difficulty, right? welcome to the world we live in. happy mining!

 ;) :D ;D ::)

I have the equipment, but only half the clue... :) It's been a while since I went through my first Z9mini, but I vaguely remember some options around voltage (in the API, perhaps?). However, I'm not sure if it is implemented.

If I had a spare control board (I wonder if they are universal enough I could borrow from an S9 I have that is idle, flash with the Z9 rom, and use it...), I'd yank one of my hash boards out and do a little investigating around the serial buss exposed on the hash board.

I don't have a batch2 device, but I'm wondering if there was a hardware change, or a programming change during initialization that could be influenced via I2C/SPI/etc. with a buspirate or the like.

-j


Title: Re: Antminer Z9 mini overclocked
Post by: d.v. on September 07, 2018, 05:11:25 PM
I have the equipment, but only half the clue... :) It's been a while since I went through my first Z9mini, but I vaguely remember some options around voltage (in the API, perhaps?). However, I'm not sure if it is implemented.

If I had a spare control board (I wonder if they are universal enough I could borrow from an S9 I have that is idle, flash with the Z9 rom, and use it...), I'd yank one of my hash boards out and do a little investigating around the serial buss exposed on the hash board.

I don't have a batch2 device, but I'm wondering if there was a hardware change, or a programming change during initialization that could be influenced via I2C/SPI/etc. with a buspirate or the like.

-j

give it a whirl and if it works, you may discover a new market for used control boards, hehe. flash firmware and sell to Z9M owners.


Title: Re: Antminer Z9 mini overclocked
Post by: mcp5500 on September 07, 2018, 06:56:02 PM
I have One Controller flashed with the 750 firmware. I did this to up the share rate by using 1 card from my version 1 Z9 mini. It did up my share rate as it seams, one hash board is enough to do the work and my coin rate went up using 1 Z9 as 2 Z9s. Both overclocked at 750 with a 5500rpm fan the highest temp is 70C. But, as I learned more about using the miner in this way it ups the share rate with a combined hash rate of 16.5 KH/s. But your chance or luck to find a new block goes down. I just purchased a second version 1 Mini and I will be able to make 3 miners running 12 kh/s for a total hash rate of 36K on the pool and an even higher share rate; but again Luck goes down in this config in finding blocks. I will try it to see how it works and I will report back.


Title: Re: Antminer Z9 mini overclocked
Post by: Gangzsta on September 07, 2018, 07:51:13 PM
I have (1) batch 1 mini and (2) batch 2 mini's.  Can you provide more details on what the process is to up the over-clocks?


Title: Re: Antminer Z9 mini overclocked
Post by: fccs on September 07, 2018, 09:57:30 PM
Is all that is needed to achieve this is add the 4 components? (For which there are already pads)?

Of course not. The installation of visible components in the photo is only part of the necessary work.

Can you dm me?  I would like to know price as well for a full z9 though


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on September 07, 2018, 10:15:49 PM
I have (1) batch 1 mini and (2) batch 2 mini's.  Can you provide more details on what the process is to up the over-clocks?

Would be great to have high quality photos of a hash board from batch1 and batch2...

-j


Title: Re: Antminer Z9 mini overclocked
Post by: bigjee on September 08, 2018, 12:11:20 AM
ASIC noob here.

Anyone know how to overclock on a "per hash board" basis? This was we can get a bit more out of these

I tried ssh and editing the config file. Seems only a single option is there for the clocks.

This is what ive been wondering about too.
One of my boards isn't good at overclocking while the other 2 are pretty decent.
If anyone is able to set the frequency for each board/chain separately please point me to the correct place.

Would be great if we could set each one separately.


Title: Re: Antminer Z9 mini overclocked
Post by: mcp5500 on September 08, 2018, 01:24:05 AM
I purchased a 2nd controller board off of ebay. I have the fastest hashing board in slot one and then hashing board 2. Slot 3 is connected to the second controller i got off of ebay. Mine is a batch 1 unit. so i have 2 controller boards connected to the same pool, so the hash rate is totaled at 16kh/s combined but I have 2 workers in the pool. I get about a 10-15% increase in the number of shares processed. I had to connect a fan for the external controller to work. But like i said earlier that luck drops in this config.


Title: Re: Antminer Z9 mini overclocked
Post by: scott85213 on September 08, 2018, 04:42:03 AM
Since my batch 2 units came, and they seem to be quite a bit more finicky on overclocking, I've written a php script that keeps an eye on them and restarts them if they end up failing.

To configure, just change the miners IP's, user name, password, and threshold.

Requirements:
  • PHP webserver with sockets enabled and phpseclib library
  • Z9s need to be on your network or locally accessable

Other fun stuff included: There's a couple logging functions that will dump your hashrate stats into some CSV's.  I use them to make pretty charts. https://i.imgur.com/JAviVIA.png

Random notes... this restarts any machine with a 'failed' ASIC chain or one that has been powered on for more than 2 minutes and doesn't meet your threshold value, it will then restart it via SSH with the phpseclib library.  It pulls all stats with the default enabled CGMiner API, so you don't need to enable anything for that to work.  It actually pulls all the API info, so there's much more info available than what I'm using.  

And if you do it right, you'll end up with something like:
https://i.imgur.com/T3jRoWt.png

Code:
<?php
set_include_path
(get_include_path() . PATH_SEPARATOR 'phpseclib');
include(
'phpseclib/Net/SSH2.php');
header('refresh:600; url=index.php'); //change this to change the refresh in seconds (how often you want it to check on your machines)
date_default_timezone_set('America/Los_Angeles');
$machines = array
(
    
=> array(
'name' => 'Mini-1',
'ip' => '192.168.1.175',
'user' => 'root',
'password' => 'root',
'threshold' => 14,
),
=> array(
"name" => "Mini-2",
"ip" => "192.168.1.160",
'user' => 'root',
'password' => 'root',
"threshold" => 12,
),
=> array(
"name" => "Mini-3",
"ip" => "192.168.1.51",
'user' => 'root',
'password' => 'root',
"threshold" => 12,
),
=> array(
"name" => "Mini-4",
"ip" => "192.168.1.52",
'user' => 'root',
'password' => 'root',
"threshold" => 12,
)
);

foreach (
$machines as &$machine
{
createEmptyLogs($machine);
getstats($machine);
if(checkFails($machine)) restart($machine);
if(!file_exists"logs/overallhashrate.csv" )) file_put_contents("logs/overallhashrate.csv""time,total hashrate\r\n"FILE_APPEND);
}

printTotalHashrate($machines);
echo 
'<br />';

function 
createEmptyLogs($machine)
{
if(!file_exists'logs/'.$machine['name']."hashrate.csv" )) file_put_contents('logs/'.$machine['name']."hashrate.csv""time,".$machine['name']." hashrate\r\n"FILE_APPEND);
}

function 
logging($machine)
{
file_put_contents('logs/'.$machine['name']."hashrate.csv"date('j M H:i:s'time()).",".$machine['ghs5s']."\r\n"FILE_APPEND);
}

function 
restart($machine)
{
$ssh = new Net_SSH2($machine['ip']);
if (!$ssh->login($machine['user'], $machine['password'])) {
exit('Login Failed');
}

$ssh->exec('/etc/init.d/cgminer.sh restart >/dev/null 2>&1');
}

function 
checkFails(&$machine)
{
if (($machine['chain_acs1'] == 'xxxx' or $machine['chain_acs2'] == 'xxxx' or $machine['chain_acs3'] == 'xxxx' or intval($machine['ghs5s']) < intval($machine['threshold'])) and intval($machine['elapsed']) > 120)
return true//this restarts any machine with a 'failed' ASIC chain or one that has been powered on for more than 2 minutes and doesn't meet your threshold value
else return false;
}

function 
getstats(&$machine)
{
// create a socket
$socket socket_create(AF_INETSOCK_STREAMSOL_TCP);
$result socket_connect($socket$machine['ip'], 4028);
if ($socket === false || $result === false) {
echo $machine['name']. " appears to be offline!<br /><br />";
$machine['ghs5s'] = 0;
$machine['ghsav'] = 0;
$machine['chain_rate1'] = 0;
$machine['chain_rate2'] = 0;
$machine['chain_rate3'] = 0;
return;
}
else
{
// send a 'summary' command to antminer
$in '{"command":"stats"}';
$out '';
socket_write($socket$instrlen($in));

// read output from antminer
$output="";
while ($out socket_read($socket2048)) {
$output=$output.$out;
}
socket_close($socket);

$output strtolower($output);
$output str_replace(" """$output);
$output str_replace(","":"$output);
$output str_replace("\""""$output);
$output str_replace("}"""$output);
$output str_replace("]"""$output);
$output explode(":"substr($output,strpos($output,"elapsed"),strpos($output,"id:1")));

foreach($output as $i => $item//create the rest of the item entries
{
if ($i == 0)
$machine[$output[$i]] = $output[$i+1];
}
printmachinestats($machine); //Don't print stats or logs if they aren't online
logging($machine);
}

//print_r($machine);

/* old method of parsing string manually
$machine['totalhashrate']=substr($output,strpos($output,"GHS 5s")+9);

$machine['totalhashrate']=floatval(substr($machine['totalhashrate'],0, strpos($machine['totalhashrate'],"GHS av")));
$machine['uptime']=substr($output,strpos($output,"Elapsed")+9);
$machine['uptime']=floatval(substr($machine['uptime'],0, strpos($machine['uptime'],"GHS 5s")));
$machine['board1hash']=substr($output,strpos($output,"chain_rate1")+14);
$machine['board1hash']=floatval(substr($machine['board1hash'],0, strpos($machine['board1hash'],"chain_rate2")));
$machine['board2hash']=substr($output,strpos($output,"chain_rate2")+14);
$machine['board2hash']=floatval(substr($machine['board2hash'],0, strpos($machine['board2hash'],"chain_rate3")));
$machine['board3hash']=substr($output,strpos($output,"chain_rate3")+14);
$machine['board3hash']=floatval(substr($machine['board3hash'],0, strpos($machine['board3hash'],"}],")));
$machine['board1status']=substr($output,strpos($output,"chain_acs1")+13);
$machine['board1status']=substr($machine['board1status'],0, strpos($machine['board1status'],"chain_acs2")-3);
$machine['board2status']=substr($output,strpos($output,"chain_acs2")+13);
$machine['board2status']=substr($machine['board2status'],0, strpos($machine['board2status'],"chain_acs3")-3);
$machine['board3status']=substr($output,strpos($output,"chain_acs3")+13);
$machine['board3status']=substr($machine['board3status'],0, strpos($machine['board3status'],"chain_hw1")-3);
*/
}

function 
printmachinestats(&$machine)
{
print $machine['name'];
echo '<br />';
print "IP Address = ".$machine['ip'];
echo '<br />';
print "Hashrate = ".$machine['ghsav']. " KSol/S";
echo '<br />';
print "Uptime = ".secondsToTime($machine['elapsed']);
echo '<br />';
print "Board 1 Hash = ".$machine['chain_rate1']. " KSol/S";
echo '<br />';
print "Board 2 Hash = ".$machine['chain_rate2']. " KSol/S";
echo '<br />';
print "Board 3 Hash = ".$machine['chain_rate3']. " KSol/S";
echo '<br />';
print "Board 1 Status = ".$machine['chain_acs1'];
echo '<br />';
print "Board 2 Status = ".$machine['chain_acs2'];
echo '<br />';
print "Board 3 Status = ".$machine['chain_acs3'];
echo '<br />';

echo '<br />';
}

function 
printTotalHashrate($machines)
{
$total 0;
foreach ($machines as &$machine
{
$total += $machine['ghs5s'];
}
print "Total Hashrate = " . $total" KSol/S";
//['2004',  1000,      400]
file_put_contents("logs/overallhashrate.csv"date('j M H:i:s'time()).",".$total."\r\n"FILE_APPEND); //totals Hashrate

}

function 
secondsToTime($seconds
{
    
$dtF = new \DateTime('@0');
    
$dtT = new \DateTime("@$seconds");
    return 
$dtF->diff($dtT)->format('%a days, %h hours, %i minutes and %s seconds');
}
?>

I won't be providing any support for this, but I can answer any simple questions.

Donations:
LTC: MKKDJpk74UjUWXEPM2v7x7QfM2RFZxyQUa
ETH: 0xD3c330bdc5b5f964a45D20dBC3e71F6b15E442eb


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 08, 2018, 05:42:00 AM
Since my batch 2 units came, and they seem to be quite a bit more finicky on overclocking, I've written a php script that keeps an eye on them and restarts them if they end up failing.

...............

Nice!


Title: Re: Antminer Z9 mini overclocked
Post by: starmax on September 08, 2018, 01:10:19 PM
Hey guys, I have a batch 2 mini that I am powering with a regular 750w computer psu. At least 1x per day my mini will completely power off and I have to disconnect the PSU ATX jumper and reconnect it to power the z9 back up.  Disconnecting the power cord and switching the PSU on/off does nothing, I always have to reset the jumper.  Anyone experience this before? Think my overclock is to high(650), or maybe I should I buy an Asic psu?

Thanks!


Title: Re: Antminer Z9 mini overclocked
Post by: philipma1957 on September 08, 2018, 01:11:53 PM
Hey guys, I have a batch 2 mini that I am powering with a regular 750w computer psu. At least 1x per day my mini will completely power off and I have to disconnect the PSU ATX jumper and reconnect it to power the z9 back up.  Disconnecting the power cord and switching the PSU on/off do nothing, I always have to reset the jumper.  Anyone experience this before? Think my overclock is to high(650), or maybe I should I buy an Asic psu?

Thanks!

go simple drop clock to 625    see if that works

my quess is it is the psu since others can clock as high as 700

what is make and model of the psu?

a mini only uses 300 watts


Title: Re: Antminer Z9 mini overclocked
Post by: starmax on September 08, 2018, 01:14:59 PM
Hey guys, I have a batch 2 mini that I am powering with a regular 750w computer psu. At least 1x per day my mini will completely power off and I have to disconnect the PSU ATX jumper and reconnect it to power the z9 back up.  Disconnecting the power cord and switching the PSU on/off do nothing, I always have to reset the jumper.  Anyone experience this before? Think my overclock is to high(650), or maybe I should I buy an Asic psu?

Thanks!

go simple drop clock to 625    see if that works

my quess is it is the psu since others can clock as high as 700

what is make and model of the psu?

Evga b1 750 (its just one I had lying around).


Title: Re: Antminer Z9 mini overclocked
Post by: philipma1957 on September 08, 2018, 01:17:59 PM
Hey guys, I have a batch 2 mini that I am powering with a regular 750w computer psu. At least 1x per day my mini will completely power off and I have to disconnect the PSU ATX jumper and reconnect it to power the z9 back up.  Disconnecting the power cord and switching the PSU on/off do nothing, I always have to reset the jumper.  Anyone experience this before? Think my overclock is to high(650), or maybe I should I buy an Asic psu?

Thanks!

go simple drop clock to 625    see if that works

my quess is it is the psu since others can clock as high as 700

what is make and model of the psu?

Evga b1 750 (its just one I had lying around).

yeah the b model is so so  

still  try dropping clock down  625  then 600  see if stable  if not look for a decent server psu

I do not know this seller
https://www.ebay.com/itm/750w-PSU-Power-Supply-Mining-Miner-For-Antminer-S3-S1-S5-miner-BTC-Coin-New-US/253475483462?


or ask  forum member sidehack

https://bitcointalk.org/index.php?action=profile;u=130792

he had some good ones


Title: Re: Antminer Z9 mini overclocked
Post by: starmax on September 08, 2018, 01:33:38 PM
Thank you, I saw Newegg had some HP 750w for $59, maybe I’ll pick one up


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 08, 2018, 01:40:44 PM
I just knocked my fixed fan settings to Auto and i had boards dropping with XXXX and hash dropping like i had the freq too high.. just fixed the fans at 95% again and hashing as normal... I am thinking that the cut off is linked to heat.. ??? maybe.. just an observation


Title: Re: Antminer Z9 mini overclocked
Post by: starmax on September 08, 2018, 01:49:45 PM
Auto keeps mine @ 67 or lower.  What temps are you seeing?


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 08, 2018, 01:55:05 PM
Auto keeps mine @ 67 or lower.  What temps are you seeing?
In auto mode 68 with cutouts... fixed 51/55


Title: Re: Antminer Z9 mini overclocked
Post by: mcp5500 on September 08, 2018, 05:10:36 PM
My Batch 1 mini came with a 3000rpm fan. I replaced it with a 5400rpm fan. set it to 100% and the clock at 750. In this config I have 1 board reaching 70deg C and the other 2 are below that. The boards are in the 55deg C range. I have a second batch 1 mini coming in a few days and I have a 6000rpm fan i will use with that one. The seller states it runs at 16kh/s as is but I feel better with the high speed fans.

Here is more data
When I am hashing at 16.9 kh/s the share rate on ZEN, @ suprnova, my share rate for the 16.9 kh/s, with 1 controler (original) configuration, is 913. In the 2 controller configuration it's 1010.
My Efficiency dropped from 99.9 to 98.8 respectively.
Round earnings went from .0367 to .0404 respectively.


Title: Re: Antminer Z9 mini overclocked
Post by: kahc on September 08, 2018, 11:48:46 PM
My Batch 1 mini came with a 3000rpm fan. I replaced it with a 5400rpm fan. set it to 100% and the clock at 750. In this config I have 1 board reaching 70deg C and the other 2 are below that. The boards are in the 55deg C range. I have a second batch 1 mini coming in a few days and I have a 6000rpm fan i will use with that one. The seller states it runs at 16kh/s as is but I feel better with the high speed fans.

Here is more data
When I am hashing at 16.9 kh/s the share rate on ZEN, @ suprnova, my share rate for the 16.9 kh/s, with 1 controler (original) configuration, is 913. In the 2 controller configuration it's 1010.
My Efficiency dropped from 99.9 to 98.8 respectively.
Round earnings went from .0367 to .0404 respectively.

Bitmain must have messed it up to equip your Z9 mini with a 3000 RPM fan.
All mine Z9 minis from batch 1 came with 6000 RPM fans (Delta Electronics QFR1212GHE).


Title: Re: Antminer Z9 mini overclocked
Post by: mcp5500 on September 09, 2018, 12:25:24 AM

My Batch 1 mini came with a 3000rpm fan. I replaced it with a 5400rpm fan. set it to 100% and the clock at 750. In this config I have 1 board reaching 70deg C and the other 2 are below that. The boards are in the 55deg C range. I have a second batch 1 mini coming in a few days and I have a 6000rpm fan i will use with that one. The seller states it runs at 16kh/s as is but I feel better with the high speed fans.

Here is more data
When I am hashing at 16.9 kh/s the share rate on ZEN, @ suprnova, my share rate for the 16.9 kh/s, with 1 controler (original) configuration, is 913. In the 2 controller configuration it's 1010.
My Efficiency dropped from 99.9 to 98.8 respectively.
Round earnings went from .0367 to .0404 respectively.

Bitmain must have messed it up to equip your Z9 mini with a 3000 RPM fan.
All mine Z9 minis from batch 1 came with 6000 RPM fans (Delta Electronics QFR1212GHE).

Really, maybe mine was a defective fan Because I changed the fan right from the beginning when i set it up for the first time. It ran fine with the clock at 500. It was when I started testing the overclock that's when the trouble was seen in temperature and i changed the fan with a 5400rpm I had already. I'll check the new one when i get it. I only bought 1 so I was working from no reference. I wonder if more were using a 3000rpm fans. Anyone?


Title: Re: Antminer Z9 mini overclocked
Post by: theissue on September 09, 2018, 08:51:49 AM
Hello,

Got my 2nd batch 3xZ9mini's from Bitmain since few days ago.

What have I done:
  • flashing the overclockable firmware (Sat May 26 20:42:30 CST 2018)
  • set the frequency to 650 (after many failure attempts starting with 700 and goes down)
  • set the fan speed to 95%
  • changed the dhcp to static (ip: 192.168.1.10x, mask: 255.255.255.0, gw: 192.168.1.1, dns1: 192.168.1.1) for each unit
  • set the min payout for not flooding the blockchain to: 0.3 ZEC, 6 ZCL and 2 ZEN
  • added the following pools:
    • miningpoolhub (with their awesome auto-switch for profitability): europe.equihash-hub.miningpoolhub.com:17023
    • nanopool: zec-eu1.nanopool.org:6666
    • antpool (not a good idea as the latency with their servers is too high, as a results there will be more rejected shares): stratum-zec.antpool.com:8899
What I get:
  • a hashrate between 13-15 ksol (14 ksol average)
  • PCB temperature: 47, 55, 50 (celsius degrees)
  • CHIP temperature: 60, 69 ,68 (celsius degrees)
  • HW errors: 0
  • rejected shares: below one per hour
  • my first payout from nanopool :)

This is my setup. Until now, it's running well.
Who's helped me? You, guys. Thanks!
Happy mining!


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on September 09, 2018, 12:00:38 PM
What are you doing with fan's ? are you leaving that on the default ?
Because if you overclock the Z9 you need to change the fans to I guess ?

And I have add my configuration screen about 700 accepted shares but on my flypool screen only 400 accepted share. Has anyone a explenation ?

How many share's you got on 10 k sol's ?


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on September 09, 2018, 02:13:37 PM
i got my z9 mini batch 2 running for few days @ default 550
has no problem at all so i decided to rise it up to 625
all good still
today for almost 12 hours i have run it at 650 freq

i just notice as i was checking on pool (suprnova)
i cant get 100% efficiency
i thought it was my internet line 
but all lines are good

i switched it back to 625, and observe
i have all running 100% at pool side

which make me made my final setup at 625
running 13-15K sols

temp
64-66 degrees




OK how many accepterd share's do you have ?


Title: Re: Antminer Z9 mini overclocked
Post by: KrK27 on September 10, 2018, 03:54:51 PM
I received a new batch 3, trick to oc with google chrome dont work... new firmware file system “Thu Aug 30”

Edit: try to restore a backup from batch2, all settings as restored, but frequency dont change.

Edit: flashed older firm, now works perfect.


Title: Re: Antminer Z9 mini overclocked
Post by: oomurashin on September 10, 2018, 05:01:37 PM
I received a new batch 3, trick to oc with google chrome dont work... new firmware file system “Thu Aug 30”

Edit: try to restore a backup from batch2, all settings as restored, but frequency dont change.
did you try flash may 26 firm? ??? ??? ???


Title: Re: Antminer Z9 mini overclocked
Post by: KrK27 on September 10, 2018, 05:02:22 PM
I received a new batch 3, trick to oc with google chrome dont work... new firmware file system “Thu Aug 30”

Edit: try to restore a backup from batch2, all settings as restored, but frequency dont change.
did you try flash may 26 firm? ??? ??? ???

Yes, now work perfect.


Title: Re: Antminer Z9 mini overclocked
Post by: oomurashin on September 10, 2018, 05:06:46 PM
I received a new batch 3, trick to oc with google chrome dont work... new firmware file system “Thu Aug 30”

Edit: try to restore a backup from batch2, all settings as restored, but frequency dont change.
did you try flash may 26 firm? ??? ??? ???

Yes, now work perfect.
great! also try over clock? ;) ;) ;)


Title: Re: Antminer Z9 mini overclocked
Post by: KrK27 on September 10, 2018, 05:42:25 PM
I can overclock to 750, but i set 700 now and work very stable @15.50 average.  ;D



Title: Re: Antminer Z9 mini overclocked
Post by: Karlitosss on September 10, 2018, 07:20:00 PM
Just received my Z9 mini
I cannot overclock it, it only says balance.

Can someone tell me where to download batch one firmware?


Title: Re: Antminer Z9 mini overclocked
Post by: Kahooli on September 10, 2018, 07:24:21 PM
Just ssh into it and change the miner config


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 10, 2018, 08:52:07 PM
I can overclock to 750, but i set 700 now and work very stable @15.50 average.  ;D


Are you suggesting that the OC ability is more related to the firmware than the hardware? In other words a batch 2 ought to OC higher when flashed with a batch 1 firmware rather than using the browser trick?


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 10, 2018, 08:55:54 PM
I can overclock to 750, but i set 700 now and work very stable @15.50 average.  ;D


Are you suggesting that the OC ability is more related to the firmware than the hardware? In other words a batch 2 ought to OC higher when flashed with a batch 1 firmware rather than using the browser trick?
It makes no difference If you flash it with May 18 FW or change the value in the batch 2 FW.. The other member is very luck if he is getting 700 out of a batch 2 Z9 Mini.. I am getting 643 or 650 and i have 1 on 662 max.
I would just flash the May 18 FW and text out what you have..


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 10, 2018, 10:03:46 PM
Just received my Z9 mini
I cannot overclock it, it only says balance.

Can someone tell me where to download batch one firmware?


https://bitcointalk.org/index.php?topic=4610213.msg45329101#msg45329101

good luck!


Title: Re: Antminer Z9 mini overclocked
Post by: smith000 on September 10, 2018, 11:30:33 PM
Can a member with a high trust post a link to the may firmware , bitmain has taken it down.


File: Antminer-Z9-Mini-201805262047-500M.tar.gz (http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz)
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)



FTP Server is not even up now. Anyone got a link to this on a google drive or someplace?



Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 10, 2018, 11:59:47 PM
Can a member with a high trust post a link to the may firmware , bitmain has taken it down.


File: Antminer-Z9-Mini-201805262047-500M.tar.gz (http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz)
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)



FTP Server is not even up now. Anyone got a link to this on a google drive or someplace?



I hope this will do!

Uploadfiles.io
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

https://ufile.io/fwcqd

(This link should work for 30 days from now!)

Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW


Title: Re: Antminer Z9 mini overclocked
Post by: Karlitosss on September 11, 2018, 12:21:38 AM
Should I mine Zcash or Zen with a Z9 mini?

(By the way just flashed to the first batches BIOS and I can now OC the ASIC)


Title: Re: Antminer Z9 mini overclocked
Post by: TGJ on September 11, 2018, 12:51:45 AM
Can a member with a high trust post a link to the may firmware , bitmain has taken it down.


File: Antminer-Z9-Mini-201805262047-500M.tar.gz (http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz)
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)



FTP Server is not even up now. Anyone got a link to this on a google drive or someplace?



I hope this will do!

Uploadfiles.io
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

https://ufile.io/fwcqd

(This link should work for 30 days from now!)

Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW
Pretty lame to beg for donations every time you think you are helping someone.


Title: Re: Antminer Z9 mini overclocked
Post by: smith000 on September 11, 2018, 01:08:36 AM
Thanks!  Works like a champ!


Title: Re: Antminer Z9 mini overclocked
Post by: stevej on September 11, 2018, 04:23:25 AM
Just got my batch 2 Mini yesterday.  Ran it at 650 Mhz all night and had no HW errors and minimal pool rejects (using nanopool).  Getting around 14.8Ksol/s.  What's odd is I changed the cgminer.conf to set the speed to something higher but anything higher than 650 just gives me a really low hash rate, around 4.5Ksol/s, even 655 Mhz.  No HW errors, just slow hashing.  Anyone else experience this?


I noticed the Z9 mini seems to hash slowly unless you select speeds in specific increments. (usually 6 mhz) the only reason I know this is because after I experienced the same thing as you on my manually adjusted batch 2 mini, I looked at the OC options on my batch 1 mini and it looks like they usually let you select in increments of 6 or 7 mhz. I don't really know why but I'm guessing it's a memory timing thing. Try adjusting with the following exact increments until you get stability. 700, 693, 687, 681, 675, 668, 662, 650, etc.

I just got mine as well, I ssh to it and edited the config file to freq 550 and now its above 12 ksols up to 15 sometimes :)


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on September 11, 2018, 09:57:06 AM
My Z9 mini is not overclocked but I get 11.000 SOl/S. Not even 1 one time below the 10.000.


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 11, 2018, 03:23:32 PM
Can a member with a high trust post a link to the may firmware , bitmain has taken it down.


File: Antminer-Z9-Mini-201805262047-500M.tar.gz (http://ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz)
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

ftp://file.bitmain.com/shop-bitmain/firmwares/Antminer%20Z9%20mini/Firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

(There should NOT be a "http://" before the link! I can't see the "http://" when editing)



FTP Server is not even up now. Anyone got a link to this on a google drive or someplace?



I hope this will do!

Uploadfiles.io
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee

https://ufile.io/fwcqd

(This link should work for 30 days from now!)

Donations:
Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW
Pretty lame to beg for donations every time you think you are helping someone.

Yes "TGJ", it's pretty lame in your world.
I guess you dont't believe in "reward whom so deserve it!".

In my world it's possible that some people sometimes actually understand the time and effort I put in and the time and money they save/make thanks to me and my work. It's not like I expect everyone I try to help making a donation. Then I would not be in this forum trying to help!!!


Title: Re: Antminer Z9 mini overclocked
Post by: maxtech on September 11, 2018, 05:16:48 PM
Those batch1 or something else?

It is possible to overclock any batch.

Do tell. What hardware modifications made?
I've no problem pulling these outta the factory chassis and modding...

yes I know, my question was about the hardware change and not how to set 900 on frequency.

https://ibb.co/dx6LkK (https://ibb.co/dx6LkK)


On the right is the original hash panel. Left - changed.

The bottom line is that the chips should get extra power.
Detailed step-by-step instructions from me will not be, as long as I make money on these changes. Excuse me. My message was for those professionals who work with electronics. These people know that this is possible and how.

I want OC z9 mini 25K Sol . How many?


Title: Re: Antminer Z9 mini overclocked
Post by: sleeper1974 on September 12, 2018, 12:25:04 PM
Sorry for asking here.

I received two Z9 mini yesterday. One of them is mining normally. The other does not recognize hashboards. Any tips? Or should I forward it to Bitmain? I'm in Brazil, so if there was a solution without having to send to Bitmain, this would be the best alternative.

Tks!

Alexandre


Title: Re: Antminer Z9 mini overclocked
Post by: Warlockks on September 12, 2018, 03:26:24 PM
everyone, i'm pretty sure that Bitmain has restricted the VRM (voltage regulation module) to a certain voltage so that the chips will only run so high before they crash. more than likely, batch 1 was lesser restriction, batch 2 has more, and i guess batch 3 has a lot?! my assumption is that too many people were frying their miners from unresponsible OCing (because they either had a bad chip or was poorly cooled) and then warranty-claiming them back to Bitmain. i don't think there is any way Bitmain can tell that the miners have been OC'd unless there is a hidden log somewhere. the super-strip down version of linux that runs the miner is imprinted into ROM and reloaded upon each power-up cycle; the only changes it keeps (i.e. stratum, address, frequency, etc) is saved to a config file.

anyone who has experience OCing CPUs will know that at some point you need to up the voltage to keep going... well, in the case of these Z9M chips, you can't do that so as you OC the MHz up and up, it will hit a ceiling and crash. trip the VRMs enough times and the darn thing will go into a "i don't want to play anymore, i quit" mode where it won't hash at all and you will think you have bricked your miner. if and when this happens, just power down the miner, exhaust all the power from the miner, disconnect the psu, exhaust the power from the psu, and fire it back up (or just disconnect everything cables and all and let it sit off for 15-20 minutes).

if you want to go above what Bitmain has set, you will need to have some electrical engineering background or knows somebody who does and have some equipment, like a USB-PMBus dongle tool at the minimum to regulate the voltage as well as needing to solder some connectors to certain points on the PCB itself. this is no easy task as you need to be able to read electrical schematics let alone know what the hell you're doing so you don't fry your boards on the first power-up after you mod it. FPGA-guys are already doing this as they really need to regulate voltage when they push their chips while mining. of course this isn't the only way as the direct interface to the PCB may allow modification.

also, heat is going to be an issue if you can actually accomplish what i mentioned above. just like OCing CPUs, the higher it goes, the better fan heatsink or waterblock you better have. i recommend liquid immersion but that's just me. if you disregard this, your chip will fry really quick.

either way, take what i said with a grain of salt cause i am still a noob in regards to this forum and have zero trust so what do i know, eh? just an observation, nothing personal, hehe...

i'm pretty sure at least 99% of you Z9M owners will not be attempting this and the ones who have done this will keep it to themselves and not share out. why give more hashing power to the rest to increase difficulty, right? welcome to the world we live in. happy mining!

 ;) :D ;D ::)

I'm thinking you may be correct.  It's also possible they may have skimped on MLCCs (power supply decoupling capacitors) in the newer batch, thus creating more ripple voltage at the chips, and lower overclocking potential.

The MLCC market is EXTREMELY tight right now, and prices are going up, and availability is way down.   

So it may be as simple as replacing a few capacitors per hashing chip.   I began to suspect this because I own an electronics manufacturing company, and am an electrical engineer.    But I have yet to verify (or attempt to verify) my suspicion. 


Title: Re: Antminer Z9 mini overclocked
Post by: Jack Bond on September 12, 2018, 10:23:19 PM
I've played with mine and they seem safe at 650
I tried different settings and i'm not happy with the quality of the miner since its gen2 shippment and not stable like the others at 750. I think the software is junk and also bitmain took the GEN1 firmware off the website, Anyone have a clean version firmware of GEN 1? I'd love to reflash mine. Have been running 600 to 618 and getting all kinds of diffrent speeds. Now I just leave it at 650.. Get these to make some  oney back on these hard time mining


Title: Re: Antminer Z9 mini overclocked
Post by: Sebahl on September 12, 2018, 10:30:13 PM
I've played with mine and they seem safe at 650
I tried different settings and i'm not happy with the quality of the miner since its gen2 shippment and not stable like the others at 750. I think the software is junk and also bitmain took the GEN1 firmware off the website, Anyone have a clean version firmware of GEN 1? I'd love to reflash mine. Have been running 600 to 618 and getting all kinds of diffrent speeds. Now I just leave it at 650.. Get these to make some  oney back on these hard time mining

People have tried reflashing with batch 1 firmware. No improvement on hash speed, so it's not a firmware but a hardware limitation.


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 13, 2018, 06:09:07 AM
Now I'm really confused. I've been following this thread for a while and was completely expecting my batch two z9 mini's to underperform compared to batch one. I received two of them on the 10th of September.

But they're not underperforming. They're as good as batch one. Both of them. Both easily clock to 750 and have been averaging 16.5 KSols/s for the last 24+ hours.

In case it benefits anyone in the community, these are the exact steps I took and the results:
  • Changed pool configuration. Set fan speed to 100% fixed.
  • Initially tried the F12 trick to overclock the first one. Tried 750 off the bat. Didn't work. As in, the firmware still showed the machine running at 500M.
  • Tried editing cgminer.conf directly (after granting it write permissions). Didn't work. The firmware still showed the machine running at 500M.
  • Tried 600, 625, 650 with both methods above. Still didn't work. At this point I figured the firmware was locked to 500M. Didn't try 550M. Double checked cgminer.conf. It was correctly saving whatever frequency I put in it but the machine just wouldn't accept it. New firmware? Probably.
  • Flashed firmware to one dated may 26th 2018. I had downloaded this from Bitmain way back just as a backup. Filename: Antminer-Z9-Mini-201805262047-500M.tar.gz
  • Overclocked to 750M. Works perfectly as mentioned above.

I'm wondering if I was just lucky and got two good units but it doesn't seem probable considering the fact that the firmware I received was the one with the "Balanced" option on it. It had no option to overclock.

The only thing I seem to have done (maybe differently) is set fan speed to 100% fixed. Maybe that has something to do with it?

Worth a shot I guess.

EDIT: Forgot to mention - temperatures on all boards are between 65-70 degs with the fans at 100%.


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 13, 2018, 06:27:12 AM
I have a question regarding the Z9 Mini - not sure if this is the right thread but it's the closest I could find.

I'm planning on running 3 Z9 mini's off of a standard 1600w bitmain apw++ power supply running off of a 240v circuit. I plan to overclock all 3 to 750m (consumes about 400-450w each so well within the apw++ limits).

My question is this:

The apw++ has 10 pcie connectors. I need 12 to run 3 z9 mini's. I'm planning on connecting 9 of them directly to the hashing boards of the 3 units and using 2 splitters to split the power of the last pcie connector into 3 - for the 3 control boards.

Splitter I'm planning to use (for reference):
https://www.amazon.ca/StarTech-com-PCIEXSPLIT6-6-Inch-Express-Splitter/dp/B004NNTVT6/ref=sr_1_14?ie=UTF8&qid=1535493571&sr=8-14&keywords=pcie+splitter (https://www.amazon.ca/StarTech-com-PCIEXSPLIT6-6-Inch-Express-Splitter/dp/B004NNTVT6/ref=sr_1_14?ie=UTF8&qid=1535493571&sr=8-14&keywords=pcie+splitter)

This is assuming that the control boards dont take up much power compared to the actual hash boards. Given that, I'm thinking it would be OK to run three control boards off the same pcie connector.

Am I correct in this assumption? Is it safe to do what I am planning to?

Any input much appreciated. Thanks.
I donnt think you will power 3 clocked z9's.. i have 2 z9's clocked on one PSW3++ Firstly i am getting 750 mhz 16.5/17 sols out of one z9 and i can only get 681mhz out of the other 14.7/15.2 sols if i push the second z9 higher i begins high and drops off to zero hash rate.. i am guessing power failure.. but 2 do run nicely off one Bitmain PSU
Pics on my twitter

 https://twitter.com/mrtraderman

Including the entire quote above so people know the context. Three Z9 Mini's work perfectly well off of a single Bitmain APW++ power supply running at 240v.

May be a bit of a stretch on a 120v circuit since the APW++ only produces 1200w at 120v. It produces 1600W at 240v as per Bitmain's specs.

Tested how much the control boards consume. Each control board consumes between 35-40w on its own. Three of them are well under 120w total so it's safe to link 3 to a single PCIE connector (rated at 150w) using the splitters mentioned above.

Total power draw from the wall overclocked to 750M and running stable at ~16.5 KSol/s for the last 24 hours is about 1140w

Pic of the setup:

https://i.imgur.com/pfVwKKZ.jpg

Cheers!



Title: Re: Antminer Z9 mini overclocked
Post by: oomurashin on September 13, 2018, 06:30:28 AM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 13, 2018, 06:34:23 AM
Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)

To the best of my knowledge - No. One S9 consumes about 1400w using the same PSU. Don't think there's any problem connecting three of the Z9 mini's (which consume 1150w total) to a single power supply.

Been working fine for me so far. Will update if there are any problems. TBH I don't see why there should be.


Title: Re: Antminer Z9 mini overclocked
Post by: DR_BamBam on September 13, 2018, 07:08:01 AM
Looks like you won the silicon lottery, good for you :). Whats funny is my batch 2 came with the may firmware but wont overclock past 662 stable,  I can go for 668 but sometimes after 24-48 hours one of the boards drops off. I tried the fans at 100% and 750mhz but it crashes after a few min. Mine is stable at 662 55% fan setting. What I did was reverse the fan so that it pulls instead of blows and it dropped the temp by 10c and it runs at 50c.


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 13, 2018, 09:25:48 AM
Looks like you won the silicon lottery, good for you :). Whats funny is my batch 2 came with the may firmware but wont overclock past 662 stable,  I can go for 668 but sometimes after 24-48 hours one of the boards drops off. I tried the fans at 100% and 750mhz but it crashes after a few min. Mine is stable at 662 55% fan setting. What I did was reverse the fan so that it pulls instead of blows and it dropped the temp by 10c and it runs at 50c.

Damn. I was hoping to identify some pattern. Never won a single lottery in my life... my luck sucks that way. Maybe this is a good omen :)


Title: Re: Antminer Z9 mini overclocked
Post by: zagorlord on September 13, 2018, 10:03:51 AM
Now I'm really confused. I've been following this thread for a while and was completely expecting my batch two z9 mini's to underperform compared to batch one. I received two of them on the 10th of September.

But they're not underperforming. They're as good as batch one. Both of them. Both easily clock to 750 and have been averaging 16.5 KSols/s for the last 24+ hours.

In case it benefits anyone in the community, these are the exact steps I took and the results:
  • Changed pool configuration. Set fan speed to 100% fixed.
  • Initially tried the F12 trick to overclock the first one. Tried 750 off the bat. Didn't work. As in, the firmware still showed the machine running at 500M.
  • Tried editing cgminer.conf directly (after granting it write permissions). Didn't work. The firmware still showed the machine running at 500M.
  • Tried 600, 625, 650 with both methods above. Still didn't work. At this point I figured the firmware was locked to 500M. Didn't try 550M. Double checked cgminer.conf. It was correctly saving whatever frequency I put in it but the machine just wouldn't accept it. New firmware? Probably.
  • Flashed firmware to one dated may 26th 2018. I had downloaded this from Bitmain way back just as a backup. Filename: Antminer-Z9-Mini-201805262047-500M.tar.gz
  • Overclocked to 750M. Works perfectly as mentioned above.

I'm wondering if I was just lucky and got two good units but it doesn't seem probable considering the fact that the firmware I received was the one with the "Balanced" option on it. It had no option to overclock.

The only thing I seem to have done (maybe differently) is set fan speed to 100% fixed. Maybe that has something to do with it?

Worth a shot I guess.

EDIT: Forgot to mention - temperatures on all boards are between 65-70 degs with the fans at 100%.



Hello since i am still newbie i cannot send private message to you. Can you please send me in pm link of that firmware (Filename: Antminer-Z9-Mini-201805262047-500M.tar.gz) , there is none at bitmain page anymore. Thanks in advance!


Title: Re: Antminer Z9 mini overclocked
Post by: Shadow82 on September 13, 2018, 12:40:23 PM
https://service.bitmain.com/support/download?product=Antminer%20Z9%20mini

Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

Is it a new firmware form Batch-3? Has anyone tried it? What is about overclocking?



Title: Re: Antminer Z9 mini overclocked
Post by: DR_BamBam on September 13, 2018, 01:10:42 PM
I noticed the control board has a connection for 1 more hash board is it possible to connect a 4th board to the miner? Has anyone tried if it works or dose it need a custom firmware to initialize the 4th board? I was thinking about building its own case for it with 4 boards instead of 3. I read on another thread that some one fried one of their boards and ordered a new hash board for 200 bucks form bitmain. Thoughts?


Title: Re: Antminer Z9 mini overclocked
Post by: zhzz on September 13, 2018, 03:43:07 PM
https://service.bitmain.com/support/download?product=Antminer%20Z9%20mini

Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

Is it a new firmware form Batch-3? Has anyone tried it? What is about overclocking?



it's a new firmware and does not allow OC.

I noticed the control board has a connection for 1 more hash board is it possible to connect a 4th board to the miner? Has anyone tried if it works or dose it need a custom firmware to initialize the 4th board? I was thinking about building its own case for it with 4 boards instead of 3. I read on another thread that some one fried one of their boards and ordered a new hash board for 200 bucks form bitmain. Thoughts?

almost every antminer (even older models) has one additional connection. I thought the same but no one did it before. I doubt that bitmain will send you a new board (solo) for 200 usd.


Title: Re: Antminer Z9 mini overclocked
Post by: DR_BamBam on September 13, 2018, 03:59:31 PM
Quote
almost every antminer (even older models) has one additional connection. I thought the same but no one did it before. I doubt that bitmain will send you a new board (solo) for 200 usd.

Im sure they will since another user on this forum got one sent to him after he burned out a board, my question is will it work ? Im hoping some one with 2 units can set one up and test it, if it works i will hit up bitmain and say i fried one of my boards due to overclocking and i can order a replacement just like the other user.

the post is some where in this thread
https://bitcointalk.org/index.php?topic=3509006.0 (https://bitcointalk.org/index.php?topic=3509006.0)


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 13, 2018, 04:18:54 PM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)
I don't think so. I currently have 5 z9 minis connected to 2 apw3++ psus on 110v without issue. However the above poster must be using a splitter to connect all 3 to 1 PSU which from what I understand is something you are NOT supposed to do.


Title: Re: Antminer Z9 mini overclocked
Post by: fjzappA on September 13, 2018, 04:31:02 PM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)

OK to drive multiple things from one PSU.  (Think of your house - 1 PSU for your whole city)

Don't mix PSUs on a single device.

I have an IBM 2880 watt server PSU and running 4 Minis off of it.  Previously running 2x S9's off of it.


Title: Re: Antminer Z9 mini overclocked
Post by: fanatic26_ on September 13, 2018, 04:41:04 PM
Batch 2 z9 minis checking in.

Both stable at 675

Seeing 16k/sols from one and 15.7 k/sols from the other pool side. Its actually more than what the local console is reporting. Anything over 675 drops boards within 12 hours.


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 13, 2018, 05:49:33 PM
Hello since i am still newbie i cannot send private message to you. Can you please send me in pm link of that firmware (Filename: Antminer-Z9-Mini-201805262047-500M.tar.gz) , there is none at bitmain page anymore. Thanks in advance!

Here you go - just in case it's the firmware that's locking down overclocking and not the 'silicon lottery'.

https://drive.google.com/open?id=1y3poGmeOpeZuAy4rvfT4uZ1Z7tozjTLx (https://drive.google.com/open?id=1y3poGmeOpeZuAy4rvfT4uZ1Z7tozjTLx)

Cheers!

EDIT: Had inserted the wrong link by mistake initially. Have updated it. Should be working now.


Title: Re: Antminer Z9 mini overclocked
Post by: grinbuck on September 13, 2018, 05:55:52 PM
I don't think so. I currently have 5 z9 minis connected to 2 apw3++ psus on 110v without issue. However the above poster must be using a splitter to connect all 3 to 1 PSU which from what I understand is something you are NOT supposed to do.

Don't think it matters as long as the splitters are good quality and total draw is well within the rated limit. Time will tell though. Will report back if there are any issues.


Title: Re: Antminer Z9 mini overclocked
Post by: rackserver on September 13, 2018, 07:25:11 PM
https://service.bitmain.com/support/download?product=Antminer%20Z9%20mini

Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

Is it a new firmware form Batch-3? Has anyone tried it? What is about overclocking?



forget it. it cannot be overclocked. neither the SSH / WEB F12 edit mode is working.. stays at 500MHz, so you need the MAY for that. or the AUG 12th..


Title: Re: Antminer Z9 mini overclocked
Post by: fabry1999 on September 14, 2018, 10:02:39 PM
Do you know with a 750 the miner is slower than 700 ?

when I set up Z9 mini at 700 I get 15.5 Kh/s while at 750 14.5 Kh/s !


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 14, 2018, 10:11:15 PM
Do you know with a 750 the miner is slower than 700 ?

when I set up Z9 mini at 700 I get 15.5 Kh/s while at 750 14.5 Kh/s !
This is not correct. You need to be looking at the average hashrate taken over a long period of time, I assume you are either looking at the current hashrate (it fluctuates quite a bit) or not giving enough time to calculate an accurate average.
my average at 750 is 16.95 Ksols/s over the past 24 hours. Sometimes into the 17s


Title: Re: Antminer Z9 mini overclocked
Post by: fanatic26_ on September 14, 2018, 10:20:07 PM
Do you know with a 750 the miner is slower than 700 ?

when I set up Z9 mini at 700 I get 15.5 Kh/s while at 750 14.5 Kh/s !
This is not correct. You need to be looking at the average hashrate taken over a long period of time, I assume you are either looking at the current hashrate (it fluctuates quite a bit) or not giving enough time to calculate an accurate average.
my average at 750 is 16.95 Ksols/s over the past 24 hours. Sometimes into the 17s

Actually he is correct. Every batch 2 i have played with either has a reduced hashrate or none at all when running at 750. Personally I cant push mine past 675 without dropping boards.


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 14, 2018, 10:43:17 PM
Do you know with a 750 the miner is slower than 700 ?

when I set up Z9 mini at 700 I get 15.5 Kh/s while at 750 14.5 Kh/s !
This is not correct. You need to be looking at the average hashrate taken over a long period of time, I assume you are either looking at the current hashrate (it fluctuates quite a bit) or not giving enough time to calculate an accurate average.
my average at 750 is 16.95 Ksols/s over the past 24 hours. Sometimes into the 17s

Actually he is correct. Every batch 2 i have played with either has a reduced hashrate or none at all when running at 750. Personally I cant push mine past 675 without dropping boards.
Another thought I had is that the hashboards could be self throttling if the temps are too high at 750. Otherwise I could be wrong, i'll experiment with 700 for a day or so & then report back if I remember.


Title: Re: Antminer Z9 mini overclocked
Post by: ezeiza on September 14, 2018, 11:00:51 PM
Do you know with a 750 the miner is slower than 700 ?

when I set up Z9 mini at 700 I get 15.5 Kh/s while at 750 14.5 Kh/s !
This is not correct. You need to be looking at the average hashrate taken over a long period of time, I assume you are either looking at the current hashrate (it fluctuates quite a bit) or not giving enough time to calculate an accurate average.
my average at 750 is 16.95 Ksols/s over the past 24 hours. Sometimes into the 17s

Actually he is correct. Every batch 2 i have played with either has a reduced hashrate or none at all when running at 750. Personally I cant push mine past 675 without dropping boards.
Another thought I had is that the hashboards could be self throttling if the temps are too high at 750. Otherwise I could be wrong, i'll experiment with 700 for a day or so & then report back if I remember.

Are you talking about batch 2 or batch 3, because my batch 3 is working stable on 725 for more than 24hour hashing avg. 15.8 kh/s


Title: Re: Antminer Z9 mini overclocked
Post by: Gangzsta on September 15, 2018, 12:51:19 AM
Ezeiza,
Did you flash May's firmware on your batch 3's?


Title: Re: Antminer Z9 mini overclocked
Post by: ezeiza on September 15, 2018, 09:52:21 AM
Ezeiza,
Did you flash May's firmware on your batch 3's?

Yes


Title: Re: Antminer Z9 mini overclocked
Post by: MinerLamp on September 15, 2018, 01:53:17 PM
Ezeiza,
Did you flash May's firmware on your batch 3's?

Yes

Can somebody explain to a total noob how to do this? I just got my batch 3 and no option for overclocking, how do I flash older firmware?


Title: Re: Antminer Z9 mini overclocked
Post by: MinerLamp on September 15, 2018, 03:03:23 PM
Ezeiza,
Did you flash May's firmware on your batch 3's?

Yes

Can somebody explain to a total noob how to do this? I just got my batch 3 and no option for overclocking, how do I flash older firmware?

never mind, found the may firmware upstairs, works fine so far


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 15, 2018, 05:38:27 PM
About firmware versions and overclocking:


I've been doing some serious digging!!!


When you login to your Z9 mini you check on first page "System - Overview"
Batch 1, 2 and 3 all seem to have
"Hardware Version:" = 9.0.0.5

"File System Version:" tells you which firmware version your Z9 mini is running on.

There are at LEAST four (4) different firmware versions for z9 mini:

1. Sat May 26 20:42:30 CST 2018 = Antminer-Z9-Mini-201805262047-500M.tar.gz
2. Sun Aug 12 17:43:41 CST 2018 = ? ? ?
3. Thu Aug 30 14:57:48 CST 2018 = ? ? ?
4. Fri Aug 31 17:02:59 CST 2018 = Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz (the now only downloadable fw on Bitmains site for z9 mini.)


May 26 and Aug 12 firmware-versions are overclockable either from SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" and for the May 26 version ofcourse you just choose the frequence here you wan't just like God intended !


Aug 30 and Aug 31 versions just ignores any frequence value from cgminer.conf or with Chrome's "Inspection" method.
If you go to the "/www/pages/cgi-bin/minerAdvanced.cgi"-file and changes value and saving (after you already made the filesystem writable). After reboot it will have changed the file back!!!


Batch 1 seem to be very overclockable !!!
I, myself, are running my single batch 1 Z9 mini on 768 MHz and it's solid !!!


For Batch 2/3 I have seen quite a few running them on 668 MHz solid with both fw May 26(after upgrade) and Aug 12 firmware's !!!


WHEN you install(upgrade) the May 26 firmware using the page "System - Upgrade" I strongly recommend you UNcheck "Keep settings:" to get as clean install and as little problems as possible.


I really recommend you checkout mining at prohashing.com dispite their "high fee" (not high in relation to what I earn compared to MPH, nanopool and flypool after 48 hours, at least for me and my friends.) Read under "Help" on prohashing.com for further info and earning possibilities if you choose a single coin to hash.)


Howto - Pool settings for prohashing.com: (here you can see mine)
Url : stratum+tcp://prohashing.com:3336
(3336 is for Equihash algorithm that z9 mini calculates)
Worker : imine2
(imine2 is the username I choose to register with at prohashing.com)
Password : n=z9mini101
(I choose the name z9mini101 where the "101" stands for machines ip:10.0.1.101 in my home network and it's just a name to identify your machine for yourself and prohashing.com. Important for them and you if you have more than one machine being able to distinguish each machine.)


May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/cwnf6 (New link - Uploaded 10 october 2018)
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and THIS LINK should work for 30 days from october 10, 2018!)


Donations - I hope all my hard work will help up your earnings:

Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 15, 2018, 06:10:36 PM
About firmware versions and overclocking:

I've been doing some serious digging!!!

When you login to your Z9 mini you check on first page "System - Overview"
Batch 1, 2 and 3 all seem to have "Hardware Version:" = 9.0.0.5

"File System Version:" tells you which firmware version your Z9 mini is running on.

There are at LEAST four (4) different firmware versions for z9 mini:

1. Sat May 26 20:42:30 CST 2018 = Antminer-Z9-Mini-201805262047-500M.tar.gz
2. Sun Aug 12 17:43:41 CST 2018 = ???
3. Thu Aug 30 14:57:48 CST 2018 = ???
4. Fri Aug 31 17:02:59 CST 2018 = Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz (the now only downloadable fw on Bitmains site for z9 mini.)

May 26 and Aug 12 firmware-versions are overclockable either from SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" and for the May 26 version ofcourse you just choose the frequence here you wan't just like God intended !

Aug 30 and Aug 31 versions just ignores any frequence value from cgminer.conf or with Chrome's "Inspection" method.
If you go to the "/www/pages/cgi.bin/minerAdvanced.cgi"-file and changes value and saving after you made filesystem writable. After reboot it will have changed the file back!!!


Batch 1 seem to be very overclockable !!!
I, myself, are running my single batch 1 Z9 mini on 768 MHz and it's solid !!!


For Batch 2/3 I have seen quite a few running them on 668 MHz solid with both fw May 26(after upgrade) and Aug 12 firmware's !!!


WHEN you install the May 26 firmware I strongly recommend you UNcheck "Keep settings:" to get as clean install and as little problems as possible.


I really recommend you checkout mining at prohashing.com dispite their "high fee" (not high in relation to what I earn compared to MPH, nanopool and flypool after 48 hours, at least for me and my friends.) Read under "Help" on prohashing.com for further info and earning possibilities if you choose a single coin to hash.)


Pool settings for prohashing.com: (here you can see mine)
Url : stratum+tcp://prohashing.com:3336   (3336 is for Equihash algorithm that z9 mini calculates)
Worker : imine2   (the username I registered with at prohashing.com)
Password : n=z9mini101   (the "101" stands for machines ip:10.0.1.101 in my home network and it's just a name to identify your machine if you have more then one.)


File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/fwcqd
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and should work for 30 days from september 10, 2018!)


Donations - I hope all my hard work will help up your earnings:

Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

Do you earn more on Prohashing then Mining Pool Hub?... I have been wondering where the best place is to point my Z9's ..
Will Prohashing mine on Autoswitch?. BTCP, HUSH , XEC, ZCL, Ect and payout in BTC?
Thanks


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 15, 2018, 07:15:30 PM

Do you earn more on Prohashing then Mining Pool Hub?... I have been wondering where the best place is to point my Z9's ..
Will Prohashing mine on Autoswitch?. BTCP, HUSH , XEC, ZCL, Ect and payout in BTC?
Thanks


If you point to
Url : stratum+tcp://prohashing.com:3336
it WILL be autoswitch.

If you only want to mine a single coin you will need to have something like this:
password : c=zcash n=You_choose_some_name_and_or_number_that_makes_it_easy_for_you_to_identify
This is if you wan't to hash only one coin and in this example it was Zcash.

Letting all your machines mine one and same single coin (not solo mining) WITHOUT converting will give lower fee AND share rewards you don't get in my case.

I convert to BTC and LTC.
Because I get immidiate conversion on prohashing and can choose have many % of each like 80% BTC and 20% LTC conversion I wan't I do not risk loosing as much because of the loong unknown time it takes for MPH to do the autoexchange since BTC can move alot in that time.


Furthermore on MPH the multialgo on port 17023 is not in sync whith Whattomine.com and also seems to move big hashing-power between the different algorithm's in a way that I beleive influense the other algorithms negatively.


As I understand it, on prohashing.com I can be rewarded for parts of work my machine done (read "Help" on their site) even when "too late" and I seem to get better "2hr avarage solrate" hashingspeed for my z9mini and for other friends they have been getting ridiculus speeds on their Innosilicon A9 ZMaster's when loggin in to them as well as on prohashing "2hr avarage solrate" hashingspeed both in "balance" and "performance"-mode with different firmwares AND the problem they had with there A9's whatever firmware with restarting because memory full seems to be gone. Their logs dont't get clogged up with as much as with MPH, nanopool and flypool and others. Before they had to restore to factory defaults between 1-2 weeks apart just to keep them spinning for more than something like 8 hours before their A9's would restart. After facory restore they could get 1-1.5 days and for every restart it would get worse.


Seems like prohashing.com calculates each and every machines hashingpower and timedelays and manage to choose which work/coin/difficulty to give to each machine with better earnings as a result.

My z9mini has also shown quite a few impressive 2hr delta hashing speed up towards 20ksol/s.
But hashing speed goes up and down.


I have also "found block":
Algorith     Coin        blockrewards   fee            difficulty         value       status
Equihash   Komodocoin   3   0.001356   1,443,172,861   $2.9901   Mature


I just say that give prohashing.com a day or soo if you feel that you are not satisfied with the miningpool(s) you are using now!


(And I live in Europe so I do NOT have anything to do in any way with prohashing other then being a little bit more satisfied and hopeful with my limited earnings.)

If someone else tries prohashing.com I hope they will give their oppinion whatever it is !!!


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 15, 2018, 08:27:55 PM

Do you earn more on Prohashing then Mining Pool Hub?... I have been wondering where the best place is to point my Z9's ..
Will Prohashing mine on Autoswitch?. BTCP, HUSH , XEC, ZCL, Ect and payout in BTC?
Thanks


If you point to
Url : stratum+tcp://prohashing.com:3336
it WILL be autoswitch.
You will need to have something like this
password : c=zcash n=your_login_name_at_prohashing.com
if you wan't to get only one coin and in this example it was Zcash.

Letting all your machines mine one and same single coin (not solo mining) WITHOUT converting will give lower fee AND share rewards you don't get in my case.

I convert to BTC and LTC.
Because I get immidiate conversion on prohashing and can choose have many % of each like 80% BTC and 20% LTC conversion I wan't I do not risk loosing as much because of the loong unknown time it takes for MPH to do the autoexchange since BTC can move alot in that time.


Furthermore on MPH the multialgo on port 17023 is not in sync whith Whattomine.com and also seems to move big hashing-power between the different algorithm's in a way that I beleive influense the other algorithms negatively.


As I understand it, on prohashing.com I can be rewarded for parts of work my machine done (read "Help" on their site) even when "too late" and I seem to get better "2hr avarage solrate" hashingspeed for my z9mini and for other friends they have been getting ridiculus speeds on their Innosilicon A9 ZMaster's when loggin in to them as well as on prohashing "2hr avarage solrate" hashingspeed both in "balance" and "performance"-mode with different firmwares AND the problem they had with there A9's whatever firmware with restarting because memory full seems to be gone. Their logs dont't get clogged up with as much as with MPH, nanopool and flypool and others. Before they had to restore to factory defaults between 1-2 weeks apart just to keep them spinning for more than something like 8 hours before their A9's would restart. After facory restore they could get 1-1.5 days and for every restart it would get worse.


Seems like prohashing.com calculates each and every machines hashingpower and timedelays and manage to choose which work/coin/difficulty to give to each machine with better earnings as a result.

My z9mini has also shown quite a few impressive 2hr delta hashing speed up towards 20ksol/s.
But hashing speed goes up and down.


I have also "found block":
Algorith     Coin        blockrewards   fee            difficulty         value       status
Equihash   Komodocoin   3   0.001356   1,443,172,861   $2.9901   Mature


I just say that give prohashing.com a day or soo if you feel that you are not satisfied with the miningpool(s) you are using now!


(And I live in Europe so I do NOT have anything to do in any way with prohashing other then being a little bit more satisfied and hopeful with my limited earnings.)

If someone else tries prohashing.com I hope they will give their oppinion whatever it is !!!
Thank you for your very detailed reply.. I am going to try to get my head around all of that... Let me re read it over again and ill have a bash at setting up an account. Thanks again  :)


Title: Re: Antminer Z9 mini overclocked
Post by: mikeywith on September 15, 2018, 08:51:24 PM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)


it's the other way around. it is dangerous to connect multiple PSUs to a single ASIC.  you can connect as many asics you want to a PSU as long as both your PSU and the 6pin connected can handle the power needed. from a theoretical point of view you can have 4 z9 minis connected to 1 APW 1600w psu ( each z9 mini takes about 350w if not overclocked" ). how ever i would not do that until i verify that the 6 pin connectors which are going to be split can actually handle the load.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 15, 2018, 09:15:47 PM

Do you earn more on Prohashing then Mining Pool Hub?... I have been wondering where the best place is to point my Z9's ..
Will Prohashing mine on Autoswitch?. BTCP, HUSH , XEC, ZCL, Ect and payout in BTC?
Thanks


If you point to
Url : stratum+tcp://prohashing.com:3336
it WILL be autoswitch.
You will need to have something like this
password : c=zcash n=your_login_name_at_prohashing.com
if you wan't to get only one coin and in this example it was Zcash.

Letting all your machines mine one and same single coin (not solo mining) WITHOUT converting will give lower fee AND share rewards you don't get in my case.

I convert to BTC and LTC.
Because I get immidiate conversion on prohashing and can choose have many % of each like 80% BTC and 20% LTC conversion I wan't I do not risk loosing as much because of the loong unknown time it takes for MPH to do the autoexchange since BTC can move alot in that time.




Furthermore on MPH the multialgo on port 17023 is not in sync whith Whattomine.com and also seems to move big hashing-power between the different algorithm's in a way that I beleive influense the other algorithms negatively.


As I understand it, on prohashing.com I can be rewarded for parts of work my machine done (read "Help" on their site) even when "too late" and I seem to get better "2hr avarage solrate" hashingspeed for my z9mini and for other friends they have been getting ridiculus speeds on their Innosilicon A9 ZMaster's when loggin in to them as well as on prohashing "2hr avarage solrate" hashingspeed both in "balance" and "performance"-mode with different firmwares AND the problem they had with there A9's whatever firmware with restarting because memory full seems to be gone. Their logs dont't get clogged up with as much as with MPH, nanopool and flypool and others. Before they had to restore to factory defaults between 1-2 weeks apart just to keep them spinning for more than something like 8 hours before their A9's would restart. After facory restore they could get 1-1.5 days and for every restart it would get worse.


Seems like prohashing.com calculates each and every machines hashingpower and timedelays and manage to choose which work/coin/difficulty to give to each machine with better earnings as a result.

My z9mini has also shown quite a few impressive 2hr delta hashing speed up towards 20ksol/s.
But hashing speed goes up and down.


I have also "found block":
Algorith     Coin        blockrewards   fee            difficulty         value       status
Equihash   Komodocoin   3   0.001356   1,443,172,861   $2.9901   Mature


I just say that give prohashing.com a day or soo if you feel that you are not satisfied with the miningpool(s) you are using now!


(And I live in Europe so I do NOT have anything to do in any way with prohashing other then being a little bit more satisfied and hopeful with my limited earnings.)

If someone else tries prohashing.com I hope they will give their oppinion whatever it is !!!
Mate, how do i set up workers?...i linked my coinbase acc and payout proportions in BTC.. filled in the UK resident form.. bit lost now.. whats all this arguments stuff lol Thanks


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 15, 2018, 09:42:08 PM

Mate, how do i set up workers?...i linked my coinbase acc and payout proportions in BTC.. filled in the UK resident form.. bit lost now.. whats all this arguments stuff lol Thanks

I see that I made a mistake under "Password" regarding "n="

You choose some name and / or number that makes it easy for you to identify like:
z9mini001
z9mini002

or whatever suits you!!!


Login to your z9 mini's number 1 - 3:
Goto Page "Miner Configuration - General Settings"

z9mini number 1
Pool 1:
URL: stratum+tcp://prohashing.com:3336
Worker: your_login_name_at_prohashing.com
Password: n=z9mini001

z9mini number 2
Pool 1:
URL: stratum+tcp://prohashing.com:3336
Worker: your_login_name_at_prohashing.com
Password: n=z9mini002

z9mini number 3
Pool 1:
URL: stratum+tcp://prohashing.com:3336
Worker: your_login_name_at_prohashing.com
Password: n=z9mini003

and so on ...


Best of luck!!!


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 15, 2018, 09:48:45 PM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)


it's the other way around. it is dangerous to connect multiple PSUs to a single ASIC.  you can connect as many asics you want to a PSU as long as both your PSU and the 6pin connected can handle the power needed. from a theoretical point of view you can have 4 z9 minis connected to 1 APW 1600w psu ( each z9 mini takes about 350w if not overclocked" ). how ever i would not do that until i verify that the 6 pin connectors which are going to be split can actually handle the load.


https://bitcointalk.org/index.php?topic=1739630.0


You don't want to run your engine on max RPM to loong.

It's the same with PSU's.


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 15, 2018, 09:50:06 PM

Mate, how do i set up workers?...i linked my coinbase acc and payout proportions in BTC.. filled in the UK resident form.. bit lost now.. whats all this arguments stuff lol Thanks

I see that I made a mistake under "Password" regarding "n="

You choose some name and / or number that makes it easy for you to identify like:
z9mini001
z9mini002

or whatever suits you!!!


Login to your z9 mini's number 1 - 3:
Goto Page "Miner Configuration - General Settings"

z9mini number 1
Pool 1:
URL: stratum+tcp://prohashing.com:3336
Worker: your_login_name_at_prohashing.com
Password: n=z9mini001

z9mini number 2
Pool 1:
URL: stratum+tcp://prohashing.com:3336
Worker: your_login_name_at_prohashing.com
Password: n=z9mini002

z9mini number 3
Pool 1:
URL: stratum+tcp://prohashing.com:3336
Worker: your_login_name_at_prohashing.com
Password: n=z9mini003

and so on ...


Best of luck!!!
ok cool il give it another looking at
Thank you


Title: Re: Antminer Z9 mini overclocked
Post by: ezeiza on September 15, 2018, 11:41:16 PM
About firmware versions and overclocking:


I've been doing some serious digging!!!


When you login to your Z9 mini you check on first page "System - Overview"
Batch 1, 2 and 3 all seem to have
"Hardware Version:" = 9.0.0.5

"File System Version:" tells you which firmware version your Z9 mini is running on.

There are at LEAST four (4) different firmware versions for z9 mini:

1. Sat May 26 20:42:30 CST 2018 = Antminer-Z9-Mini-201805262047-500M.tar.gz
2. Sun Aug 12 17:43:41 CST 2018 = ? ? ?
3. Thu Aug 30 14:57:48 CST 2018 = ? ? ?
4. Fri Aug 31 17:02:59 CST 2018 = Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz (the now only downloadable fw on Bitmains site for z9 mini.)

How do you get to 768, please explain


May 26 and Aug 12 firmware-versions are overclockable either from SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" and for the May 26 version ofcourse you just choose the frequence here you wan't just like God intended !


Aug 30 and Aug 31 versions just ignores any frequence value from cgminer.conf or with Chrome's "Inspection" method.
If you go to the "/www/pages/cgi-bin/minerAdvanced.cgi"-file and changes value and saving (after you already made the filesystem writable). After reboot it will have changed the file back!!!


Batch 1 seem to be very overclockable !!!
I, myself, are running my single batch 1 Z9 mini on 768 MHz and it's solid !!!


For Batch 2/3 I have seen quite a few running them on 668 MHz solid with both fw May 26(after upgrade) and Aug 12 firmware's !!!


WHEN you install(upgrade) the May 26 firmware using the page "System - Upgrade" I strongly recommend you UNcheck "Keep settings:" to get as clean install and as little problems as possible.


I really recommend you checkout mining at prohashing.com dispite their "high fee" (not high in relation to what I earn compared to MPH, nanopool and flypool after 48 hours, at least for me and my friends.) Read under "Help" on prohashing.com for further info and earning possibilities if you choose a single coin to hash.)


Howto - Pool settings for prohashing.com: (here you can see mine)
Url : stratum+tcp://prohashing.com:3336
(3336 is for Equihash algorithm that z9 mini calculates)
Worker : imine2
(imine2 is the username I choose to register with at prohashing.com)
Password : n=z9mini101
(I choose the name z9mini101 where the "101" stands for machines ip:10.0.1.101 in my home network and it's just a name to identify your machine for yourself and prohashing.com. Important for them and you if you have more than one machine being able to distinguish each machine.)


May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/fwcqd
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and should work for 30 days from september 10, 2018!)


Donations - I hope all my hard work will help up your earnings:

Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 16, 2018, 08:04:05 AM
About firmware versions and overclocking:

I've been doing some serious digging!!!
...



YOU ask:

How do you get to 768, please explain


May 26 and Aug 12 firmware-versions are overclockable either from SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" and for the May 26 version ofcourse you just choose the frequence here you wan't just like God intended !


THIS is how:

" ... SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" ... "

I use the program "Putty.exe" on windows 10 machine to SSH into my z9 mini.

Step:
0. Start Putty.exe and input ip-adress for machine to SSH into. (For my z9 mini in my home network ip = 10.0.1.101)
1. Press "Enter"-button
2. First time putty.exe SSH into a machine it ask's you to approve that machines ssh_host-key
3. Press "Yes-button" on pop-up window and now the terminal window opens where you type in your commands
4. root
5. Press "Enter"-button
6. root    (if factory default or use the password you've changed to when login in to your z9 mini)
7. Press "Enter"-button
8. cd /config
9. Press "Enter"-button
10. vi cgminer.conf  (file cgminer.conf opened up in the "vi"-editor)(BE CAREFUL - google vi editor and learn howto use it)
11. Press "Enter"-button
12. use "arrow"-keys and move down to "bitmain-freq": "500"
13. Press "i"-button (this is for insert-mode) (be VERY careful NOT to change/delete/add anything else but...)
14. change "500" to "768"
15. Press "Esc"-button (but ONLY once)
16. :wq!
17. Press "Enter"-button
18. cat cgminer.conf
19. Press "Enter"-button
20. Now you see the text in cgminer.conf and can verify that you have changed to "768" and nothing else has changed.
21. /etc/init.d/cgminer.sh restart
22. Press "Enter"-button
23. Now your z9 mini reboots and voila !

This will ONLY work if that specific z9 mini machine can handle 768 MHz !!!

My specific z9 mini will NOT run solid on 775 MHz or above.

IF I go above 768:
At 775 it starts up all three chains without errors but after 5-15 minutes or so I will see "KSol/S(RT)"-value going down slowly and continue down and I will go into page "Miner configuration - Advanced settings" and choose 750 and then press "Save&Apply"-button at bottom right corner.

z9 mini restarts at 750 MHz

(Going to high and it will not even start up all three chains !)


Now I go thrue step 0-23 and again set it to 768 MHz.

I've done this a few times and now tested and know that MY specific z9 mini can handle 768 MHz but nothing above that.
Now I just let it run and run and run at 768 MHz.

Only time I restart is if I change mining pool or try any different settings at some miningpool and if thunder and lightning outside I will unplugg my z9 mini PSU from the 240V connector in my wall.

BUT it's easier to use Chrome to change the value to 768 or whtever :)

(There are youtube video and other poeple on this forum that already explains how that is done!)


Title: Re: Antminer Z9 mini overclocked
Post by: rackserver on September 16, 2018, 11:21:55 AM
Does anybody know a method how to raise / change the voltage for the ASIC chips?
I would like a software solution, not a hard (physical) mod. (as we have at the S9 for example)
thanks


Title: Re: Antminer Z9 mini overclocked
Post by: mikeywith on September 16, 2018, 01:56:29 PM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)


it's the other way around. it is dangerous to connect multiple PSUs to a single ASIC.  you can connect as many asics you want to a PSU as long as both your PSU and the 6pin connected can handle the power needed. from a theoretical point of view you can have 4 z9 minis connected to 1 APW 1600w psu ( each z9 mini takes about 350w if not overclocked" ). how ever i would not do that until i verify that the 6 pin connectors which are going to be split can actually handle the load.


https://bitcointalk.org/index.php?topic=1739630.0


You don't want to run your engine on max RPM to loong.

It's the same with PSU's.


this is completely based on your own or someone else's speculations and it has no solid proof what so ever, the max you see on the label is the safe point which a good psu should handle all day long. I have been pulling about 970w of  a 1000w psus on my rigs for years and zero problems, it all comes down to the room ventilation and the quality of your PSU. bitmain psu is a solid psu. i have some A3 and S9s slightly over clocked consuming close to 1500 for ages and never a problem with the PSU. you can test it out yourself if you like. 


Title: Re: Antminer Z9 mini overclocked
Post by: d.v. on September 16, 2018, 03:15:27 PM
Does anybody know a method how to raise / change the voltage for the ASIC chips?
I would like a software solution, not a hard (physical) mod. (as we have at the S9 for example)
thanks

no can do, you will need to mess with the hardware to achieve this. bitmain has locked it down. it can be done and some have done it to achieve 20k sols but u better have a electrical engineering background or a good buddy who does and some equipment too.


Title: Re: Antminer Z9 mini overclocked
Post by: shater on September 16, 2018, 03:59:53 PM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)


it's the other way around. it is dangerous to connect multiple PSUs to a single ASIC.  you can connect as many asics you want to a PSU as long as both your PSU and the 6pin connected can handle the power needed. from a theoretical point of view you can have 4 z9 minis connected to 1 APW 1600w psu ( each z9 mini takes about 350w if not overclocked" ). how ever i would not do that until i verify that the 6 pin connectors which are going to be split can actually handle the load.


https://bitcointalk.org/index.php?topic=1739630.0


You don't want to run your engine on max RPM to loong.

It's the same with PSU's.


this is completely based on your own or someone else's speculations and it has no solid proof what so ever, the max you see on the label is the safe point which a good psu should handle all day long. I have been pulling about 970w of  a 1000w psus on my rigs for years and zero problems, it all comes down to the room ventilation and the quality of your PSU. bitmain psu is a solid psu. i have some A3 and S9s slightly over clocked consuming close to 1500 for ages and never a problem with the PSU. you can test it out yourself if you like. 

Yep, agreed. I haven't had any problems with my Z9 running at max settings. Bitmain left lots of room for tuning in these things.


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 16, 2018, 05:22:07 PM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)


it's the other way around. it is dangerous to connect multiple PSUs to a single ASIC.  you can connect as many asics you want to a PSU as long as both your PSU and the 6pin connected can handle the power needed. from a theoretical point of view you can have 4 z9 minis connected to 1 APW 1600w psu ( each z9 mini takes about 350w if not overclocked" ). how ever i would not do that until i verify that the 6 pin connectors which are going to be split can actually handle the load.


https://bitcointalk.org/index.php?topic=1739630.0


You don't want to run your engine on max RPM to loong.

It's the same with PSU's.


this is completely based on your own or someone else's speculations and it has no solid proof what so ever, the max you see on the label is the safe point which a good psu should handle all day long. I have been pulling about 970w of  a 1000w psus on my rigs for years and zero problems, it all comes down to the room ventilation and the quality of your PSU. bitmain psu is a solid psu. i have some A3 and S9s slightly over clocked consuming close to 1500 for ages and never a problem with the PSU. you can test it out yourself if you like.  

Yep, agreed. I haven't had any problems with my Z9 running at max settings. Bitmain left lots of room for tuning in these things.


in the link I gave this one is on page 2:
https://bitcointalk.org/index.php?topic=1739630.msg17440217#msg17440217

And this one:
https://bitcointalk.org/index.php?topic=1739630.msg17440489#msg17440489

You guys are correct!!!
The Label doesn't give the full answer !!!

For all the people who read your answer's they might not know as much as you guys.

Do they have 120V or 240V?
50Hz or 60Hz ?
Does it matter ?

Do you RECOMMEND that everyone push their PSU's to the limit according to the label on their PSU's whatever brand, age (manufacturing year), earlier usages if not new from the store, voltage, ... ???

If not, WHY ?

Everything will always go well until it goes wrong !!!


Title: Re: Antminer Z9 mini overclocked
Post by: mikeywith on September 17, 2018, 12:37:42 AM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)


it's the other way around. it is dangerous to connect multiple PSUs to a single ASIC.  you can connect as many asics you want to a PSU as long as both your PSU and the 6pin connected can handle the power needed. from a theoretical point of view you can have 4 z9 minis connected to 1 APW 1600w psu ( each z9 mini takes about 350w if not overclocked" ). how ever i would not do that until i verify that the 6 pin connectors which are going to be split can actually handle the load.


https://bitcointalk.org/index.php?topic=1739630.0


You don't want to run your engine on max RPM to loong.

It's the same with PSU's.


this is completely based on your own or someone else's speculations and it has no solid proof what so ever, the max you see on the label is the safe point which a good psu should handle all day long. I have been pulling about 970w of  a 1000w psus on my rigs for years and zero problems, it all comes down to the room ventilation and the quality of your PSU. bitmain psu is a solid psu. i have some A3 and S9s slightly over clocked consuming close to 1500 for ages and never a problem with the PSU. you can test it out yourself if you like.  

Yep, agreed. I haven't had any problems with my Z9 running at max settings. Bitmain left lots of room for tuning in these things.


in the link I gave this one is on page 2:
https://bitcointalk.org/index.php?topic=1739630.msg17440217#msg17440217

And this one:
https://bitcointalk.org/index.php?topic=1739630.msg17440489#msg17440489

You guys are correct!!!
The Label doesn't give the full answer !!!

For all the people who read your answer's they might not know as much as you guys.

Do they have 120V or 240V?
50Hz or 60Hz ?
Does it matter ?

Do you RECOMMEND that everyone push their PSU's to the limit according to the label on their PSU's whatever brand, age (manufacturing year), earlier usages if not new from the store, voltage, ... ???

If not, WHY ?

Everything will always go well until it goes wrong !!!


you don't have to push your PSU to the limit if you don't have to :D. also you do not want a lot of spare power sitting there doing nothing when you have to buy another psu ! . if there is a room on your psu which you can use then just use it.

I don't have a 120v circuit i think only people in the U.S and a few other countries have that old power infrastructure. i don't know how much exactly in WATS you would be able to pull from APW psu but i am sure it is not 1600w. i think 1200w is the BEST you could wish for but then dyor regarding that matter.

assuming you can get a 1200w of it, then it's safe to say that you can consume 1200w from it , all year long :D.



 


Title: Re: Antminer Z9 mini overclocked
Post by: mikeywith on September 17, 2018, 12:45:02 AM


** so this is what bitmain has on thier page https://shop.bitmain.com/product/detail?pid=000201809111803105065Lb6UvUc068A

APW3++

Quote
The APW3++ can deliver a maximum power of only 1200W if it is connected to a 110V mains power supply. To obtain the rated power of 1600W, the APW3++ must be connected to a 220-240V

APW7

Quote
"The APW7 can deliver a maximum power of only 1000W if it is connected to a 110V mains power supply. To obtain the rated power of 1800W, the APW7 must be connected to a 220-240V"


so if you are using 110 vs then you should get the APW3++ which give you 1200w . if you are using 220v then you should get APW7 as it gives you 1800w instead of 1600w.


Title: Re: Antminer Z9 mini overclocked
Post by: Meteorite777 on September 17, 2018, 03:05:02 AM
I just got my ship notification on my mini from Sep 20-30 batch. I ordered within an hour or two of the batch going live though so i'm probably one of the first.


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 17, 2018, 03:22:03 PM
Do you know with a 750 the miner is slower than 700 ?

when I set up Z9 mini at 700 I get 15.5 Kh/s while at 750 14.5 Kh/s !
This is not correct. You need to be looking at the average hashrate taken over a long period of time, I assume you are either looking at the current hashrate (it fluctuates quite a bit) or not giving enough time to calculate an accurate average.
my average at 750 is 16.95 Ksols/s over the past 24 hours. Sometimes into the 17s

Actually he is correct. Every batch 2 i have played with either has a reduced hashrate or none at all when running at 750. Personally I cant push mine past 675 without dropping boards.
Another thought I had is that the hashboards could be self throttling if the temps are too high at 750. Otherwise I could be wrong, i'll experiment with 700 for a day or so & then report back if I remember.

Are you talking about batch 2 or batch 3, because my batch 3 is working stable on 725 for more than 24hour hashing avg. 15.8 kh/s

I'm talking about batch 1, my batch 2s fail if I even attempt that. I don't know what to tell you, I let it run at 700 over the weekend and am getting 15.45 MH/s average as opposed to the mid 17 range on 750 as expected. If yours is running slower on 750 it's probably a temp issue or something. Sorry I can't be more helpful.


Title: Re: Antminer Z9 mini overclocked
Post by: adrian5 on September 17, 2018, 04:54:07 PM
Any package is overclocked. But this is not an easy decision.

https://ibb.co/m91BaK (https://ibb.co/m91BaK)
https://ibb.co/dkAhhz (https://ibb.co/dkAhhz)
What is the power consumption at 900Mhz and 20Ksol?


Title: Re: Antminer Z9 mini overclocked
Post by: EddieSpaghetti on September 17, 2018, 06:28:40 PM
About firmware versions and overclocking:

I've been doing some serious digging!!!

When you login to your Z9 mini you check on first page "System - Overview"
Batch 1, 2 and 3 all seem to have "Hardware Version:" = 9.0.0.5

"File System Version:" tells you which firmware version your Z9 mini is running on.

There are at LEAST four (4) different firmware versions for z9 mini:

1. Sat May 26 20:42:30 CST 2018 = Antminer-Z9-Mini-201805262047-500M.tar.gz
2. Sun Aug 12 17:43:41 CST 2018 = ???
3. Thu Aug 30 14:57:48 CST 2018 = ???
4. Fri Aug 31 17:02:59 CST 2018 = Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz (the now only downloadable fw on Bitmains site for z9 mini.)

May 26 and Aug 12 firmware-versions are overclockable either from SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" and for the May 26 version ofcourse you just choose the frequence here you wan't just like God intended !

Aug 30 and Aug 31 versions just ignores any frequence value from cgminer.conf or with Chrome's "Inspection" method.
If you go to the "/www/pages/cgi.bin/minerAdvanced.cgi"-file and changes value and saving after you made filesystem writable. After reboot it will have changed the file back!!!


Batch 1 seem to be very overclockable !!!
I, myself, are running my single batch 1 Z9 mini on 768 MHz and it's solid !!!


For Batch 2/3 I have seen quite a few running them on 668 MHz solid with both fw May 26(after upgrade) and Aug 12 firmware's !!!


WHEN you install the May 26 firmware I strongly recommend you UNcheck "Keep settings:" to get as clean install and as little problems as possible.


I really recommend you checkout mining at prohashing.com dispite their "high fee" (not high in relation to what I earn compared to MPH, nanopool and flypool after 48 hours, at least for me and my friends.) Read under "Help" on prohashing.com for further info and earning possibilities if you choose a single coin to hash.)


Pool settings for prohashing.com: (here you can see mine)
Url : stratum+tcp://prohashing.com:3336   (3336 is for Equihash algorithm that z9 mini calculates)
Worker : imine2   (the username I registered with at prohashing.com)
Password : n=z9mini101   (the "101" stands for machines ip:10.0.1.101 in my home network and it's just a name to identify your machine if you have more then one.)


File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/fwcqd
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and should work for 30 days from september 10, 2018!)


Donations - I hope all my hard work will help up your earnings:

Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

Do you earn more on Prohashing then Mining Pool Hub?... I have been wondering where the best place is to point my Z9's ..
Will Prohashing mine on Autoswitch?. BTCP, HUSH , XEC, ZCL, Ect and payout in BTC?
Thanks

Any idea where to get this firmware :

2. Sun Aug 12 17:43:41 CST 2018 = ? ? ?



Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 17, 2018, 07:50:46 PM
About firmware versions and overclocking:

I've been doing some serious digging!!!

When you login to your Z9 mini you check on first page "System - Overview"
Batch 1, 2 and 3 all seem to have "Hardware Version:" = 9.0.0.5

"File System Version:" tells you which firmware version your Z9 mini is running on.

There are at LEAST four (4) different firmware versions for z9 mini:

1. Sat May 26 20:42:30 CST 2018 = Antminer-Z9-Mini-201805262047-500M.tar.gz
2. Sun Aug 12 17:43:41 CST 2018 = ???
3. Thu Aug 30 14:57:48 CST 2018 = ???
4. Fri Aug 31 17:02:59 CST 2018 = Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz (the now only downloadable fw on Bitmains site for z9 mini.)

May 26 and Aug 12 firmware-versions are overclockable either from SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" and for the May 26 version ofcourse you just choose the frequence here you wan't just like God intended !

Aug 30 and Aug 31 versions just ignores any frequence value from cgminer.conf or with Chrome's "Inspection" method.
If you go to the "/www/pages/cgi.bin/minerAdvanced.cgi"-file and changes value and saving after you made filesystem writable. After reboot it will have changed the file back!!!


Batch 1 seem to be very overclockable !!!
I, myself, are running my single batch 1 Z9 mini on 768 MHz and it's solid !!!


For Batch 2/3 I have seen quite a few running them on 668 MHz solid with both fw May 26(after upgrade) and Aug 12 firmware's !!!


WHEN you install the May 26 firmware I strongly recommend you UNcheck "Keep settings:" to get as clean install and as little problems as possible.


I really recommend you checkout mining at prohashing.com dispite their "high fee" (not high in relation to what I earn compared to MPH, nanopool and flypool after 48 hours, at least for me and my friends.) Read under "Help" on prohashing.com for further info and earning possibilities if you choose a single coin to hash.)


Pool settings for prohashing.com: (here you can see mine)
Url : stratum+tcp://prohashing.com:3336   (3336 is for Equihash algorithm that z9 mini calculates)
Worker : imine2   (the username I registered with at prohashing.com)
Password : n=z9mini101   (the "101" stands for machines ip:10.0.1.101 in my home network and it's just a name to identify your machine if you have more then one.)


File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/fwcqd
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and should work for 30 days from september 10, 2018!)


Donations - I hope all my hard work will help up your earnings:

Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

Do you earn more on Prohashing then Mining Pool Hub?... I have been wondering where the best place is to point my Z9's ..
Will Prohashing mine on Autoswitch?. BTCP, HUSH , XEC, ZCL, Ect and payout in BTC?
Thanks

Any idea where to get this firmware :

2. Sun Aug 12 17:43:41 CST 2018 = ? ? ?



No,
as far as I know the only two (2) firmware's that been downloadable from Bitmain's site are:
1. Sat May 26 20:42:30 CST 2018 = Antminer-Z9-Mini-201805262047-500M.tar.gz
and
4. Fri Aug 31 17:02:59 CST 2018 = Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

The other two was preinstalled on delivered machines I have helped friends to setup.

Can't imagine what could be better with aug 12 firmware since it is limited in which frequence you can set without "hacking" via Chrome or SSH ?

today thoose machines all run stable on the may 26 firmware without any problem and they are all overclocked to 668 or 675 MHz.


Title: Re: Antminer Z9 mini overclocked
Post by: ZEDIX360 on September 18, 2018, 07:55:29 PM
Hello  i just contact Bitmain and they don"t sell any hashboard for the Mini z9......


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 18, 2018, 09:04:56 PM
I have just dropped my freq to 637 and the few that were giving me hassle on 650 plus are hashing higher at 637  :o maybe try lowering the rate... see what you think...


Title: Re: Antminer Z9 mini overclocked
Post by: omars2010 on September 18, 2018, 11:11:50 PM
Could you pls help me to figure out how to solve the problem on board no.2 ?
I have x on board 2, however, if i decreased the frequency the x will be removed.
https://i.postimg.cc/HWSGkKS8/20180918_224555.jpg
https://postimg.cc/xqbpssV9


Title: Re: Antminer Z9 mini overclocked
Post by: yrk1957 on September 19, 2018, 12:09:25 AM
Could you pls help me to figure out how to solve the problem on board no.2 ?
I have x on board 2, however, if i decreased the frequency the x will be removed.
https://i.postimg.cc/HWSGkKS8/20180918_224555.jpg
https://postimg.cc/xqbpssV9

"Decrease frequency" is the only solution as of now.


Title: Re: Antminer Z9 mini overclocked
Post by: Captain Crypto Pants on September 19, 2018, 03:21:54 AM
My Z9 mini has been running for 44 days straight at 750M with an average sol rate of 16.37.

I have seen my Zcash per day steadily drop for the last few weeks and is now at 0.0927 Zcash per day. 

This machine has been great but it looks like the full size Z9s have started to come online and the hashrates are going up big time.  :(  Fun while it lasted!


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on September 19, 2018, 03:26:59 AM
My Z9 mini has been running for 44 days straight at 750M with an average sol rate of 16.37.

I have seen my Zcash per day steadily drop for the last few weeks and is now at 0.0927 Zcash per day. 

This machine has been great but it looks like the full size Z9s have started to come online and the hashrates are going up big time.  :(  Fun while it lasted!

I don't think the Z9s have come online yet.... 2 of mine land tomorrow from batch1.

-j


Title: Re: Antminer Z9 mini overclocked
Post by: ltcsprite on September 19, 2018, 03:41:17 AM
My Z9 mini has been running for 44 days straight at 750M with an average sol rate of 16.37.

I have seen my Zcash per day steadily drop for the last few weeks and is now at 0.0927 Zcash per day. 

This machine has been great but it looks like the full size Z9s have started to come online and the hashrates are going up big time.  :(  Fun while it lasted!

0.0927 ZEC per day?

Lol. where?


Title: Re: Antminer Z9 mini overclocked
Post by: boo50 on September 19, 2018, 04:42:29 AM
0.0927 ZEC per day?

Lol. where?
not from one z9 for sure.


Title: Re: Antminer Z9 mini overclocked
Post by: Meteorite777 on September 19, 2018, 06:23:42 PM
I just received my Z9 Mini from Batch 3 ($793, Sep 20 - 30th Batch). US, DHL delivery, no customs.

It seems they have fixed the workaround for overclocking or used a different firmware on this batch that locked down overclocking even more. The filesystem/firmware is dated Fri, August 31st rather than Sun, Aug 12th like Batch 2.
When attempting to use the advanced editor 'F12' and change the frequency manually it just ignores the change and chugs along at 500 freq.

I'm seeing around 11 ksol/s with no OC currently. I'll have to try another work around later like flashing an older version of the firmware.


Title: Re: Antminer Z9 mini overclocked
Post by: fanatic26_ on September 19, 2018, 06:35:47 PM
I'm seeing around 11 ksol/s with no OC currently. I'll have to try another work around later like flashing an older version of the firmware.

There is no magic to it, just flash batch 1 firmware and you dont have to do all that random editing and whatnot, you can just select from a drop down menu.

I am curious to see if the batch 3s are even less overclockable than batch 2 or if they have just settled with this configuration as final


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 19, 2018, 08:02:03 PM
There is no magic to it, just flash batch 1 firmware
Guess now we know why they delayed the shipment. Had to patch their hole. But the real question did they lock flashing the firmware too?


Title: Re: Antminer Z9 mini overclocked
Post by: Meteorite777 on September 19, 2018, 08:40:26 PM
I'm seeing around 11 ksol/s with no OC currently. I'll have to try another work around later like flashing an older version of the firmware.

There is no magic to it, just flash batch 1 firmware and you dont have to do all that random editing and whatnot, you can just select from a drop down menu.

I am curious to see if the batch 3s are even less overclockable than batch 2 or if they have just settled with this configuration as final

UPDATE: I flashed my batch 3 with the batch 1 firmare and am able to overclock this Batch 3 unit to 750 freq. It's only been running 10 minutes so I can't speak to how stable it is; but my batch 2 units will crash almost instantly or 2/3 boards refuse to start hashing above 673 freq. My batch 2 run at 625 freq for about 13.75 ksol/s stable because I had some boards crash with some units even at 631-650.

I will edit this post if I experience any stability issues.

Batch 3 Z9 Mini
15 ksol/s stable @ 750 freq

PCB Temps: 64*c ish
Chip Temps: 70*c ish


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on September 19, 2018, 09:31:16 PM
I'm seeing around 11 ksol/s with no OC currently. I'll have to try another work around later like flashing an older version of the firmware.

There is no magic to it, just flash batch 1 firmware and you dont have to do all that random editing and whatnot, you can just select from a drop down menu.

I am curious to see if the batch 3s are even less overclockable than batch 2 or if they have just settled with this configuration as final

UPDATE: I flashed my batch 3 with the batch 1 firmare and am able to overclock this Batch 3 unit to 750 freq. It's only been running 10 minutes so I can't speak to how stable it is; but my batch 2 units will crash almost instantly or 2/3 boards refuse to start hashing above 673 freq. My batch 2 run at 625 freq for about 13.75 ksol/s stable because I had some boards crash with some units even at 631-650.

I will edit this post if I experience any stability issues.

Batch 3 Z9 Mini
15 ksol/s stable @ 750 freq

PCB Temps: 64*c ish
Chip Temps: 70*c ish
Nice


Title: Re: Antminer Z9 mini overclocked
Post by: kachna on September 20, 2018, 06:21:50 AM
Hello guys

i just got my two z9 minis a playing with overclociking.
What will happen when i overclock and miner won't start? Is the reset button enough (or what does the reset do?) or do i need to re/upload firmware?


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on September 20, 2018, 07:54:57 AM
I will overclock my Z9 mini today. Do you turn on the second fan ? Or let je de first fan more rpm ?


Title: Re: Antminer Z9 mini overclocked
Post by: DR_BamBam on September 20, 2018, 11:41:30 AM
Quote
i just got my two z9 minis a playing with overclociking.
What will happen when i overclock and miner won't start? Is the reset button enough (or what does the reset do?) or do i need to re/upload firmware?

If your overclock is too high the hash board will crash and give you a 0 reading, just go into the overclock settings and lower the setting and hit apply and the miner will restart with the new settings. Some people will start at 650 and go up step by step until it crashes. Keep in mind that when ever you get close to the sweet spot it might still crash. For instance mine will run at 675 for about 6 hours then one of the boards crashes. At 668 it will run for 12 hours and crash. Best setting for mine is 662 and has been running stable for 6 days with out any problems. I have a batch 2.

hope this helps.


Title: Re: Antminer Z9 mini overclocked
Post by: God is back on September 20, 2018, 11:47:11 AM
Quote
I will overclock my Z9 mini today. Do you turn on the second fan ? Or let je de first fan more rpm ?


SOlved

No need for a 2nd fan, just reverse your current fan so that it pulls air instead of pushing it through the unit and the miner will run about 10c cooler.
  Because we don't have a second fan... ;D ;D ;D ;D
How reverse the current fan inside???? Just did, Let's see how that works. Is possible enable the second fan too?  Because we don't have a second fan... ;D ;D ;D ;D


Solved


Title: Re: Antminer Z9 mini overclocked
Post by: yrk1957 on September 20, 2018, 12:58:31 PM
Quote
i just got my two z9 minis a playing with overclociking.
What will happen when i overclock and miner won't start? Is the reset button enough (or what does the reset do?) or do i need to re/upload firmware?

If your overclock is too high the hash board will crash and give you a 0 reading, just go into the overclock settings and lower the setting and hit apply and the miner will restart with the new settings. Some people will start at 650 and go up step by step until it crashes. Keep in mind that when ever you get close to the sweet spot it might still crash. For instance mine will run at 675 for about 6 hours then one of the boards crashes. At 668 it will run for 12 hours and crash. Best setting for mine is 662 and has been running stable for 6 days with out any problems. I have a batch 2.

Also unscrew your fan and reverse it so that it pulls air instead of pushing the air. Mine went from 60c to 50C. I also run the fan at 55% instead of auto fan. results may vary depending on your ambient temps. Mine is in the basement where its pretty cool all day long so just keep an eye on the temps during the day and adjust your fan speed accordingly. I ran all of my miners at 50-65C.

hope this helps.

Reversing the fan is a bad idea, see here - https://bitcointalk.org/index.php?topic=3509006.msg43559339#msg43559339 (https://bitcointalk.org/index.php?topic=3509006.msg43559339#msg43559339)

Let the original design be.


Title: Re: Antminer Z9 mini overclocked
Post by: pitt59 on September 20, 2018, 02:19:02 PM
how do you flash the firmware from batch1? lets say i have a batch1 how do i get the firmware there and how to transfer to 3rd batch?


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on September 20, 2018, 03:03:24 PM
Quote
I will overclock my Z9 mini today. Do you turn on the second fan ? Or let je de first fan more rpm ?

No need for a 2nd fan, just reverse your current fan so that it pulls air instead of pushing it through the unit and the miner will run about 10c cooler.
I have the batch of 5-10 september I can not overclock it. I discovered that a couple minutes ago  :'( :'(


Title: Re: Antminer Z9 mini overclocked
Post by: melpheos on September 20, 2018, 03:37:10 PM
Quote
I will overclock my Z9 mini today. Do you turn on the second fan ? Or let je de first fan more rpm ?

No need for a 2nd fan, just reverse your current fan so that it pulls air instead of pushing it through the unit and the miner will run about 10c cooler.
I have the batch of 5-10 september I can not overclock it. I discovered that a couple minutes ago  :'( :'(

Read a little bit more and you will see you absolutely can !
Batch 2 can be overclocked as is with F12 on your browser . Looks like batch 3 cannot untill you flash it with a batch1 firmware


Title: Re: Antminer Z9 mini overclocked
Post by: God is back on September 20, 2018, 04:43:03 PM
Anyway I overclocked with the old firmware to 718 frequency.
I get this

ASIC STATUS
Chain 1 0000
Chain 2 X000
Chain 3 0000

I tried everything to restore to have all the chains working.  A Perform Reset, a Restore Backup and recharge the new firmware but nothing that can work.
Seems under 650 all the Chains give me 0000 but is not worth. So like told previously at the moment NOTHING can be done to have all the Chains working with an HIGH FREQUENCY except that lower the frequency.
Otherwise the other miner give me all the Chains working with a 687 frequency.
It's a mistery really


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on September 20, 2018, 04:45:44 PM
Quote
I will overclock my Z9 mini today. Do you turn on the second fan ? Or let je de first fan more rpm ?

No need for a 2nd fan, just reverse your current fan so that it pulls air instead of pushing it through the unit and the miner will run about 10c cooler.
I have the batch of 5-10 september I can not overclock it. I discovered that a couple minutes ago  :'( :'(

Read a little bit more and you will see you absolutely can !
Batch 2 can be overclocked as is with F12 on your browser . Looks like batch 3 cannot untill you flash it with a batch1 firmware

I have a batch 3 then but I dont have a Z9 mini from the first batch.


Title: Re: Antminer Z9 mini overclocked
Post by: God is back on September 20, 2018, 04:55:59 PM
Anyway reverse the fan will fall the warranty. So make it at your risk.


Title: Re: Antminer Z9 mini overclocked
Post by: d.v. on September 20, 2018, 05:33:11 PM
Reversing the fan is a bad idea, see here - https://bitcointalk.org/index.php?topic=3509006.msg43559339#msg43559339 (https://bitcointalk.org/index.php?topic=3509006.msg43559339#msg43559339)

Let the original design be.

do not reverse the fan. the temp sensor is on the far end of the board where the air exhaust out of and if you reverse the fan, cold air will hit the temp sensor first giving false cooler readings so the fan will slow down and be more quiet but your chips will be running hotter than reported in the GUI.

i know we all hate bitmain but they didn't make an asic to fail and die to get warrantied back.


Title: Re: Antminer Z9 mini overclocked
Post by: God is back on September 20, 2018, 07:52:42 PM
Reversing the fan is a bad idea, see here - https://bitcointalk.org/index.php?topic=3509006.msg43559339#msg43559339 (https://bitcointalk.org/index.php?topic=3509006.msg43559339#msg43559339)

Let the original design be.

do not reverse the fan. the temp sensor is on the far end of the board where the air exhaust out of and if you reverse the fan, cold air will hit the temp sensor first giving false cooler readings so the fan will slow down and be more quiet but your chips will be running hotter than reported in the GUI.

i know we all hate bitmain but they didn't make an asic to fail and die to get warrantied back.

Following your suggestion, hashrate is not increasing, just the temperature is going down. So well thinking it's not worth reverse the fan. Going back to the original configuration.

 :D :D :D

https://www.youtube.com/watch?v=50VDbkgVzQM

 :o :o :o


Title: Re: Antminer Z9 mini overclocked
Post by: ZEDIX360 on September 21, 2018, 12:10:45 PM
One of my board is not present or dies after overclocking at 750......they use to go ok for 1 week at 700   and when i try to jump at 750 1 board crash...So i put back the original firmware to try to repair it and nothing change...i wonder if it s the hashboard or the controler board....Any soluce?

Thanks a lot


Title: Re: Antminer Z9 mini overclocked
Post by: masrobots on September 21, 2018, 01:24:44 PM
One of my board is not present or dies after overclocking at 750......they use to go ok for 1 week at 700   and when i try to jump at 750 1 board crash...So i put back the original firmware to try to repair it and nothing change...i wonder if it s the hashboard or the controler board....Any soluce?

Thanks a lot

It's a trial and error process. Your ultimate results will depend on which batch you purchased, how cool you're keeping the miner/room, and some luck. To troubleshoot, I always first reboot the miner and keep an eye on it. If it can't hold the freq that it used to be able to handle, then I try to figure out what changed. In all of my similar situations, the change was always the temperature in the room (one time I moved a miner to a hotter location, another time the A/C went out). Once I got the miner back to the same room temperature conditions it was in before, it worked like before. These boxes are a little finicky at the higher freq.


Title: Re: Antminer Z9 mini overclocked
Post by: hashestohashes on September 21, 2018, 03:34:29 PM
My batch 2 mini started off OK t 675 or so, but after days it went down, and now it's clear down to 662 or so, testing that now.


Title: Re: Antminer Z9 mini overclocked
Post by: Tailgunner on September 21, 2018, 03:49:23 PM
how cool you're keeping the miner/room, and some luck. To troubleshoot, I always first reboot the miner and keep an eye on it. If it can't hold the freq that it used to be able to handle, then I try to figure out what changed. In all of my similar situations, the change was always the temperature in the room (one time I moved a miner to a hotter location, another time the A/C went out). Once I got the miner back to the same room temperature conditions it was in before, it worked like before. These boxes are a little finicky at the higher freq.

Yep, doesn't make sense to me because they never go above 70c. yet when they do die it's only during the hottest part of the day despite regardless of fan setting.


Title: Re: Antminer Z9 mini overclocked
Post by: fanatic26_ on September 21, 2018, 04:55:27 PM
so why does everyone think they are entitled to this massive overclock on these?

People seem genuinely confused and offended that their machine can only overclock 50% over the advertised rate.

No one promised you anything but 10k sols, if you get even a fraction more than that you should be happy.

Instead people want to try and RMA machines that dont overclock enough for their liking?


Title: Re: Antminer Z9 mini overclocked
Post by: johndoe1337 on September 21, 2018, 10:23:00 PM
where can i download a legit batch 1 firmware?


Title: Re: Antminer Z9 mini overclocked
Post by: Sacsayhuaman on September 22, 2018, 06:59:41 AM
We managed to OC some of our Batch 2 devices up to 706 with stable hashrates for 19hrs. We are very excited about the results.

https://abload.de/img/2018-09-22_083403c5e0c.jpg


Title: Re: Antminer Z9 mini overclocked
Post by: God is back on September 22, 2018, 12:50:42 PM
I am very upset by having invested in miners. I will never buy miners again. It's not worth. I have better solutions to invest my money. Losing time, money and effort for a too low and long return in time. So the true is save your money and invest in better stuffs.
I overclocked miners ,  I tried everything to maximize the return but again is not enough.
Save your money, save your time, don't buy it.


Title: Re: Antminer Z9 mini overclocked
Post by: God is back on September 22, 2018, 01:03:56 PM
Stop buy chinese stuffs, absolutely not worth. Buy National stuffs, they steal your money in favour of communism capitalist.


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 22, 2018, 08:20:01 PM
where can i download a legit batch 1 firmware?

May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/fwcqd
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and the link should work for 30 days from september 10, 2018!)


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 22, 2018, 09:04:20 PM
I am very upset by having invested in miners. I will never buy miners again. It's not worth. I have better solutions to invest my money. Losing time, money and effort for a too low and long return in time. So the true is save your money and invest in better stuffs.
I overclocked miners ,  I tried everything to maximize the return but again is not enough.
Save your money, save your time, don't buy it.

We are all very upset!!!


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 22, 2018, 09:08:20 PM
Stop buy chinese stuffs, absolutely not worth. Buy National stuffs, they steal your money in favour of communism capitalist.

I'm quite sure thoose who sold us the ASICs are true capitalists and the money will go to their Globalist Totalitarianism of which Communism is just a light version. It's Agenda 2030 and beyond their goal is at.

Just hope WWG1WGA WW will succed!!!

(Q = red pilling and waking people up and draining the swamps)


Title: Re: Antminer Z9 mini overclocked
Post by: God is back on September 22, 2018, 10:13:45 PM
Stop buy chinese stuffs, absolutely not worth. Buy National stuffs, they steal your money in favour of communism capitalist.

I'm quite sure thoose who sold us the ASICs are true capitalists and the money will go to their Globalist Totalitarianism of which Communism is just a light version. It's Agenda 2030 and beyond there goal is at.

Just hope WWG1WGA WW will succed!!!

(Q = red pilling and waking people up and draining the swamps)
You are right bro. Time is coming!
I've been stupid to buy chinese again. But I vow that I will not be anymore prey of the communist Chinese.
They are and will be always my first enemy. I hate the communism capitalist of these people not able to create added value. Thinks about the salary of people that is building asics in factories. They are trying to build a new Roman Era with their modern slaves. But pay attention Chinese, in the Roman Empire we have built streets, aqueducts and a big army ready to fight anyone. Not to build obsolete miners. Also the Moore's Law, do you remember the famous 18 months in ICT? Well, with these new miners this law has been destroyed.
Pay attention chinese, or the Old Empire will destroy you.


Title: Re: Antminer Z9 mini overclocked
Post by: FrozenChip on September 23, 2018, 05:12:46 AM
It seems that communications on Z9 is done through PIC16F1704, same as for L3+
https://bitcointalk.org/index.php?topic=4534369.0

Did anyone try to change voltages similar to this ?
Code:
./set_voltage 1 90

all details here
https://bitcointalk.org/index.php?topic=3546316.0


Title: Re: Antminer Z9 mini overclocked
Post by: kachna on September 23, 2018, 07:38:38 AM
Anyway reverse the fan will fall the warranty. So make it at your risk.
There is no sticker over the fan. No one will recognize, you had it reversed. But i just do not see the point of doing so .)


Title: Re: Antminer Z9 mini overclocked
Post by: kachna on September 23, 2018, 07:56:26 AM
FYI: with those 2x Z9 from batch2, i§m not able to go over 600MHz, when i overclock more, they runs just about 1.5 KSol.,.. Asic status is oooo for al boards
Doesnt matter if i set 610, 630, 650 or more, looks the same

Something as:
Chain#   ASIC#   Frequency   KSol/S(RT)   HW   Temp(PCB)   Temp(Chip)   ASIC status
1   4   666   1.62   0   33   41   oooo
2   4   666   1.27   0   33   41   oooo
3   4   666   1.39   0   35   44   oooo

Compared to 600 MHz:
Chain#   ASIC#   Frequency   KSol/S(RT)   HW   Temp(PCB)   Temp(Chip)   ASIC status
1   4   600   4.30   0   50   64   oooo
2   4   600   4.09   0   46   60   oooo
3   4   600   4.62   0   49   61   oooo




Title: Re: Antminer Z9 mini overclocked
Post by: God is back on September 23, 2018, 12:49:57 PM
Seen the last returns ready to turn off this great investment  ??? ??? ???
Damn China!!


Title: Re: Antminer Z9 mini overclocked
Post by: dolby786 on September 23, 2018, 01:00:31 PM
what is diffrence b/w altcoin and bitcoin


Title: Re: Antminer Z9 mini overclocked
Post by: 0ethereum0 on September 23, 2018, 04:23:07 PM
what is diffrence b/w altcoin and bitcoin

 you can try google but here you go
BTC is BTC altcoins are al all the other coins


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 23, 2018, 07:04:17 PM
Could you pls help me to figure out how to solve the problem on board no.2 ?
I have x on board 2, however, if i decreased the frequency the x will be removed.
https://i.postimg.cc/HWSGkKS8/20180918_224555.jpg
https://postimg.cc/xqbpssV9

"Decrease frequency" is the only solution as of now.


Does board no 2 get enough power ? ? ?

Switch powerconnector with board 1 or 3 and see if problem moves to other board or goes away ? ? ?

If not, then decrease frequecy is only solution as of now!!!


Title: Re: Antminer Z9 mini overclocked
Post by: omars2010 on September 24, 2018, 01:10:31 AM
Could you pls help me to figure out how to solve the problem on board no.2 ?
I have x on board 2, however, if i decreased the frequency the x will be removed.
https://i.postimg.cc/HWSGkKS8/20180918_224555.jpg
https://postimg.cc/xqbpssV9

"Decrease frequency" is the only solution as of now.


Does board no 2 get enough power ? ? ?

Switch powerconnector with board 1 or 3 and see if problem moves to other board or goes away ? ? ?

If not, then decrease frequecy is only solution as of now!!!

I have tried to switch the power connector, but the problem still there.
Only decreasing the frequency, which cause losing hashrate, was the only solution i found.


Title: Re: Antminer Z9 mini overclocked
Post by: Kalyst69 on September 25, 2018, 01:15:05 AM

You are right bro. Time is coming!
I've been stupid to buy chinese again. But I vow that I will not be anymore prey of the communist Chinese.
They are and will be always my first enemy. I hate the communism capitalist of these people not able to create added value. Thinks about the salary of people that is building asics in factories. They are trying to build a new Roman Era with their modern slaves. But pay attention Chinese, in the Roman Empire we have built streets, aqueducts and a big army ready to fight anyone. Not to build obsolete miners. Also the Moore's Law, do you remember the famous 18 months in ICT? Well, with these new miners this law has been destroyed.
Pay attention chinese, or the Old Empire will destroy you.

Tell me what you smoke, I want to buy the same


Title: Re: Antminer Z9 mini overclocked
Post by: Rakly3 on September 26, 2018, 09:47:27 AM
Unlocked my Batch 3 about 10 days ago.
Running steady at 700Mhz
Depending on the pool difficulty it ranges between 14.5k (high diff) and 17k (low diff)
Ran at 750Mhz for a full day, but the speed was noticeably lower (12-13ksol/s)

http://i65.tinypic.com/23ubgo1.jpg


Title: Re: Antminer Z9 mini overclocked
Post by: sqnkee on September 26, 2018, 10:11:40 AM
Unlocked my Batch 3 about 10 days ago.
Running steady at 700Mhz
Depending on the pool difficulty it ranges between 14.5k (high diff) and 17k (low diff)
Ran at 750Mhz for a full day, but the speed was noticeably lower (12-13ksol/s)

http://i65.tinypic.com/23ubgo1.jpg

How did you OC Batch 3???


Title: Re: Antminer Z9 mini overclocked
Post by: Rakly3 on September 26, 2018, 10:18:50 AM
Unlocked my Batch 3 about 10 days ago.
Running steady at 700Mhz
Depending on the pool difficulty it ranges between 14.5k (high diff) and 17k (low diff)
Ran at 750Mhz for a full day, but the speed was noticeably lower (12-13ksol/s)

http://i65.tinypic.com/23ubgo1.jpg

How did you OC Batch 3???
https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


Title: Re: Antminer Z9 mini overclocked
Post by: ZergeZ on September 27, 2018, 10:35:06 PM
Is anybody know what type of chip is near 16f1704 on hashboard z9m? It is mark as FENZ. 8pin soic. I know that it is something like EEPROM
 or NVRAM memory, but cann’t find it type.


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 28, 2018, 08:13:50 AM
FYI: with those 2x Z9 from batch2, i§m not able to go over 600MHz, when i overclock more, they runs just about 1.5 KSol.,.. Asic status is oooo for al boards
Doesnt matter if i set 610, 630, 650 or more, looks the same

Something as:
Chain#   ASIC#   Frequency   KSol/S(RT)   HW   Temp(PCB)   Temp(Chip)   ASIC status
1   4   666   1.62   0   33   41   oooo
2   4   666   1.27   0   33   41   oooo
3   4   666   1.39   0   35   44   oooo

Compared to 600 MHz:
Chain#   ASIC#   Frequency   KSol/S(RT)   HW   Temp(PCB)   Temp(Chip)   ASIC status
1   4   600   4.30   0   50   64   oooo
2   4   600   4.09   0   46   60   oooo
3   4   600   4.62   0   49   61   oooo




try 668 MHz instead of 666.

in may 26 firmware the stepping is as follow for ,... ,500, 600, 700 up to 750 MHz:
06
12
18
25
31
37
43
50
56
62
68
75
81
87
93
00

I guess Bitmain might have some reason for chosing that particular stepping.

good luck and please give feedback to us all !


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 28, 2018, 09:45:11 AM

Is it dangerous to connect multiple ASICs from one PSU?  ::) ::) ::)


it's the other way around. it is dangerous to connect multiple PSUs to a single ASIC.  you can connect as many asics you want to a PSU as long as both your PSU and the 6pin connected can handle the power needed. from a theoretical point of view you can have 4 z9 minis connected to 1 APW 1600w psu ( each z9 mini takes about 350w if not overclocked" ). how ever i would not do that until i verify that the 6 pin connectors which are going to be split can actually handle the load.


https://bitcointalk.org/index.php?topic=1739630.0


You don't want to run your engine on max RPM to loong.

It's the same with PSU's.


this is completely based on your own or someone else's speculations and it has no solid proof what so ever, the max you see on the label is the safe point which a good psu should handle all day long. I have been pulling about 970w of  a 1000w psus on my rigs for years and zero problems, it all comes down to the room ventilation and the quality of your PSU. bitmain psu is a solid psu. i have some A3 and S9s slightly over clocked consuming close to 1500 for ages and never a problem with the PSU. you can test it out yourself if you like.  

Yep, agreed. I haven't had any problems with my Z9 running at max settings. Bitmain left lots of room for tuning in these things.


in the link I gave this one is on page 2:
https://bitcointalk.org/index.php?topic=1739630.msg17440217#msg17440217

And this one:
https://bitcointalk.org/index.php?topic=1739630.msg17440489#msg17440489

You guys are correct!!!
The Label doesn't give the full answer !!!

For all the people who read your answer's they might not know as much as you guys.

Do they have 120V or 240V?
50Hz or 60Hz ?
Does it matter ?

Do you RECOMMEND that everyone push their PSU's to the limit according to the label on their PSU's whatever brand, age (manufacturing year), earlier usages if not new from the store, voltage, ... ???

If not, WHY ?

Everything will always go well until it goes wrong !!!


you don't have to push your PSU to the limit if you don't have to :D. also you do not want a lot of spare power sitting there doing nothing when you have to buy another psu ! . if there is a room on your psu which you can use then just use it.

I don't have a 120v circuit i think only people in the U.S and a few other countries have that old power infrastructure. i don't know how much exactly in WATS you would be able to pull from APW psu but i am sure it is not 1600w. i think 1200w is the BEST you could wish for but then dyor regarding that matter.

assuming you can get a 1200w of it, then it's safe to say that you can consume 1200w from it , all year long :D.


 

** so this is what bitmain has on thier page

APW3++

The APW3++ can deliver a maximum power of only 1200W if it is connected to a 110V mains power supply. To obtain the rated power of 1600W, the APW3++ must be connected to a 220-240V

APW7

The APW7 can deliver a maximum power of only 1000W if it is connected to a 110V mains power supply. To obtain the rated power of 1800W, the APW7 must be connected to a 220-240V


so if you are using 110 vs then you should get the APW3++ which give you 1200w . if you are using 220v then you should get APW7 as it gives you 1800w instead of 1600w.

Follow up - my own Real Life example:
I've been running my single z9 mini for about 2,5 months on this PSU.

My PSU was bought new and SHOULD deliver "Max power" 648W and "Max load" 54A on +12V according to label.
I've been running solid 768MHz overclocked using may 26 firmware and by SSH'ing up'ed to 768MHz.

Antminer Z9 mini label says max 35A
(I guess max 35A equal each ASIC-board is about max 10A @12V and controllerboard about max 5A @12V including fan)

The actual total power drawn meassured from wall socket was about 418W @ about 234V @ 50Hz

418W / 12V = 34,83A

(UPDATE:
I forgot to compensate for the PSU's own heat disipation which I approximate to be about 80-90% efficency when powerusage drawn from wall socket is 418W.
So..       (85%)
34,83A * 0.85 = 29,66A * 12V = 356W is somewhere close to what the z9 mini consumes in power (NOT exactly) )

Problem:
Apperently the PSU was NOT able to continously(year after year) deliver "only" about 35A on +12V which isn't  anything close to 54A according to label. If cable/connector melts after about 2,5 months it's not built to deliver continously power according to label ! ! !

My Z9 mini been running inside my home with ambient temp around 24-27 degree Celsius and humidity between 35-60% according to sensor built into firealarm coupled to housealarm system during this hole period.

PSU label:
https://imagebin.ca/v/4HFBVBvgQYCR
http://

On the left the cable/connector in PSU for board 2 and 3 which has melted on 3 pins. On the right the connection still in it's port for board 1 + controlboard and still working.
https://imagebin.ca/v/4HFBzmxy2xyt
http://

Something to consider !


Title: Re: Antminer Z9 mini overclocked
Post by: party143 on September 30, 2018, 11:01:45 AM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 30, 2018, 11:41:19 AM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

Firmware for batch 1 should be may 26 2018 ! ! !
NOT april !!!


https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


Try restore to factory defaults !!!
Go to System - Upgrade
Under "Backup / Restore"
Choose "Reset to defaults"

Try upgrade with firmware in link above !!!


Title: Re: Antminer Z9 mini overclocked
Post by: party143 on September 30, 2018, 02:55:02 PM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

Firmware for batch 1 should be may 26 2018 ! ! !
NOT april !!!


https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


Try restore to factory defaults !!!
Go to System - Upgrade
Under "Backup / Restore"
Choose "Reset to defaults"

Try upgrade with firmware in link above !!!

i tried to say that changin value of fan speed doesnt affect. Its always 100%, not depended on firmware.


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on September 30, 2018, 03:03:00 PM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

Firmware for batch 1 should be may 26 2018 ! ! !
NOT april !!!


https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


Try restore to factory defaults !!!
Go to System - Upgrade
Under "Backup / Restore"
Choose "Reset to defaults"

Try upgrade with firmware in link above !!!

i tried to say that changin value of fan speed doesnt affect. Its always 100%, not depended on firmware.


It might be one of the four cables to the fan that don't have contact with the controllerboards contact.
It's missing the speed impulse or something !!!

Good luck!

Please share your findings, results and solution with us to help others!


Title: Re: Antminer Z9 mini overclocked
Post by: fliperone on October 01, 2018, 03:24:08 PM
It seems that communications on Z9 is done through PIC16F1704, same as for L3+
https://bitcointalk.org/index.php?topic=4534369.0

Did anyone try to change voltages similar to this ?
Code:
./set_voltage 1 90

all details here
https://bitcointalk.org/index.php?topic=3546316.0


Hey FrozenChip. I tried to use the tool that jstefanop developed for the L3+ but it wont work. It gives the error: "Failed to open the bus"

I guess its not the same chip/FW version? I can try to ask jstefanop in his thread but I cant send him a message since Im a noob :(

Any help appreciated!


Title: Re: Antminer Z9 mini overclocked
Post by: DR_BamBam on October 01, 2018, 10:16:01 PM
Which firmware works best with the batch 2?


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 02, 2018, 01:13:37 AM
Which firmware works best with the batch 2?

https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658

they are probably quite equal when it comes to stability

if you want to overclock ?

you need firmware thats before aug 30 2018.


Title: Re: Antminer Z9 mini overclocked
Post by: ZergeZ on October 07, 2018, 10:38:23 PM
It seems that communications on Z9 is done through PIC16F1704, same as for L3+
https://bitcointalk.org/index.php?topic=4534369.0
Did anyone try to change voltages similar to this ?
Code:
./set_voltage 1 90
https://bitcointalk.org/index.php?topic=3546316.0
Don't work!


Title: Re: Antminer Z9 mini overclocked
Post by: DepositBox on October 10, 2018, 11:52:01 AM
you can use Awesome miner to Overclock the batches that do not have it built in.


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on October 10, 2018, 12:05:34 PM
you can use Awesome miner to Overclock the batches that do not have it built in.

Only if the firmware supports it -- all awesomeminer does in this scenario is configure /config/cgminer.conf. This works best, as far as I am aware, with batch1 firmware installed.

-j


Title: Re: Antminer Z9 mini overclocked
Post by: DepositBox on October 10, 2018, 12:59:53 PM
I am certain I do not have the batch 1 and I am at 650, I was unable to use the firmware to change frequency so I used awesome miner.


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on October 10, 2018, 01:24:30 PM
I am certain I do not have the batch 1 and I am at 650, I was unable to use the firmware to change frequency so I used awesome miner.

Translation, and please feel free to correct me: You were unable to change frequency via the web interface, so you used awesome miner to change the frequency for you. Behind the scenes, awesomeminer modifies /config/cgminer.conf to set the frequency and restarts cgminer to make that frequency take effect.

I didn't say "only on batch1 hardware", I said "batch1 firmware".

anyway.

-j


Title: Re: Antminer Z9 mini overclocked
Post by: DepositBox on October 10, 2018, 01:30:57 PM
I am certain I do not have the batch 1 and I am at 650, I was unable to use the firmware to change frequency so I used awesome miner.

Translation, and please feel free to correct me: You were unable to change frequency via the web interface, so you used awesome miner to change the frequency for you. Behind the scenes, awesomeminer modifies /config/cgminer.conf to set the frequency and restarts cgminer to make that frequency take effect.

I didn't say "only on batch1 hardware", I said "batch1 firmware".

anyway.

-j


You are correct, except I did not change firmware, it's the stock firmware, I can send screenshot of miner when I get home tonight.


Title: Re: Antminer Z9 mini overclocked
Post by: badbart on October 10, 2018, 05:48:50 PM
Is their custom firmware that helps with over clocks?


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 10, 2018, 06:13:34 PM
I am certain I do not have the batch 1 and I am at 650, I was unable to use the firmware to change frequency so I used awesome miner.

Translation, and please feel free to correct me: You were unable to change frequency via the web interface, so you used awesome miner to change the frequency for you. Behind the scenes, awesomeminer modifies /config/cgminer.conf to set the frequency and restarts cgminer to make that frequency take effect.

I didn't say "only on batch1 hardware", I said "batch1 firmware".

anyway.

-j


You are correct, except I did not change firmware, it's the stock firmware, I can send screenshot of miner when I get home tonight.

I guess it's a stock firmware BEFORE aug 30 2018 !
But from witch date would be of interest ?

Info about firmware versions and link to may 26 2018 firmware from batch 1:
https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 10, 2018, 06:14:22 PM
Is their custom firmware that helps with over clocks?

Info about firmware versions and link to may 26 2018 firmware from batch 1:
https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 13, 2018, 11:19:53 PM
Hi guys I did anything that You told, but it is not overclocked.
1:https://pasteboard.co/HIk6hcW.jpg
I changed value from 500 to 668 in
/www/pages/cgi-bin/minerAdvanced.cgi
2:https://pasteboard.co/HIk6ZaM.jpg
But is not changed in status
3:https://pasteboard.co/HIk8RnP.jpg
How should I do?

Info about firmware versions and link to may 26 2018 firmware from batch 1:
https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


"May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/cwnf6 (New link - Uploaded 10 october 2018)
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and THIS LINK should work for 30 days from october 10, 2018!)"

If you check this link that is in the posting before yours you can read that aug 30 and aug 31 firmware versions does NOT work to change the way you tried.

If you download may 26 firmware in link above and install you can use the web-interface like God intended and choose your desired frequence as everyone with a batch 1.

Try with 668 MHz if batch 2.

If problem go down to 637 MHz to try to find stable overclock.

Good luck!


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on October 14, 2018, 12:55:01 AM
Hi guys I did anything that You told, but it is not overclocked.
1:https://pasteboard.co/HIk6hcW.jpg
I changed value from 500 to 668 in
/www/pages/cgi-bin/minerAdvanced.cgi
2:https://pasteboard.co/HIk6ZaM.jpg
But is not changed in status
3:https://pasteboard.co/HIk8RnP.jpg
How should I do?

Info about firmware versions and link to may 26 2018 firmware from batch 1:
https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


"May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/cwnf6 (New link - Uploaded 10 october 2018)
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and should work for 30 days from october 10, 2018!)"

If you check this link that is in the posting before yours you can read that aug 30 and aug 31 firmware versions does NOT work to change the way you tried.

If you download may 26 firmware in link above and install you can use the web-interface like God intended and choose your desired frequence as everyone with a batch 1.

Try with 668 MHz if batch 2.

If problem go down to 637 MHz to try to find stable overclock.

Good luck!

Z9 mini, stock firmware, will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz

You can find it by going to http://releases.broked.net if you do not remember the name.

Thank you.

Jason


Title: Re: Antminer Z9 mini overclocked
Post by: Neodragon on October 14, 2018, 06:11:03 AM
t would be interesting and helpful to the community if one of these days you report to us if and when your Z9 ASIC dies. I would certainly find that useful information and reward you with some merit or some other way if possible.


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 14, 2018, 08:03:51 AM
Hi guys I did anything that You told, but it is not overclocked.
1:https://pasteboard.co/HIk6hcW.jpg
I changed value from 500 to 668 in
/www/pages/cgi-bin/minerAdvanced.cgi
2:https://pasteboard.co/HIk6ZaM.jpg
But is not changed in status
3:https://pasteboard.co/HIk8RnP.jpg
How should I do?

Info about firmware versions and link to may 26 2018 firmware from batch 1:
https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


"May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/cwnf6 (New link - Uploaded 10 october 2018)
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and should work for 30 days from october 10, 2018!)"

If you check this link that is in the posting before yours you can read that aug 30 and aug 31 firmware versions does NOT work to change the way you tried.

If you download may 26 firmware in link above and install you can use the web-interface like God intended and choose your desired frequence as everyone with a batch 1.

Try with 668 MHz if batch 2.

If problem go down to 637 MHz to try to find stable overclock.

Good luck!

Z9 mini, stock firmware, will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz

You can find it by going to http://releases.broked.net if you do not remember the name.

Thank you.

Jason

"work for 30 days from october 10, 2018" means every 30 days I have to install firmware again ? and I don't have have to upgrade it anymore ?



The LINK at uploadfiles.io will work for 30 days.

Thanks to efudd we now have a permanent LINK to download the original stock firmware from may 26 2018 to ALL  batch 1, 2 and 3 Z9 mini which ALL share the SAME Hardware revision !

Permanent LINK:
Z9 mini, Batch 1 stock firmware (the first original firmware downloaded from Bitmains support-site), will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz

You can find it by going to http://releases.broked.net if you do not remember the name.

And we all say a BIG Thank you to "efudd" in this forum for this and for his tremendous hard work with the big Z9 firmware and he deserves some earnings for putting that hard work out here fore everyone with a bigdaddy Z9 to profit from.

Thank YOU, Jason ! ! !


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 14, 2018, 08:13:53 AM
A BIG thanks to efudd (Jason) for putting up a permanent LINK to :


Z9 mini, Batch 1 stock firmware (the first original firmware downloaded from Bitmains support-site), will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz

You can find it by going to http://releases.broked.net if you do not remember the name.

And we all say a BIG Thank you to Jason for this and for his tremendous hard work with the big Z9 firmware and he deserves some earnings for putting that hard work out here fore everyone with a bigdaddy Z9 to profit from.

Thank YOU, Jason ! ! !


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 14, 2018, 08:19:53 AM
Hi guys I did anything that You told, but it is not overclocked.
1:https://pasteboard.co/HIk6hcW.jpg
I changed value from 500 to 668 in
/www/pages/cgi-bin/minerAdvanced.cgi
2:https://pasteboard.co/HIk6ZaM.jpg
But is not changed in status
3:https://pasteboard.co/HIk8RnP.jpg
How should I do?

Info about firmware versions and link to may 26 2018 firmware from batch 1:
https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658


"May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/cwnf6 (New link - Uploaded 10 october 2018)
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and should work for 30 days from october 10, 2018!)"

If you check this link that is in the posting before yours you can read that aug 30 and aug 31 firmware versions does NOT work to change the way you tried.

If you download may 26 firmware in link above and install you can use the web-interface like God intended and choose your desired frequence as everyone with a batch 1.

Try with 668 MHz if batch 2.

If problem go down to 637 MHz to try to find stable overclock.

Good luck!

Z9 mini, stock firmware, will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz

You can find it by going to http://releases.broked.net if you do not remember the name.

Thank you.

Jason

"work for 30 days from october 10, 2018" means every 30 days I have to install firmware again ? and I don't have have to upgrade it anymore ?




let me know installing firmware is risky , I mean when I encounter an error during the installing what will be happened for it , because the old firmware is erased and new won't install , is there any other  interface without web that in emergency case we can deploy firmware file or bin file in it such as serial (jtag)
?

The LINK at uploadfiles.io will work for 30 days.

Thanks to efudd we now have a permanent LINK to download the original stock firmware from may 26 2018 to ALL  batch 1, 2 and 3 Z9 mini which ALL share the SAME Hardware revision !

Permanent LINK:
Z9 mini, Batch 1 stock firmware (the first original firmware downloaded from Bitmains support-site), will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz

You can find it by going to http://releases.broked.net if you do not remember the name.

And we all say a BIG Thank you to "efudd" in this forum for this and for his tremendous hard work with the big Z9 firmware and he deserves some earnings for putting that hard work out here fore everyone with a bigdaddy Z9 to profit from.

Thank YOU, Jason ! ! !


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 14, 2018, 04:52:24 PM
I did it and it worked, but I tested in 668 was good but in 700 the rejection was a lot and 725 in comparison 668 was not remarkable 668 is 14TH - 15.5 TH and 725 is 15 -15.8

In my world stability is my goal !

Getting max hashrate reported by the asic miner is not important.
Many other things will be of importance for end result.
Latency to mining pool
which coin(s) to mine
which mining pool

https://investoon.com/mining_pools/zec


Important is 24/7 stability with optimal hashrate !

End result matters!!! ;)


Title: Re: Antminer Z9 mini overclocked
Post by: Zapp777 on October 14, 2018, 06:50:39 PM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 14, 2018, 07:22:54 PM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!

Have you installed firmware for z9 mini ?

Have you installed this firmware version ?

Permanent LINK:
Z9 mini, Batch 1 stock firmware (the first original firmware downloaded from Bitmains support-site), will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz


May 26 version and Aug 31 version are the only versions as far as I am aware that have been able to download for z9 mini from Bitmain's support site !

Have you carefully jiggled fan cables in connector on controllerboard or tested move fan connector to fan connector nr 2 ?



Title: Re: Antminer Z9 mini overclocked
Post by: Zapp777 on October 14, 2018, 07:45:20 PM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!

Have you installed firmware for z9 mini ?

Have you installed this firmware version ?

Permanent LINK:
Z9 mini, Batch 1 stock firmware (the first original firmware downloaded from Bitmains support-site), will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz


May 26 version and Aug 31 version are the only versions as far as I am aware that have been able to download for z9 mini from Bitmain's support site !

Have you carefully jiggled fan cables in connector on controllerboard or tested move fan connector to fan connector nr 2 ?



Hi,

it works just fine with the original firmware, so the fan cables are not the problem (nevertheless i checked it and also switched to the second connector).

I tried batch 1 firmware (the one you mentioned), result ----> works, stable overclockable until 681
BUT:
Chip temperature always reads: 0
Fan always spins at 100%
Changing it to 50% works for 10sec then back to 100%

Also tried batch 2 firmware, same results.

I also tried to unplug the fan while the miner was running and connect it to the 2. fan connector of a other Z9 mini but it stops working the moment i unplug the fan.


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 14, 2018, 08:04:33 PM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!

Have you installed firmware for z9 mini ?

Have you installed this firmware version ?

Permanent LINK:
Z9 mini, Batch 1 stock firmware (the first original firmware downloaded from Bitmains support-site), will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz


May 26 version and Aug 31 version are the only versions as far as I am aware that have been able to download for z9 mini from Bitmain's support site !

Have you carefully jiggled fan cables in connector on controllerboard or tested move fan connector to fan connector nr 2 ?



Hi,

it works just fine with the original firmware, so the fan cables are not the problem (nevertheless i checked it and also switched to the second connector).

I tried batch 1 firmware (the one you mentioned), result ----> works, stable overclockable until 681
BUT:
Chip temperature always reads: 0
Fan always spins at 100%
Changing it to 50% works for 10sec then back to 100%

Also tried batch 2 firmware, same results.

I also tried to unplug the fan while the miner was running and connect it to the 2. fan connector of a other Z9 mini but it stops working the moment i unplug the fan.


Which version is "original firmware" ?

When you install other firmware have you UNchecked "keep settings"  ? ? ?


Title: Re: Antminer Z9 mini overclocked
Post by: Zapp777 on October 14, 2018, 08:22:11 PM
The only one on bitmain homepage:
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

I tried both, keep settings and also unchecked it.
Did it several times and tried every combination.

the only tiny success:
installing batch 2 firmware --> change to turbo --> keep settings ---> install original firmware
Result: 550 frequency + working temperature sensor + working fan

sadly this trick does not work with batch 1 firmware and (e.g.) 650 frequency.
Keeping setting and reverting to batch 3 firmware resets the frequency to 500.


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on October 15, 2018, 12:01:14 AM
The only one on bitmain homepage:
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

I tried both, keep settings and also unchecked it.
Did it several times and tried every combination.

the only tiny success:
installing batch 2 firmware --> change to turbo --> keep settings ---> install original firmware
Result: 550 frequency + working temperature sensor + working fan

sadly this trick does not work with batch 1 firmware and (e.g.) 650 frequency.
Keeping setting and reverting to batch 3 firmware resets the frequency to 500.

I expect batch3 firmware may be restricted to specific frequencies like the Z9 was (guessing, not verified).. If so, then it makes sense that it would reset back to 500Mhz.

Jason


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 15, 2018, 03:41:13 AM
The only one on bitmain homepage:
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

I tried both, keep settings and also unchecked it.
Did it several times and tried every combination.

the only tiny success:
installing batch 2 firmware --> change to turbo --> keep settings ---> install original firmware
Result: 550 frequency + working temperature sensor + working fan

sadly this trick does not work with batch 1 firmware and (e.g.) 650 frequency.
Keeping setting and reverting to batch 3 firmware resets the frequency to 500.

On first page under System - Overview:
Do you also have "Hardware version: 9.0.0.5" ?

Seems like you are stuck on 550 for now ?

https://bitcointalk.org/index.php?topic=5041859.msg46512562#msg46512562

Would not recommend doing other way around !


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 15, 2018, 03:53:55 AM
The only one on bitmain homepage:
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

I tried both, keep settings and also unchecked it.
Did it several times and tried every combination.

the only tiny success:
installing batch 2 firmware --> change to turbo --> keep settings ---> install original firmware
Result: 550 frequency + working temperature sensor + working fan

sadly this trick does not work with batch 1 firmware and (e.g.) 650 frequency.
Keeping setting and reverting to batch 3 firmware resets the frequency to 500.

I expect batch3 firmware may be restricted to specific frequencies like the Z9 was (guessing, not verified).. If so, then it makes sense that it would reset back to 500Mhz.

Jason

But if you install batch 2 firmware where you can change to 550, can you not use the trick with inspection in web browser and up the frequence to 650 and NOT change to another firmware ?

Newest firmware does not mean best firmware always!

OR could it work to install May 26 -> set 650 -> keep setting -> install batch 2 firmware    ? ? ?


Title: Re: Antminer Z9 mini overclocked
Post by: Waldooooo on October 16, 2018, 05:30:34 AM
I have one Z9 mini September 2018 batch with firmware dated Sun Aug 12 17:43:41 CST 2018. Although the only GUI option is "Balanced", I can configure OC with web editor to any speed with the best speed being at 675 MHz and 95% fan speed for best cooling and is producing a stable 15-16kH/s hashing speed. I received three October 2018 batch minis today and the maximum OC speed in the GUI is the "balanced" setting of 500 MHz but can only be raised to 550 MHz using html editor. The miner will reject and revert to 500 MHz if any other number is attempted. Of course, the "Aug 12 17:43:41 CST 2018" firmware is no longer available on the Bitmain website which was replaced with the Aug 31, 2018 firmware which is what is on my new batch. I tried to save a config backup from the older device and restore to the new one but had no affect whatsoever. Did anyone happen to obtain the Aug 12, 2018 firmware before it was replaced and might it run as desired on the newer Z9 mini? The new Z9 minis are hashing at a consistent 12-13 kH/s at 550 MHz which is about 20% below the 15-16kH/s at 675 MHz. I may just have to live with that.


Title: Re: Antminer Z9 mini overclocked
Post by: imine2 on October 16, 2018, 07:33:54 AM
I have one Z9 mini September 2018 batch with firmware dated Sun Aug 12 17:43:41 CST 2018. Although the only GUI option is "Balanced", I can configure OC with web editor to any speed with the best speed being at 675 MHz and 95% fan speed for best cooling and is producing a stable 15-16kH/s hashing speed. I received three October 2018 batch minis today and the maximum OC speed in the GUI is the "balanced" setting of 500 MHz but can only be raised to 550 MHz using html editor. The miner will reject and revert to 500 MHz if any other number is attempted. Of course, the "Aug 12 17:43:41 CST 2018" firmware is no longer available on the Bitmain website which was replaced with the Aug 31, 2018 firmware which is what is on my new batch. I tried to save a config backup from the older device and restore to the new one but had no affect whatsoever. Did anyone happen to obtain the Aug 12, 2018 firmware before it was replaced and might it run as desired on the newer Z9 mini? The new Z9 minis are hashing at a consistent 12-13 kH/s at 550 MHz which is about 20% below the 15-16kH/s at 675 MHz. I may just have to live with that.

As far as I know Bitmain have only had may 26 and aug 31 firmware's as downloadable.

https://bitcointalk.org/index.php?topic=4610213.msg45735658#msg45735658

Permanent LINK:
Z9 mini, Batch 1 stock firmware (as far as I know the first downloadable original firmware which I downloded from Bitmains support-site), will be permanently available at: http://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz
(thanks to efudd)

About the one running aug 12 firmware - when it works don't change anything !


Title: Re: Antminer Z9 mini overclocked
Post by: eurodi on October 16, 2018, 02:15:16 PM
The only one on bitmain homepage:
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

I tried both, keep settings and also unchecked it.
Did it several times and tried every combination.

the only tiny success:
installing batch 2 firmware --> change to turbo --> keep settings ---> install original firmware
Result: 550 frequency + working temperature sensor + working fan

sadly this trick does not work with batch 1 firmware and (e.g.) 650 frequency.
Keeping setting and reverting to batch 3 firmware resets the frequency to 500.

please link with bacht 2 FW


Title: Re: Antminer Z9 mini overclocked
Post by: Subze12o on October 29, 2018, 03:10:02 AM
The only one on bitmain homepage:
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

I tried both, keep settings and also unchecked it.
Did it several times and tried every combination.

the only tiny success:
installing batch 2 firmware --> change to turbo --> keep settings ---> install original firmware
Result: 550 frequency + working temperature sensor + working fan

sadly this trick does not work with batch 1 firmware and (e.g.) 650 frequency.
Keeping setting and reverting to batch 3 firmware resets the frequency to 500.

please link with bacht 2 FW

https://file11.bitmain.com/shop-product/firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

Is from the official bitmain page so you know it has not been messed with.  They kept it on their AWS site but removed the link lol.


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on October 29, 2018, 04:24:10 AM
The only one on bitmain homepage:
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz

I tried both, keep settings and also unchecked it.
Did it several times and tried every combination.

the only tiny success:
installing batch 2 firmware --> change to turbo --> keep settings ---> install original firmware
Result: 550 frequency + working temperature sensor + working fan

sadly this trick does not work with batch 1 firmware and (e.g.) 650 frequency.
Keeping setting and reverting to batch 3 firmware resets the frequency to 500.

please link with bacht 2 FW

https://file11.bitmain.com/shop-product/firmware/Antminer-Z9-Mini-201805262047-500M.tar.gz

Is from the official bitmain page so you know it has not been messed with.  They kept it on their AWS site but removed the link lol.

Who has been "messing with" images?

Here are the md5sums of the image you linked to, and the one I host:

# md5sum antminer-z9-mini-201805262047-500m.tar.gz
0682b350dd8b53d62a11231d16d133a7  antminer-z9-mini-201805262047-500m.tar.gz
# md5sum Antminer-Z9-Mini-201805262047-500M.tar.gz
0682b350dd8b53d62a11231d16d133a7  Antminer-Z9-Mini-201805262047-500M.tar.gz

You will note they are the same.

Jason


Title: Re: Antminer Z9 mini overclocked
Post by: chipless on October 30, 2018, 05:01:41 AM
I decided to test the mini 1 last time before sending it to Bitmain. I tested 1 hashboard at a time and and it turned out 1 of the board was causing the PSU to trip. After opening it up, found the burned hashboard. Mini is hashing fine with 2 good boards now. 3 other Z9s and 2 A9s in the same server case are running fine.

https://i.imgur.com/BeGUyKF.jpg?1

https://i.imgur.com/HqH2vGg.jpg?1

Server Case, it is vented on top with a 1500 CFM QC-ES-1500 fan.

https://i.imgur.com/mZ61Qgg.jpg

I don't think that was a heat problem It looks more of a surge or a short on the chip pins inorder for it to explode out and burn the board like that it would need a full short circuit or surge with good amperage. Heat will brown or discolor the board and the component just fails internally in most cases that I have seen in 30+ yrs of electronics


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on October 30, 2018, 01:31:54 PM
I decided to test the mini 1 last time before sending it to Bitmain. I tested 1 hashboard at a time and and it turned out 1 of the board was causing the PSU to trip. After opening it up, found the burned hashboard. Mini is hashing fine with 2 good boards now. 3 other Z9s and 2 A9s in the same server case are running fine.

https://i.imgur.com/BeGUyKF.jpg?1

https://i.imgur.com/HqH2vGg.jpg?1

Server Case, it is vented on top with a 1500 CFM QC-ES-1500 fan.

https://i.imgur.com/mZ61Qgg.jpg

I don't think that was a heat problem It looks more of a surge or a short on the chip pins inorder for it to explode out and burn the board like that it would need a full short circuit or surge with good amperage. Heat will brown or discolor the board and the component just fails internally in most cases that I have seen in 30+ yrs of electronics

Adding to this, were you trying to adjust chip voltages?

-j


Title: Re: Antminer Z9 mini overclocked
Post by: fanatic26_ on October 30, 2018, 08:37:29 PM
i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!

What exactly is the problem? The fan running at 100% means the miner will be cooler and last longer, thats a good thing not a bad thing.


Title: Re: Antminer Z9 mini overclocked
Post by: Zapp777 on October 30, 2018, 09:02:51 PM
jepp, there is no problem if you dont´t mind the noice...

In the end i installed a fan-simulator and plugged the fan into an other Z9 mini


Title: Re: Antminer Z9 mini overclocked
Post by: 168kingmu on November 09, 2018, 01:05:45 PM
About firmware versions and overclocking:


I've been doing some serious digging!!!


When you login to your Z9 mini you check on first page "System - Overview"
Batch 1, 2 and 3 all seem to have
"Hardware Version:" = 9.0.0.5

"File System Version:" tells you which firmware version your Z9 mini is running on.

There are at LEAST four (4) different firmware versions for z9 mini:

1. Sat May 26 20:42:30 CST 2018 = Antminer-Z9-Mini-201805262047-500M.tar.gz
2. Sun Aug 12 17:43:41 CST 2018 = ? ? ?
3. Thu Aug 30 14:57:48 CST 2018 = ? ? ?
4. Fri Aug 31 17:02:59 CST 2018 = Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz (the now only downloadable fw on Bitmains site for z9 mini.)


May 26 and Aug 12 firmware-versions are overclockable either from SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" and for the May 26 version ofcourse you just choose the frequence here you wan't just like God intended !


Aug 30 and Aug 31 versions just ignores any frequence value from cgminer.conf or with Chrome's "Inspection" method.
If you go to the "/www/pages/cgi-bin/minerAdvanced.cgi"-file and changes value and saving (after you already made the filesystem writable). After reboot it will have changed the file back!!!


Batch 1 seem to be very overclockable !!!
I, myself, are running my single batch 1 Z9 mini on 768 MHz and it's solid !!!


For Batch 2/3 I have seen quite a few running them on 668 MHz solid with both fw May 26(after upgrade) and Aug 12 firmware's !!!


WHEN you install(upgrade) the May 26 firmware using the page "System - Upgrade" I strongly recommend you UNcheck "Keep settings:" to get as clean install and as little problems as possible.


I really recommend you checkout mining at prohashing.com dispite their "high fee" (not high in relation to what I earn compared to MPH, nanopool and flypool after 48 hours, at least for me and my friends.) Read under "Help" on prohashing.com for further info and earning possibilities if you choose a single coin to hash.)


Howto - Pool settings for prohashing.com: (here you can see mine)
Url : stratum+tcp://prohashing.com:3336
(3336 is for Equihash algorithm that z9 mini calculates)
Worker : imine2
(imine2 is the username I choose to register with at prohashing.com)
Password : n=z9mini101
(I choose the name z9mini101 where the "101" stands for machines ip:10.0.1.101 in my home network and it's just a name to identify your machine for yourself and prohashing.com. Important for them and you if you have more than one machine being able to distinguish each machine.)


May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/cwnf6 (New link - Uploaded 10 october 2018)
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and THIS LINK should work for 30 days from october 10, 2018!)


Donations - I hope all my hard work will help up your earnings:

Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW
Antminer-Z9-Mini-NAND-500M-201808311812 firmware
<option value=“500”>blance</option>  Change to <option value=“700”>blance</option>?????I restarted and restored the default settings. Is it where I am making mistakes?
Or do we set the configuration file to read-only? How can I set it up?


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on November 09, 2018, 03:06:09 PM
....
Antminer-Z9-Mini-NAND-500M-201808311812 firmware
<option value=“500”>blance</option>  Change to <option value=“700”>blance</option>?????I restarted and restored the default settings. Is it where I am making mistakes?
Or do we set the configuration file to read-only? How can I set it up?

https://releases.broked.net/antminer-z9-mini-201805262047-500m.tar.gz

Just install the batch1 firmware.

-j


Title: Re: Antminer Z9 mini overclocked
Post by: chipless on November 25, 2018, 10:42:20 PM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!

I have released a fix for fan and temp issues on batch 3 and 4 units. There is a thread here about it. It does overclock and all the good stuff runs on batch1-4 minis

https://bitcointalk.org/index.php?topic=5073285.new#new


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on November 25, 2018, 11:56:35 PM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!

I have released a fix for fan and temp issues on batch 3 and 4 units. There is a thread here about it. It does overclock and all the good stuff runs on batch1-4 minis

https://bitcointalk.org/index.php?topic=5073285.new#new

chipless, correct me if I'm misspeaking, but don't batch3 units work just fine with batch1 firmware? Is your change not specific to batch4 otherwise?

Jason


Title: Re: Antminer Z9 mini overclocked
Post by: chipless on November 26, 2018, 02:14:22 AM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!

I have released a fix for fan and temp issues on batch 3 and 4 units. There is a thread here about it. It does overclock and all the good stuff runs on batch1-4 minis

https://bitcointalk.org/index.php?topic=5073285.new#new

chipless, correct me if I'm misspeaking, but don't batch3 units work just fine with batch1 firmware? Is your change not specific to batch4 otherwise?

Jason

Jason,
Not all batch 3 units work properly with the batch 1 firmware a few later releases of the batch 3 have similar fan or temp issues like the batch 4. Some were shipped with both rev1 and rev2 hashboards., don't know how many were sent out the door that way. Just like some minis may have a rev 1.0.0 controller while others may have a rev 1.x.x. It appears it is about availability and what was on hand during assembly.

Lets not get into a pissing match on every thread I offer the free fix.


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on November 26, 2018, 02:43:46 AM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!

I have released a fix for fan and temp issues on batch 3 and 4 units. There is a thread here about it. It does overclock and all the good stuff runs on batch1-4 minis

https://bitcointalk.org/index.php?topic=5073285.new#new

chipless, correct me if I'm misspeaking, but don't batch3 units work just fine with batch1 firmware? Is your change not specific to batch4 otherwise?

Jason

Jason,
Not all batch 3 units work properly with the batch 1 firmware a few later releases of the batch 3 have similar fan or temp issues like the batch 4. Some were shipped with both rev1 and rev2 hashboards., don't know how many were sent out the door that way. Just like some minis may have a rev 1.0.0 controller while others may have a rev 1.x.x. It appears it is about availability and what was on hand during assembly.

Lets not get into a pissing match on every thread I offer the free fix.

Was not a pissing match.  Was an honest-to-God question, hence me approaching as "correct me if I'm misspeaking". And I'm glad this is working for you, honestly.

You said it was "cgminer from batch4 firmware in the batch1 image" -- What else was different? The _only_ portion of the image that actually interacts directly with the ASICs *IS* cgminer, so I'm having a hard time understanding what else could have possibly changed. Rephrased: how is what you did any different than just the batch 4 image by itself?

If it was a pissing match, I'd point out that all you did was copy one file.... which tells me there is zero reason that the latest firmware wouldn't just work on all batchX minis. The only other differences in batch1 and "batch4" as you call it from an image perspective is that batch4 added an updated libncurses (and given the opkg configuration, was likely a mistake on bitmain's part), and that the HTML UI was updated to not look for a fourth chain.... So "your" firmware will not work with 4 chains -- at least from a presentation perspective.

Jason


Title: Re: Antminer Z9 mini overclocked
Post by: chipless on November 26, 2018, 05:20:57 AM
z9 mini  batch 3. April firmvare. |Not working PWM, just 6000 all the time. Changing value in menu doesnt affect anyhow
https://clip2net.com/s/3WZMICb
https://clip2net.com/s/3WZMLg3

i have got the same problem with my batch 3 mini.
Once i install an other firmware the temperature sensors dont seem to work and the fans always spin on 100%.

Does anyone have the same problem and does anyone have a solution?

Thx!

I have released a fix for fan and temp issues on batch 3 and 4 units. There is a thread here about it. It does overclock and all the good stuff runs on batch1-4 minis

https://bitcointalk.org/index.php?topic=5073285.new#new

chipless, correct me if I'm misspeaking, but don't batch3 units work just fine with batch1 firmware? Is your change not specific to batch4 otherwise?

Jason

Jason,
Not all batch 3 units work properly with the batch 1 firmware a few later releases of the batch 3 have similar fan or temp issues like the batch 4. Some were shipped with both rev1 and rev2 hashboards., don't know how many were sent out the door that way. Just like some minis may have a rev 1.0.0 controller while others may have a rev 1.x.x. It appears it is about availability and what was on hand during assembly.

Lets not get into a pissing match on every thread I offer the free fix.

Was not a pissing match.  Was an honest-to-God question, hence me approaching as "correct me if I'm misspeaking". And I'm glad this is working for you, honestly.

You said it was "cgminer from batch4 firmware in the batch1 image" -- What else was different? The _only_ portion of the image that actually interacts directly with the ASICs *IS* cgminer, so I'm having a hard time understanding what else could have possibly changed. Rephrased: how is what you did any different than just the batch 4 image by itself?

If it was a pissing match, I'd point out that all you did was copy one file.... which tells me there is zero reason that the latest firmware wouldn't just work on all batchX minis. The only other differences in batch1 and "batch4" as you call it from an image perspective is that batch4 added an updated libncurses (and given the opkg configuration, was likely a mistake on bitmain's part), and that the HTML UI was updated to not look for a fourth chain.... So "your" firmware will not work with 4 chains -- at least from a presentation perspective.

Jason

The fan/temp problem lies in cgminer, batch 1 cgminer don't like batch 3 and 4 the best either don't read temp or is wacky temp so taking the batch 3 cgminer and unlocking it and patching it to the batch 1 image gave the over clock options in the web gui. As far as the 4th chain how many are using 4 boards on a mini? The last I checked your versions don't show the 4th chain for the freq selection either.

Other then that no changes needed to be made to make it overclock and working temps/fan for the b3 and 4's.

I already explained what was done when you said you were going to disassemble it so yes it is now a pissing match because you want to sit and act dumb to something you knew the answer to.  All you are looking to do is steer people away from my version which is free and push towards your dev-mode or paid version Bottom line is that it works on ALL mini batches with ALL the intended functions and it is FREE who cares how I got there.

What is lame is how you go and talk down on every fix that has been put out that is free. Mine and Smartass11 have both been your targets. So it is going to be like this from now on, you do your projects and others will do theirs without any talking down on each others work or making accusations. I have visions of what I want to do and you have your own visions, if there continues to be the bs I will rip every version of your images apart and share the info so others can begin to create their own free versions. I have been thru this crap many times over the last 40 yrs so we can all play nice or we can get down to the nitty it your choice at this point.



Title: Re: Antminer Z9 mini overclocked
Post by: efudd on November 26, 2018, 05:54:31 AM
....snip...

The fan/temp problem lies in cgminer, batch 1 cgminer don't like batch 3 and 4 the best either don't read temp or is wacky temp so taking the batch 3 cgminer and unlocking it and patching it to the batch 1 image gave the over clock options in the web gui. As far as the 4th chain how many are using 4 boards on a mini? The last I checked your versions don't show the 4th chain for the freq selection either.

Other then that no changes needed to be made to make it overclock and working temps/fan for the b3 and 4's.

I already explained what was done when you said you were going to disassemble it so yes it is now a pissing match because you want to sit and act dumb to something you knew the answer to.  All you are looking to do is steer people away from my version which is free and push towards your dev-mode or paid version Bottom line is that it works on ALL mini batches with ALL the intended functions and it is FREE who cares how I got there.

What is lame is how you go and talk down on every fix that has been put out that is free. Mine and Smartass11 have both been your targets. So it is going to be like this from now on, you do your projects and others will do theirs without any talking down on each others work or making accusations. I have visions of what I want to do and you have your own visions, if there continues to be the bs I will rip every version of your images apart and share the info so others can begin to create their own free versions. I have been thru this crap many times over the last 40 yrs so we can all play nice or we can get down to the nitty it your choice at this point.


Truth; I am not the one who assumed the previous response was an attack, however. And smarty has not been a target; he did his work, acknowledge mine, and I his. that was that. stop comparing yourself to others.

Mine shows 4th just fine, thanks-- this has been commented on by a few so far. And to be fair, I didn't know the answer until your response; at which point I took the time to figure it out myself. So stop assuming, since you are flat out wrong each time you have assumed so far.

If you call that talking down, fine.  Don't threaten me though. rip mine apart, good luck. You'll need help to get through it since you cannot even figure out what the simple shell expansions mean and assumed that shell matches and grouping (example ${foo#bar}) meant correlation in variables inside the firmware. Honestly, I welcome the competition. Please, rip anything past my initial release apart. Let me know when you figure it out because I welcome the awareness on any mistake I made. Don't assume me to be a junior idiot. I can acknowledge mistakes.

I actually apologized to you, took the high road, then you commented that it was a "pissing match" followed by "lame that I...". Grow some, own your mistakes and apologize yourself.

Jason


Title: Re: Antminer Z9 mini overclocked
Post by: chipless on November 26, 2018, 08:19:58 AM
....snip...

The fan/temp problem lies in cgminer, batch 1 cgminer don't like batch 3 and 4 the best either don't read temp or is wacky temp so taking the batch 3 cgminer and unlocking it and patching it to the batch 1 image gave the over clock options in the web gui. As far as the 4th chain how many are using 4 boards on a mini? The last I checked your versions don't show the 4th chain for the freq selection either.

Other then that no changes needed to be made to make it overclock and working temps/fan for the b3 and 4's.

I already explained what was done when you said you were going to disassemble it so yes it is now a pissing match because you want to sit and act dumb to something you knew the answer to.  All you are looking to do is steer people away from my version which is free and push towards your dev-mode or paid version Bottom line is that it works on ALL mini batches with ALL the intended functions and it is FREE who cares how I got there.

What is lame is how you go and talk down on every fix that has been put out that is free. Mine and Smartass11 have both been your targets. So it is going to be like this from now on, you do your projects and others will do theirs without any talking down on each others work or making accusations. I have visions of what I want to do and you have your own visions, if there continues to be the bs I will rip every version of your images apart and share the info so others can begin to create their own free versions. I have been thru this crap many times over the last 40 yrs so we can all play nice or we can get down to the nitty it your choice at this point.


Truth; I am not the one who assumed the previous response was an attack, however. And smarty has not been a target; he did his work, acknowledge mine, and I his. that was that. stop comparing yourself to others.

Mine shows 4th just fine, thanks-- this has been commented on by a few so far. And to be fair, I didn't know the answer until your response; at which point I took the time to figure it out myself. So stop assuming, since you are flat out wrong each time you have assumed so far.

If you call that talking down, fine.  Don't threaten me though. rip mine apart, good luck. You'll need help to get through it since you cannot even figure out what the simple shell expansions mean and assumed that shell matches and grouping (example ${foo#bar}) meant correlation in variables inside the firmware. Honestly, I welcome the competition. Please, rip anything past my initial release apart. Let me know when you figure it out because I welcome the awareness on any mistake I made. Don't assume me to be a junior idiot. I can acknowledge mistakes.

I actually apologized to you, took the high road, then you commented that it was a "pissing match" followed by "lame that I...". Grow some, own your mistakes and apologize yourself.

Jason

As I said you do your images and I will do mine. I did acknowledge your work many times and stated exactly extended features your image was the way to go I did also tell you already what was done to the image to get the fans and temp working correct for the late b3 and b4 mini's when you first got upset that I released it the same weekend you were making your release.


Title: Re: Antminer Z9 mini overclocked
Post by: fliperone on November 26, 2018, 11:41:41 AM
Guys please. Instead of arguing try to join forces. We've been waiting for Z9 mini FW for way too long. Cracking the voltage control should be the ultimate goal.


Title: Re: Antminer Z9 mini overclocked
Post by: chipless on November 26, 2018, 10:26:19 PM
Guys please. Instead of arguing try to join forces. We've been waiting for Z9 mini FW for way too long. Cracking the voltage control should be the ultimate goal.

I agree we need to work together on some issues but since I released a fan and temp fix for the batch 4's for free he has been mad or I don't know. If I were charging for it then I could see him questioning every little thing about it but I am not and only asked for a donation if it worked for the user. If I don't get a donation who cares at least people don't have to listen to the fan run at 100% when using certain firmware


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on November 27, 2018, 03:17:46 AM
Mini support is now available in the Z Series firmware. Please see my other thread for details.

Thanks!

Jason


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on November 27, 2018, 01:04:50 PM
Mini support is now available in the Z Series firmware. Please see my other thread for details.

Thanks!

Jason
Hi I have missed this thread for a few months.. did i read the above right,,, can we get 16 sols from a batch 2 z9 mini ?
Thanks


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on November 27, 2018, 01:13:06 PM
Mini support is now available in the Z Series firmware. Please see my other thread for details.

Thanks!

Jason
Hi I have missed this thread for a few months.. did i read the above right,,, can we get 16 sols from a batch 2 z9 mini ?
Thanks

htautosjay - it will vary to be honest. With the per-hashboard feature, I've been able to get +5% out of batch2s. That isn't 16k on most, but is an additional 5% from baseline. Tuning takes some work though. Dev fees are disabled until 12/1, so you are welcome to try it on a mini and see.

To tune:

1) Set global frequency to 650. Set each other frequency to "Use Global".
2) Observe your boards for at least 10 minutes, if any drop out, on the next cycle decrease their frequency by 1 step in the pulldown.
3) Repeat this cycle until you have a stable minimum frequency for your boards.
4) To start the 'upwards tuning', choose one board (#1 for example) and increase it's frequency by 1 step.
5) Observe the board for at least 10 minutes to see if it is stable. If it is, repeat #4. If it is not, drop down 1 step and move to the next board.

Going through this process (which hopefully makes sense), you should be able to tune your units for your individual system maximums. It's best to do this with the fans set to 100% so you can remove thermals from the equation -- after which, set the fans back however you want them and see if your boards stay stable. If they do, good, of they don't, eithee decrease freqeuncy by 1 step or increase fan.

Good luck!

Jason


Title: Re: Antminer Z9 mini overclocked
Post by: htautosjay on December 01, 2018, 10:44:25 PM
Mini support is now available in the Z Series firmware. Please see my other thread for details.

Thanks!

Jason
Hi I have missed this thread for a few months.. did i read the above right,,, can we get 16 sols from a batch 2 z9 mini ?
Thanks

htautosjay - it will vary to be honest. With the per-hashboard feature, I've been able to get +5% out of batch2s. That isn't 16k on most, but is an additional 5% from baseline. Tuning takes some work though. Dev fees are disabled until 12/1, so you are welcome to try it on a mini and see.

To tune:

1) Set global frequency to 650. Set each other frequency to "Use Global".
2) Observe your boards for at least 10 minutes, if any drop out, on the next cycle decrease their frequency by 1 step in the pulldown.
3) Repeat this cycle until you have a stable minimum frequency for your boards.
4) To start the 'upwards tuning', choose one board (#1 for example) and increase it's frequency by 1 step.
5) Observe the board for at least 10 minutes to see if it is stable. If it is, repeat #4. If it is not, drop down 1 step and move to the next board.

Going through this process (which hopefully makes sense), you should be able to tune your units for your individual system maximums. It's best to do this with the fans set to 100% so you can remove thermals from the equation -- after which, set the fans back however you want them and see if your boards stay stable. If they do, good, of they don't, eithee decrease freqeuncy by 1 step or increase fan.

Good luck!

Jason
Thank you for your reply, i have a bunch of batch 2's running between and 13.3 and 14 sols.. i will have a look at what you suggest.. thanks again


Title: Re: Antminer Z9 mini overclocked
Post by: ilmaz on December 30, 2018, 08:50:08 AM
hi dear every one know about overclockable frimware for z9mini batch4?
also batch4 overclockable or no?


Title: Re: Antminer Z9 mini overclocked
Post by: ilmaz on January 02, 2019, 11:53:50 AM
About firmware versions and overclocking:


I've been doing some serious digging!!!


When you login to your Z9 mini you check on first page "System - Overview"
Batch 1, 2 and 3 all seem to have
"Hardware Version:" = 9.0.0.5

"File System Version:" tells you which firmware version your Z9 mini is running on.

There are at LEAST four (4) different firmware versions for z9 mini:

1. Sat May 26 20:42:30 CST 2018 = Antminer-Z9-Mini-201805262047-500M.tar.gz
2. Sun Aug 12 17:43:41 CST 2018 = ? ? ?
3. Thu Aug 30 14:57:48 CST 2018 = ? ? ?
4. Fri Aug 31 17:02:59 CST 2018 = Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz (the now only downloadable fw on Bitmains site for z9 mini.)


May 26 and Aug 12 firmware-versions are overclockable either from SSH into machine and changing the file "/config/cgminer.conf" or from Chrome using "Inspection" for the field where you choose "frequence" (May 26 version) alt. "mode" (Aug 12 version) on page "Miner configuration - Advanced settings" and for the May 26 version ofcourse you just choose the frequence here you wan't just like God intended !


Aug 30 and Aug 31 versions just ignores any frequence value from cgminer.conf or with Chrome's "Inspection" method.
If you go to the "/www/pages/cgi-bin/minerAdvanced.cgi"-file and changes value and saving (after you already made the filesystem writable). After reboot it will have changed the file back!!!


Batch 1 seem to be very overclockable !!!
I, myself, are running my single batch 1 Z9 mini on 768 MHz and it's solid !!!


For Batch 2/3 I have seen quite a few running them on 668 MHz solid with both fw May 26(after upgrade) and Aug 12 firmware's !!!


WHEN you install(upgrade) the May 26 firmware using the page "System - Upgrade" I strongly recommend you UNcheck "Keep settings:" to get as clean install and as little problems as possible.


I really recommend you checkout mining at prohashing.com dispite their "high fee" (not high in relation to what I earn compared to MPH, nanopool and flypool after 48 hours, at least for me and my friends.) Read under "Help" on prohashing.com for further info and earning possibilities if you choose a single coin to hash.)


Howto - Pool settings for prohashing.com: (here you can see mine)
Url : stratum+tcp://prohashing.com:3336
(3336 is for Equihash algorithm that z9 mini calculates)
Worker : imine2
(imine2 is the username I choose to register with at prohashing.com)
Password : n=z9mini101
(I choose the name z9mini101 where the "101" stands for machines ip:10.0.1.101 in my home network and it's just a name to identify your machine for yourself and prohashing.com. Important for them and you if you have more than one machine being able to distinguish each machine.)


May 26 firmware:
File: Antminer-Z9-Mini-201805262047-500M.tar.gz
sha-1: 8791eee569dfff728c8363e5d8fd93f68957a2ee
https://ufile.io/cwnf6 (New link - Uploaded 10 october 2018)
(This link goes to the May 26 firmware which I've shared at Uploadfiles.io and THIS LINK should work for 30 days from october 10, 2018!)


Donations - I hope all my hard work will help up your earnings:

Bitcoin (BTC): 1HY5ZvPvx3fx5iA5cQKjw9ZuArse2STuCb
Litecoin (LTC): LZPmxZdoe8ZNL8av5CkPPBEEBJVdoFQbS6
Zcash (ZEC): t1d35jvkzKcWybpCqojZmgDZkcFC7iBwe8w
Monero (XMR): 48gVGMbZsAD5xtbpEpBKTJiDz6uMrnkTxjMcJGGFtore7i7wckSqmvYKfPVGQGab6U9kK76nGa91fhL SDvPfK4bYKkJaXeW

hi imine thank for information about overclock batch4
we,upload your sharing frimware for z9mini batch 4
after upload in advanced setting we can change fec and about some fec we can get about 15 ksol but after 20min for every fec after everything dead cheaps temp and pools
please help me if you can

thanks alot


Title: Re: Antminer Z9 mini overclocked
Post by: Canadian Sensei on February 09, 2019, 04:11:22 AM
Guys,
I'm setting up my first z9 mini, batch1.  It won't seem to overclock past 706M.  Once I get higher than that the ksol start to decrease.  example: 750M = ~8ksol.  Any idea why that could be?  Any help would be greatly appreciated.
Thanks


Title: Re: Antminer Z9 mini overclocked
Post by: astraleureka on February 09, 2019, 04:15:34 AM
Not all chips can handle an overclock, that's why they ship with their default frequency. The chips are rated to work at their factory frequency only.


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on February 09, 2019, 04:07:47 PM
Guys,
I'm setting up my first z9 mini, batch1.  It won't seem to overclock past 706M.  Once I get higher than that the ksol start to decrease.  example: 750M = ~8ksol.  Any idea why that could be?  Any help would be greatly appreciated.
Thanks

Don't focus so much on the frequency, rather look at the hash rate and adjust to the best ability there. If you have a single board that is slowing the system down, you can try my firmware (https://releases.broked.net) which will let you clock each board separately.... and "soon" the dev-fee will be 0% if you mine on a supported pool (to be announced).

-j


Title: Re: Antminer Z9 mini overclocked
Post by: tux1975 on March 15, 2019, 08:25:23 AM
hello oc's
exists a firmware with a adjustable fan curve? I have rebuilt my z9mini on water cooling and would like to adjust the fan speed.
https://www.ruhlan.de/Kniffo/z9minihydro.jpg
The temperature is good and I want more silence now ::)
https://www.ruhlan.de/Kniffo/temp.jpg
regards Jens


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on March 15, 2019, 01:02:21 PM
hello oc's
exists a firmware with a adjustable fan curve? I have rebuilt my z9mini on water cooling and would like to adjust the fan speed.
http://www.ruhlan.de/Kniffo/z9minihydro.jpg
The temperature is good and I want more silence now ::)
http://www.ruhlan.de/Kniffo/temp.jpg
regards Jens

No, unfortunately not.

-j


Title: Re: Antminer Z9 mini overclocked
Post by: tux1975 on March 15, 2019, 05:54:32 PM
No, not without hardware modifications ...
the power stage does not deliver enough  ;) these 3 hashboards work stable up to 681 MHz after that the hashrate Drops

Jens


Title: Re: Antminer Z9 mini overclocked
Post by: lceman11 on May 18, 2019, 02:10:29 AM
Quote
almost every antminer (even older models) has one additional connection. I thought the same but no one did it before. I doubt that bitmain will send you a new board (solo) for 200 usd.

Im sure they will since another user on this forum got one sent to him after he burned out a board, my question is will it work ? Im hoping some one with 2 units can set one up and test it, if it works i will hit up bitmain and say i fried one of my boards due to overclocking and i can order a replacement just like the other user.

the post is some where in this thread
https://bitcointalk.org/index.php?topic=3509006.0 (https://bitcointalk.org/index.php?topic=3509006.0)


It will work but you need to adjust firmware so it initiates the 4th board or the 4th chane (for z9 mini). But what I've done is simply loaded firm from big z9 onto mini with 4 boards - z9 big one has  2 chains per board so it will load what you need - works like a charm at 681 I get stable 24K. I will be immersing them in a little bit :)  one thing though it shows stupid temps like 1C or 7c but as long as you keep fan at 75% or above or in my case immerse them you should be ok


Title: Re: Antminer Z9 mini overclocked
Post by: goxi87 on May 23, 2019, 07:34:02 AM
Does anyone have firmware for z9 mini batch 2?


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on May 23, 2019, 10:58:00 AM
Does anyone have firmware for z9 mini batch 2?

Responded on Discord....


Title: Re: Antminer Z9 mini overclocked
Post by: Longsnowsm on May 31, 2019, 06:10:53 PM
Is it possible to undervolt the z9 mini's?  I have a couple of batch 1's that it would be nice to know if it is possible to reduce the power draw on these little miners and hold the same hash rate.  Thanks.


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on May 31, 2019, 06:30:22 PM
Is it possible to undervolt the z9 mini's?  I have a couple of batch 1's that it would be nice to know if it is possible to reduce the power draw on these little miners and hold the same hash rate.  Thanks.

Not at this point in time.


Title: Re: Antminer Z9 mini overclocked
Post by: Cool_Lamer on June 08, 2019, 06:27:32 PM
New firmware released Antminer-Z9-Mini-fixed-500M-201905171644. Are there any changes in the hashrate plan?


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on June 08, 2019, 08:51:50 PM
For that one, no.


Title: Re: Antminer Z9 mini overclocked
Post by: Goodvalony on June 08, 2019, 08:53:35 PM
i have never trusted Antminer mining devices because alot of people in my country has been scammed of their hard earn bitcoin with this device. people were ask to contribute and they will earn from a pool mining. it looks like it working


Title: Re: Antminer Z9 mini overclocked
Post by: SilverDesert on June 09, 2019, 11:17:30 AM
Guys,
I updated to the new antminer z9 mini firmware from Bitmain's site. Now I am stuck with Antminer-Z9-Mini-fixed-500M-201905171644.tar.gz.
If I try any file it says the file is not signed. I cannot even SSH to the miner like before.
Any help?


Title: Re: Antminer Z9 mini overclocked
Post by: efudd on June 09, 2019, 02:29:42 PM
Guys,
I updated to the new antminer z9 mini firmware from Bitmain's site. Now I am stuck with Antminer-Z9-Mini-fixed-500M-201905171644.tar.gz.
If I try any file it says the file is not signed. I cannot even SSH to the miner like before.
Any help?

Yes... all bitmain. New images are like this.... if you want to get off their stuff cause my AD card boot image and install whatever nonlocked firmware you want as the last step.

Https://releases.broked.net


Title: Re: Antminer Z9 mini overclocked
Post by: SilverDesert on June 09, 2019, 04:29:41 PM
Thank you for your kind help  :)


Title: Re: Antminer Z9 mini overclocked
Post by: antminerguruguy on August 31, 2019, 07:33:35 PM
Thank you for your kind help  :)

Can anyone help me reset my firmware for my z9 mini I reinstalled the new firmware now it just says balance and stuck at freq 500m forever it use to say " BrentSecond " for firmware and allowed me to change the frequenzy but I was having pool issues to I thought I would reset it now its File System Version   Fri May 17 16:23:07 CST 2019   it use to be 2018 file system there I think now I cant do anything can anyone help me or is this some kind of joke the chinese enjoy torturing us with annoying control efforts?