ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH

[thedreamer]

FOR SALE

40 Hosted Miners $22,000

Approximately 200 TH/s

I have 40 Antminer S7s for sale.  They are being hosted in Washington State in the US.  I am wanting someone to take control of them and start earning profits with them immediately.  This will avoid shipping, installation, and purchasing component parts.  40 miners and 24 PSUs (Power Supplies).  I rent 16 PSUs for $5 per month for the rest of them.  I will provide 1 day of training via skype or phone and even reprogram them for you.   

I pay $80/mo per miner and rent PSUS for $5/mo per miner(16).  I have full control of the miners through the user interface.  I am asking $550 for 40 S7 miners and 24 Bitmain PSUs.  Total Cost $22,000.  PM me if interested.  I take Bitcoin.  Haha

I'll offer ya $22BTC.

[1715127167]

1715127167

[philipma1957]

Bitmain:  Please list the new 2.7Th miner without pouer supply for purchase on your main site =)


I have a feeling theres more than just me with plenty of power supplies to power these waiting to be re-purposed from older antminers.

Sell it on eBay it is worth about 60.

There is no,way they will sell it without the,psu

[HerbPean]

Anyone has an alternate solution to buy the backplane to add an extra fan to the S7-F1 ? I got 4 of thoses and the shipping from bitmain is an ultimate joke. 29$us (UPS is like 60$) for 4 backplanes that cost 2.80$ US.

I would also like 4 fans. If anyone has a cheap source.

Thanks.

I've seen 2 alternative solutions:
1: Fan mounting screws https://bitcointalk.org/index.php?topic=1420330.msg14869061#msg14869061
2: Zip ties https://bitcointalk.org/index.php?topic=1420330.msg14510082#msg14510082

Sanyo Denki SAN Ace 120 3.0 Amp 12 Volt 120mm PWM Fan 224 CFM
http://www.amazon.com/Sanyo-Denki-SAN-Ace-120mm/dp/B00QWB1X3O?ie=UTF8&keywords=sanyo%20san%20ace&qid=1464549874&ref_=sr_1_3&sr=8-3

Delta Tfc1212de Powerful Cooling Fan 12038 12v 3.9A 252cfm 5200rpm
http://www.ebay.com/itm/Delta-Tfc1212de-Powerful-Cooling-Fan-12038-12v-3-9A-252crm-5200rpm-/182103037065?hash=item2a662fd489:g:dE0AAOSwdrRXGmxW

thanks

[HerbPean]

I will just add this, the S7-F1 is not really a good miner for summer, one fan is not enough. I'm upgrading them all with a second fan

[Sierra8561]

I just noticed there is a new s7 firmware. I also noticed there are asic datasheets. I've never noticed that before are they new? https://www.bitmaintech.com/support.htm?pid=00720141220132903742H2RLy6C40630

[RichBC]

I just noticed there is a new s7 firmware. I also noticed there are asic datasheets. I've never noticed that before are they new? https://www.bitmaintech.com/support.htm?pid=00720141220132903742H2RLy6C40630

They have all been there since release of the Miners that use them.

Rich

[Sierra8561]

I just noticed there is a new s7 firmware. I also noticed there are asic datasheets. I've never noticed that before are they new? https://www.bitmaintech.com/support.htm?pid=00720141220132903742H2RLy6C40630

They have all been there since release of the Miners that use them.

Rich

That's crazy, I've never noticed.

[elrippo]

YOu guys did notice the new S9....

[Real-Duke]

YOu guys did notice the new S9....

Silence is coming over this thread....

[Unacceptable]

YOu guys did notice the new S9....

Silence is coming over this thread....

Because S7 is sooo 2015 

[_kai_]

Don't suppose anyone's got any words of wisdom on what's going on here... just started tonight... 
I did search and I found nothing similar... which is worrying considering this is bitmain equipment! 

root@antMiner:/config# freq_value=0782
root@antMiner:/config# chip_value=200
root@antMiner:/config# chip_num=54
root@antMiner:/config# freq_m=$(($chip_value * 1000))                                                                           
root@antMiner:/config# timeout=$((2 ** (32 - * (256 / $chip_num) / freq_m / 64))                                             
root@antMiner:/config# PARAMS="--bitmain-dev /dev/bitmain-asic --bitmain-options 115200:32:8:$timeout:$chip_value:$freq_value:0725 --bitmain-checkn2diff --bitmain-hwerror --version-file /usr/bin/compile_time --queue 8192"
root@antMiner:/config# echo $PARAMS
--bitmain-dev /dev/bitmain-asic --bitmain-options 115200:32:8:5:200:0782:0725 --bitmain-checkn2diff --bitmain-hwerror --version-file /usr/bin/compile_time --queue 8192
root@antMiner:/config# screen -list
No Sockets found in /tmp/screens/S-root.

root@antMiner:/config# start-stop-daemon -b -S -x screen -- -S cgminer -t cgminer -m -d "$DAEMON" $PARAMS --api-listen --default-config /config/cgminer.conf
root@antMiner:/config# screen -list
No Sockets found in /tmp/screens/S-root.

root@antMiner:/config# cgminer $PARAMS -D --api-listen --default-config /config/cgminer.conf 2>&1 | tee log
 [2016-06-02 08:58:19] Global quota greatest common denominator set to 1
 [2016-06-02 08:58:19] Global quota greatest common denominator set to 1
 [2016-06-02 08:58:19] Global quota greatest common denominator set to 1
 [2016-06-02 08:58:19] Miner compile time: Fri Oct 23 16:21:24 CST 2015 type: Antminer S7
 [2016-06-02 08:58:19] Global quota greatest common denominator set to 1                   
 [2016-06-02 08:58:19] Global quota greatest common denominator set to 1                   
 [2016-06-02 08:58:19] Global quota greatest common denominator set to 1                   
 [2016-06-02 08:58:19] Miner compile time: Fri Oct 23 16:21:24 CST 2015 type: Antminer S7                   
 [2016-06-02 08:58:19] Started cgminer 4.8.0
 [2016-06-02 08:59:47] BTM get work queued number:9 neednum:64
 [2016-06-02 08:59:47] BTM: No enough work to send, queue num=10
 [2016-06-02 08:59:47] BTM0: No matching work - HW error
 [2016-06-02 08:59:47] Generated target 0000000000000000000000000000000000000000
0000000000ffff0000000000
 [2016-06-02 08:59:47] Generated stratum work
 [2016-06-02 08:59:47] BTM: Work task queued(9) fifo space(16320) needsend(64)
 [2016-06-02 08:59:47] Pushing work from pool 0 to hash queue
 [2016-06-02 08:59:47] BTM get work queued number:9 neednum:64 [2016-06-02 08:59:47] BTM0: invalid nonce - HW error
 [2016-06-02 08:59:47] BTM: No enough work to send, queue num=10
 [2016-06-02 08:59:47] BTM0: No matching work - HW error
 [2016-06-02 08:59:47] BTM0: invalid nonce - HW error [2016-06-02 08:59:47] Popping work from get queue to get work
 [2016-06-02 08:59:47] Selecting pool 0 for work
 [2016-06-02 08:59:47] Generated stratum merkle 6a4d11683399ff4c147da1f9e0e2bdb9726602b56188e304919e1ed8a456d276
 [2016-06-02 08:59:47] Generated stratum header 00000004db927871dc96870990749d35eb81bcaf08775be60367cb1d00000000000000006a4d116 83399ff4c147da1f9e0e2bdb9726602b56188e304919e1ed8a456d276574ff57818058436000000 000000008000000000000000000000000000000000
000000000000000000000000
 [2016-06-02 08:59:47] Pushing work from pool 0 to hash queue
 [2016-06-02 08:59:47] BTM0: No matching work - HW error
 [2016-06-02 08:59:47] BTM0: invalid nonce - HW error

[HerbPean]

Don't suppose anyone's got any words of wisdom on what's going on here... just started tonight...  
I did search and I found nothing similar... which is worrying considering this is bitmain equipment!  

[2016-06-02 08:59:47] BTM0: No matching work - HW error
 [2016-06-02 08:59:47] BTM0: invalid nonce - HW error

What's the current % of HW in the UI ?

The unit is trying to hash but you are getting Hardware Error.

You need to give us more information. It is still hashsing ? Not at all ? HW % ?

[_kai_]

What's the current % of HW in the UI ?

The unit is trying to hash but you are getting Hardware Error.

You need to give us more information. It is still hashsing ? Not at all ? HW % ?

Sorry, it's hosted and it was 3am, had to wait for more info.

First off, cgminer wouldn't even start, (no hashing) was spitting out all that info in the shell, and not doing anything.

He tried the blades separately, and eventually got it hashing - on one blade. The other two are sitting there doing nothing now, but at least it's doing something..

https://cdn.pbrd.co/images/1oxDcIe6.jpg

[philipma1957]

Okay the freq is set to 612.
The error rates suck.

So bad psu
Or freq is set too high.
So try setting freq to 575 see what you get.

That board shows 54 chips.

My guess is you have an older batch 1-7 model

They do not clock higher then 637. And need a hot psu to do that.

So at 612 the psu may be lacking the testicles to provide the power you need.

Go with some lower clocks

575 even as low as 525 to see if the gear fires up

[_kai_]

Okay the freq is set to 612.
The error rates suck.

So bad psu
Or freq is set too high.
So try setting freq to 575 see what you get.

That board shows 54 chips.

My guess is you have an older batch 1-7 model

They do not clock higher then 637. And need a hot psu to do that.

So at 612 the psu may be lacking the testicles to provide the power you need.

Go with some lower clocks

575 even as low as 525 to see if the gear fires up

Thanks Philipma, it was running at that freq rate ok up until yesterday (since Nov last year or thereabouts?), but things change, will get him to fiddle some more when he has time.  

[jtoomim]

I'm the one who took this screenshot and is responsible for the hosting of _kai_'s machine.

Just so you know, the cgminer output paste was from a different boot of this machine. During that boot, it appeared that cgminer wasn't starting automatically, and the stats screen just showed 0s on the top line (hashrate, elapsed, etc.) and blanks everywhere else (pool info, ASIC status, fan speed). Because of this, I decided to SSH in and start it from the command line to get more debugging information. At the same time, I unplugged two hashboards, in the hope that the remaining hashboard (the bottom one according to both the screenshot and the physical position in the rig) would work. I then saw all of this HW error stuff in the log output. Later on, I switched hashboards and got it to run again with only the top hashboard. I then plugged in all three hashboards again, and got the attached screenshot.

The PSU is a server-grade DPS1200FB running on 240V, and supplies an open-circuit voltage of 12.30 V, and at full load usually gives around 12.15 V. I have not yet seen a DPS1200FB shut down from overload on an S7, and the problem does not go away if I power only one hashboard at a time, so I am inclined to think that the PSU wimping out is an unlikely explanation. Individual chips burning out from mild overvoltage or transient spikes is more plausible, but I think still unlikely.

Intake air temperature was below 20°C at the time of the fault. The rig crashed at 1:25am local time. None of our cooling system was experiencing a failure at the time that the rig crashed. Both fans on the rig appear to be functional.

[dmwardjr]

Has bitmaintech.com been non-accessible for anyone else?  If so, for how long?

[_kai_]

Has bitmaintech.com been non-accessible for anyone else?  If so, for how long?

Been working for me the few times I looked at it today.

[MyRig]

You may have the damaged hash PCB.  these 54-chip model are VERY SPECIFIC to the default frequency set by the factory.  It may hash at rate over 600Mhz, but you will risk of loosing your hash PCB soon or later.  Running for 6-7 months at over clocked condition with 1200W psu, i think you got a good run out of this S7.

DPS1200W may be able to power on earlier batch of S7 at the spec frequency but may be a bit pushing the PSU to the limit.  If you think its the PSU, as these server PSU do degrade time to time, you can try frequency at 575mhz and another DPS1200 to see if it can come to life.

If not, hash pcb is more than likely damaged.  There may be a chance of repair if you do not see any visible burnt mark or peeled off layers.

What's the current % of HW in the UI ?

The unit is trying to hash but you are getting Hardware Error.

You need to give us more information. It is still hashsing ? Not at all ? HW % ?

Sorry, it's hosted and it was 3am, had to wait for more info.

First off, cgminer wouldn't even start, (no hashing) was spitting out all that info in the shell, and not doing anything.

He tried the blades separately, and eventually got it hashing - on one blade. The other two are sitting there doing nothing now, but at least it's doing something..

[_kai_]

https://cdn.pbrd.co/images/1oxDcIe6.jpg

Chain 2 and 3 are back with 30 o's each, but not hashing. (500 freq). Fun stuff!