ANTMINER S3+ Discussion and Support Thread

[Stratobitz]

Am I being skimmed?!

I logged into one of my S3 units today, and checked under RealTime Graphs -> Connections.

There's a bunch of really strange domains:ports that seem to come and go, only sending/receiving 1 or 2 packets.

It says the source is the miner IP (static) but then all random 5 digit ports.  The destination for these weird pop up connections are:

cheezum.mattnordoff.net:123
Ntp2.h.vporn.com:123
Others...

Of course these are listed with my pool connections as well.

Is this hacking/skimming taking place?

I still have this miner using the default password root for the miner, is it important to change the passwords?

Or is this because I'm in the original cgminer software that came with Batch 7.

Or is this normal.

Many thanks!

Strato

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[Count_Frackula]

Am I being skimmed?!

I logged into one of my S3 units today, and checked under RealTime Graphs -> Connections.

There's a bunch of really strange domains:ports that seem to come and go, only sending/receiving 1 or 2 packets.

It says the source is the miner IP (static) but then all random 5 digit ports.  The destination for these weird pop up connections are:

cheezum.mattnordoff.net:123
Ntp2.h.vporn.com:123
Others...

Of course these are listed with my pool connections as well.

Is this hacking/skimming taking place?

I still have this miner using the default password root for the miner, is it important to change the passwords?

Or is this because I'm in the original cgminer software that came with Batch 7.

Or is this normal.

Many thanks!

Strato

Googling "cheezum.mattnordoff.net:123" and "Ntp2.h.vporn.com:123" indicates that they're NTP servers.  Likely these are just NTP servers that are in the NTP pool you're hitting.  To be safe though, I would update to the latest firmware and uncheck the box to save settings and update to the latest cgminer (4.6).

[bspurloc]

testing cgminer 4.6 again on a single miner now that the DDOS has let up...

It is sitting at 500+ now. I suppose that DDOS that was going on effected my speeds yesterday and or one of those odd blocks that 'seems' harder to work on...

5 hours in... hashing is slowly dropping. at 491gh/s now. 495 is the the set average for old cgminer.
yall sure I dont need to install the newest firmware?

ok 3 miners on 4.6 for over 1 day, all are mining 4gh/s less not faster just one of those things where excitement is skewing actual facts.
the cpu's are definitely less load.
i'll most likely go back to the older cgminer because the risks of hijacked mining arent worth the gh/s loss and the cpu load has no bearing on heat and power use

[pekatete]

testing cgminer 4.6 again on a single miner now that the DDOS has let up...

It is sitting at 500+ now. I suppose that DDOS that was going on effected my speeds yesterday and or one of those odd blocks that 'seems' harder to work on...

5 hours in... hashing is slowly dropping. at 491gh/s now. 495 is the the set average for old cgminer.
yall sure I dont need to install the newest firmware?

ok 3 miners on 4.6 for over 1 day, all are mining 4gh/s less not faster just one of those things where excitement is skewing actual facts.
the cpu's are definitely less load.
i'll most likely go back to the older cgminer because the risks of hijacked mining arent worth the gh/s loss and the cpu load has no bearing on heat and power use

I have bitten the bullet and reverted back to the stock cgminer too! I know I will be missing the security updates and a responsive GUI but the drop in hash-rate felt a bit hard to swallow (see my updated results in the OP here: https://bitcointalk.org/index.php?topic=750220.0)

[X3rxis]

Hello guys,
where re the settings to control the fan speed?
is here a starter guide/thread/how to  anywhere ?
i updated the firmware already.
Also i 'll install a watercooling system.

[Moria843]

You are welcome.
If you can run 3 OC'ed S1's on that PSU, then by all and any means, it will run 3 S3's without ceremony.
And no, you do not need 4 connections for S3's (OC'ed or otherwise), 2 are perfectly OK so long as they carry the wattage required by your set frequency (which they can as ably demonstrated in the linked thread).

I agree the extra cables for overclocking doesn't make sense as long as your cables can handle. I ran 2 OC'd S1s per RM850 with wattmeter showing 844 watts from the wall with 1 cable to each S1 (each cable has 2 connectors). Did for several months with no overheating of cables or any other problem. Plan on running 2 S3s on the same and wondered why Bitmain would say you need 2 cables (or 4 connectors for each) if you OC'd. I realize that maxing out the 850 causes a 2% loss of efficiency vs. loading them at 50% but I'm not concerned about that.

[ruslan4040]

I have bitten the bullet and reverted back to the stock cgminer too! I know I will be missing the security updates and a responsive GUI but the drop in hash-rate felt a bit hard to swallow (see my updated results in the OP here: https://bitcointalk.org/index.php?topic=750220.0)

How back to stock cgminer?

[Bitkoinzz]

JUST AN FYI.. for all who are waiting to get S3 upgrade kits for your S1's.....

I underclocked my S1's to 250 and they are running at about 125gh. I am running 2 s1's at this speed on a Corsair cx500 using adaptor cables (4 pin MOLEX to 6 pin PCE) and the cables are not hot. The power efficiency should be way better.
Also , the S1's will not run at 200mhz or 193mhz. They connect to the pool but will not hash.
Edit. I use Corsair cx500's on all S3's too. They never burn cables and they only shut down if they get real hot from room temp.

[MissouriMiner]

I have bitten the bullet and reverted back to the stock cgminer too! I know I will be missing the security updates and a responsive GUI but the drop in hash-rate felt a bit hard to swallow (see my updated results in the OP here: https://bitcointalk.org/index.php?topic=750220.0)

How back to stock cgminer?

You can download the firmware (original code) from Bitmain's site.  Uncheck the "keep settings" box to reset to factory defaults when applying the firmware. 
https://bitmaintech.com/support.htm 

[kabopar]

JUST AN FYI.. for all who are waiting to get S3 upgrade kits for your S1's.....

I underclocked my S1's to 250 and they are running at about 125gh. I am running 2 s1's at this speed on a Corsair cx500 using adaptor cables (4 pin MOLEX to 6 pin PCE) and the cables are not hot. The power efficiency should be way better.
Also , the S1's will not run at 200mhz or 193mhz. They connect to the pool but will not hash.
Edit. I use Corsair cx500's on all S3's too. They never burn cables and they only shut down if they get real hot from room temp.

Check the undervolt thread for S1 at https://bitcointalk.org/index.php?topic=526060.0.  To improve the efficiency of the S1 you'll need to undervolt it as well as underclocking.  You'll gain the efficiency, but at the expense of hash rate.  The S1 to S3+ upgrade gives you both an efficiency improvement as well as more than double the hash rate (but the value for money is debatable).

Cheers

[xstr8guy]

Thank you!
one quetion: how speed better to find blocks?

Oh c'mon! Google Translate works better than that.   

Please try again because no on can answer a question that doesn't make any sense.

[Stratobitz]

Besides security, what performance or efficiency gains will I get from the cgminer update on my S3+ B8?  and Do I even need to update?

Also because I have the overclocked from the factory S3+ B8 do I need to plug in all 4 PCIe cables or am I OK still only plugging in two?  I plan on putting 3 S3s into 1 1200 watt PSU (Corsair AX1200i)

Thanks in Advance for your response!!

1. cgminer 4.6 has bugfixes for some security holes, however, in terms of performance gains, the jury is still out (see update to OP here: https://bitcointalk.org/index.php?topic=750220.new#new, suffice to say it will reduce the load on your controller.
2. Running 3 S3 units at stock on a 1200 watt PSU will push it to the max. I personally would run only 2 on that.

Thanks.  Appreciate the advice.  Very comprehensive information!!

Since my 1200 watt PSU was able to easily handle 3 S1 Antminers overclocked to 200GH Im confident that it can handle 3 S3+ Antminers, that is unless 4 PCIe Connectors are required per miner.  Ill test when I get the units and report back.

answer is no on a 1200w axi plat corsair, the psu sense an overload (most likely & will power off itself with a red light) even with all 12 pcie's plugged into all 3 s3's. that's what i experienced as it may be different for you.

yes, it is pushing the psu to it's limits. i would rather power 2 with 4 pcies with a mild overclock. * try using psu on a computer & run corsair link & untick the OCP*

keep an eye out as it does heat up very near to the connectors & i find that corsair's pcie connectors melts easily from experience.

i tried powering 1 s3 with 2 different 1200w axi corsairs & it is working fine. (have few different psu brands & had spares so i'm powering them in various configs)

I'm running a number of groups of 3 S3 Batch 7 Units off of 1 Corsair 1200axi.  Been running for weeks without a single hiccup. 4 PCI Cables on each unit.

All units clocked to 237.5

Strato

[Stratobitz]

Am I being skimmed?!

I logged into one of my S3 units today, and checked under RealTime Graphs -> Connections.

There's a bunch of really strange domains:ports that seem to come and go, only sending/receiving 1 or 2 packets.

It says the source is the miner IP (static) but then all random 5 digit ports.  The destination for these weird pop up connections are:

cheezum.mattnordoff.net:123
Ntp2.h.vporn.com:123
Others...

Of course these are listed with my pool connections as well.

Is this hacking/skimming taking place?

I still have this miner using the default password root for the miner, is it important to change the passwords?

Or is this because I'm in the original cgminer software that came with Batch 7.

Or is this normal.

Many thanks!

Strato

Googling "cheezum.mattnordoff.net:123" and "Ntp2.h.vporn.com:123" indicates that they're NTP servers.  Likely these are just NTP servers that are in the NTP pool you're hitting.  To be safe though, I would update to the latest firmware and uncheck the box to save settings and update to the latest cgminer (4.6).

Ok thank you I appreciate you taking a look at this!

Strato

[Stratobitz]

Anyone think it would be possible to run (4) S3+ Units off a single EVGA 1300 G2... If perhaps I underclocked them a bit?

Wondering if the loss in hash would actually give better ROI using less PSUs.

Strato

[bspurloc]

testing cgminer 4.6 again on a single miner now that the DDOS has let up...

It is sitting at 500+ now. I suppose that DDOS that was going on effected my speeds yesterday and or one of those odd blocks that 'seems' harder to work on...

5 hours in... hashing is slowly dropping. at 491gh/s now. 495 is the the set average for old cgminer.
yall sure I dont need to install the newest firmware?

ok 3 miners on 4.6 for over 1 day, all are mining 4gh/s less not faster just one of those things where excitement is skewing actual facts.
the cpu's are definitely less load.
i'll most likely go back to the older cgminer because the risks of hijacked mining arent worth the gh/s loss and the cpu load has no bearing on heat and power use

I have bitten the bullet and reverted back to the stock cgminer too! I know I will be missing the security updates and a responsive GUI but the drop in hash-rate felt a bit hard to swallow (see my updated results in the OP here: https://bitcointalk.org/index.php?topic=750220.0)

after reverting back I am seeing the same hashing power...
So I am going to have to assume there is no difference in hashing and those who claimed there was are exaggerating.
 excitable blindness

[bspurloc]

I have bitten the bullet and reverted back to the stock cgminer too! I know I will be missing the security updates and a responsive GUI but the drop in hash-rate felt a bit hard to swallow (see my updated results in the OP here: https://bitcointalk.org/index.php?topic=750220.0)

How back to stock cgminer?

What did you do to update to 4.6? did u rename cgminer? did you copy it to a new directory?

if u deleted it, then here is no need to reinstall firmware, as holding the reset button will reinstall everything again. of course u would need to re setup your s3 again.

if u renamed it then simply
mv /usr/bin/cgminer  /usr/bin/cgminer.46
cp /usr/bin/whatyourenamedittoo   /usr/bin/cgminer

[Meech]

Anyone think it would be possible to run (4) S3+ Units off a single EVGA 1300 G2... If perhaps I underclocked them a bit?

Wondering if the loss in hash would actually give better ROI using less PSUs.

Strato

I wouldn't even try it.  Just spend $60 and find a psu on sale for the 4th one.  It's best not to push the psu's to their capacity.

[Stratobitz]

Anyone think it would be possible to run (4) S3+ Units off a single EVGA 1300 G2... If perhaps I underclocked them a bit?

Wondering if the loss in hash would actually give better ROI using less PSUs.

Strato

I wouldn't even try it.  Just spend $60 and find a psu on sale for the 4th one.  It's best not to push the psu's to their capacity.

I figured as much. Thanks!

Strato

[Count_Frackula]

Anyone think it would be possible to run (4) S3+ Units off a single EVGA 1300 G2... If perhaps I underclocked them a bit?

Wondering if the loss in hash would actually give better ROI using less PSUs.

Strato

I wouldn't even try it.  Just spend $60 and find a psu on sale for the 4th one.  It's best not to push the psu's to their capacity.

I figured as much. Thanks!

Strato

While I agree that it is best not not push a PSU to capacity, they DO have a 10-year warranty, and that means that EVGA will replace it when (not if) it blows for overuse.  Then again, you'd have the downtime of replacing it, and you'd be losing some money on the overclock too, so it would probably only be worth it if you're nearing the end of that 10-year warranty and want to make it blow on purpose.

[cloh76]

Besides security, what performance or efficiency gains will I get from the cgminer update on my S3+ B8?  and Do I even need to update?

Also because I have the overclocked from the factory S3+ B8 do I need to plug in all 4 PCIe cables or am I OK still only plugging in two?  I plan on putting 3 S3s into 1 1200 watt PSU (Corsair AX1200i)

Thanks in Advance for your response!!

1. cgminer 4.6 has bugfixes for some security holes, however, in terms of performance gains, the jury is still out (see update to OP here: https://bitcointalk.org/index.php?topic=750220.new#new, suffice to say it will reduce the load on your controller.
2. Running 3 S3 units at stock on a 1200 watt PSU will push it to the max. I personally would run only 2 on that.

Thanks.  Appreciate the advice.  Very comprehensive information!!

Since my 1200 watt PSU was able to easily handle 3 S1 Antminers overclocked to 200GH Im confident that it can handle 3 S3+ Antminers, that is unless 4 PCIe Connectors are required per miner.  Ill test when I get the units and report back.

answer is no on a 1200w axi plat corsair, the psu sense an overload (most likely & will power off itself with a red light) even with all 12 pcie's plugged into all 3 s3's. that's what i experienced as it may be different for you.

yes, it is pushing the psu to it's limits. i would rather power 2 with 4 pcies with a mild overclock. * try using psu on a computer & run corsair link & untick the OCP*

keep an eye out as it does heat up very near to the connectors & i find that corsair's pcie connectors melts easily from experience.

i tried powering 1 s3 with 2 different 1200w axi corsairs & it is working fine. (have few different psu brands & had spares so i'm powering them in various configs)

Update - I am currently running my 3 S3+ B8s on my Corsair AX1200i.  They have been working for the entire day with no issues just as my previous 3 S1s were for months.  I only experienced the shutdown and red light when I initially setup my 3 S1s - I found that this only happened when I used both connectors on a single PCI-e connector.  If I use 1 cable per connector then no issues and it works fine -  which is currently how it's setup.

I also read that this Corsair AX1200i 80 Platinum is very versatile and can handle well above the 1200 watts, which is one of the reasons I purchased this particular PSU aside from it being completely silent.