Topic: ANTMINER S2 Discussion and Support Thread - page 148. (Read 355730 times)

classic symptom of an overtaxed psu.

can you disconnect 3 boards maybe 2 boards run the machine short on boards . then add back boards until you are short one board.  my guess is it will run nonstop with 2 boards off not one board off.

if it runs non stop on 8 boards pull the psu and put in a good 1200 or 1300 watt psu.


I have had these high power draw issues with all kinds of psu's running gpis back in the day.

Is there a replacement available for a burnt out or low light LCD screen on the batch 1 S2's?

I believe the ssh user:pass is root/admin

I think its the PSU, when removing all the boards and connections so only the PSU is connected the PSU won't power on either.. have to wait for at least 10 minutes to get it working again.
Damn I wished they kept with the platimax instead of the gold revision of enermax.

I have one antminer S2 acting up.. runs fine for like 45 minutes but then powers it self off and can't power it on again for at least 10 minutes.
Something maybe faulty with a capacitor? or perhaps the PSU thats not able to actually hold the amount of power draw from the antminer?
Any advice?

Thanks

If I ever order one these I will be requesting that the cards be shipped uninstalled and wrapped separately. I think for now I am going to stay with the S-1's until some these issues get ironed out. Those S-1 ants are really great units.

I've received three Gen3 miners as well today. No problems with board coming out of the PCI slots. Only had one with the disconnected network cable inside.

All are up and running at 1005Gh/s on average.

The three are pulling 14.9 amps at 208v.

Bitmain is certainly busy.... 3 generations in 1 month... now I know why my 1 S1 RMA is never completed... he has moved on!

I wonder if this would help the bad PSU that came with one of my units??

edgar, don't know if you tried this but check ALL cables. I did find the ethernet cable inside the box loose and unplugged from the internal ethernet port...I say that cause the LCD lit up and showed you the default IP, so it makes me wonder if that is your prob.....
also the Ribbon cable to the LCD was loose at first, and I would check where it connects to the BBB backplane too. Good luck, looks like the FREE help is here!!

+1

edgar, the KNC legacy lives on!

Any of you guys got around resolving the invalid nonce errors yet?:

 [2014-04-17 18:55:31] bitmain_parse_results chain(7) asic_num=64 asic_status=oooooooo oooooooo oooooooo oooooooo oooooooo oooooooo oooooooo oooooooo
 [2014-04-17 18:55:31] bitmain_parse_results chain( asic_num=64 asic_status=oooooooo oooooooo oooooooo oooooooo oooooooo oooooooo oooooooo oooooooo
 [2014-04-17 18:55:31] bitmain_parse_results chain(9) asic_num=64 asic_status=oooooooo oooooooo oooooooo oooooooo oooooooo oooooooo oooooooo oooooooo
 [2014-04-17 18:55:31] BTM0: invalid nonce - HW error
 [2014-04-17 18:55:31] BTM0: invalid nonce - HW error
 [2014-04-17 18:55:31] BTM0: invalid nonce - HW error
 [2014-04-17 18:55:31] BTM0: invalid nonce - HW error
 [2014-04-17 18:55:31] BTM0: invalid nonce - HW error
 [2014-04-17 18:55:31] BTM0: invalid nonce - HW error
 [2014-04-17 18:55:31] BTM0: invalid nonce - HW error
 [2014-04-17 18:55:31] BTM0: invalid nonce - HW error


Get this from time to time:

 (5s):1.008T (avg):1.000Th/s | A:936960  R:35328  HW:689  WU:13972.3/m
 ST: 809  SS: 0  NB: 13  LW: 1132337  GF: 0  RF: 0
 Connected to xxxxx diff 512 with stratum as user xxxx.worker2
 Block: 6c3f5ca1...  Diff:6.98G  Started: [18:48:52]  Best share: 0
--------------------------------------------------------------------------------
 [P]ool management ettings [D]isplay options [Q]uit
 BTM 0: 46/ 55C 2040R | 1.312T/1.000Th/s | A:936960 R:35328 HW:689 WU:13972.3/m
--------------------------------------------------------------------------------

Thanks

Jelin, you are brilliant, every time I see your posts you fair brighten up my day.  
sorry, had to be said.

Did you put that hole in the side for the PSU fan ? Or is that a late batch 2 case ? My B2 does not have that case..

Yes you think more watt per wall at gold psu s2 or not?

The platinum seemed to be only in Batch 1, as they couldn't get anough Gold to fill all the orders (hence some used gold supplies)

Is gold psu and not platinum

Hrm, got Rev 3 it seems:

I have a batch 2 and has been running for 14 hours however i havent had to reboot or turn it off yet, its been hashing fine without any out of the box problems other than some loose cards on arrival which i reseated prior to turning it on. I should say i replaced the standard PSU with a ax1200i immediately so i cant comment about the PSU issues either.

Temps are 50-52c on the hottest card (all the rest are 48-49c). Only thing i notice is a high discard rate of 856653 after 14 hours, 164 rejects. Will report back when i encounter my first reboot requirement.