Hi guys - since the latest round of H-cards was shipped at .865v, rigs pull significantly higher wattage.  I'm seeing signs of connector burn & overloaded power supplies with some customers.  Please be safe - if you are overclocking or running a full rig, a 1200 watt supply is probably a better choice. 

Keep your rigs away from flammables - remember these are high-wattage devices!

I've been a little out of touch, sorry if this comes late - we don't have these problems at the data center.  We use a 10g high strand count copper wire between 12v supply and the metal lugs on the M-board.  The length of our power cables is only about 12 inches.

Best,
Dave

Hey guys, did you ever get a board which will not hash no matter what settings you try? I have obtained one such board. All it throws are loads of errors. I have tested the usual suspects voltage, etc.
It's a new PCIexpress style board, so I cannot bypass a chip.

I have tried disabling chips in software but the board will not hash. I tried it as a sole board connected to an Mboard.

Just to clarify after reading the fire hazard thread.  I am using 2 separate pci express power connectors to power a full rig right now.  Should I also power the 12V/GND power connectors on the other end of the M-board?  The rigs have been running stable for the past month.

V3M/V2.2H/Corsair 870 platinum, stock settings, about 650W at the wall

I assume it's ok to run power to both the pci express power connectors and the 12V/GND screw terminals?

  anyone mine ppc?  I am trying to mined ppc get alot of errors

speed:5272 noncerate[GH/s]:109.293 (1.138/chip) hashrate[GH/s]:29.563 good:7634 errors:3164 spi-errors:0 miso-errors:34 jobs:57 (record[GH/s]:0.000)
0:   878   17.194   4.947   1201   648   0   7
1:   878   18.898   4.957   1320   521   0   11
2:   877   19.370   5.052   1353   502   0   5
3:   878   17.495   4.883   1222   530   0   5
4:   880   19.127   5.031   1336   476   0   3
5:   881   17.209   4.693   1202   487   0   3

work fined for btc.

I used ppc D7 pool and I thank you.  I am going to try it later on.

Just checked, i have -rt when mining to D7 pool. For me it works nicely, D7 shows the hash rate at 150-160 Gh/s (5 hboards, Bitfury management shows about 160-167).

I have stratum proxy set up to restart in 15 minute intervals, not sure if that has anything to do with this... no automatic restart for chainminer, even though i think it would be good to set that up too.

speed:4276 noncerate[GH/s]:162.393 (2.030/chip) hashrate[GH/s]:184.398 good:11343 errors:1148 spi-errors:0 miso-errors:0 jobs:291 (record[GH/s]:167.933)
0:   811   32.312   34.626   2257   109   0   0
4:   821   30.838   36.064   2154   321   0   0
5:   888   33.186   39.911   2318   414   0   0
8:   883   34.861   39.604   2435   208   0   0
C:   873   31.196   34.193   2179   96   0   0

Hmm, seems it might be good idea to do some finetuning again, more errors than last check a week back.

Can you tell me how you setup this automated switching?

Ciao

Enrico

Yeah, i found that software after i had written my own. It usually goes like this, if i get an idea about something that would be nice, someone has already thought about it and propably implemented it . Well it wasn't complete waste of time, learned Python3 doing it and it works. If only i had more time to implement some nice guis for monitoring miner speeds, current pools and editing configs...