11-08-2015, 08:27 PM
It's certainly a solid all-around platform, but it may be more than you need depending on your goals. Are you just looking to do GPU hashcat (oclhashcat), or other things as well?
oclhashcat jobs don't need a lot of PCI-E bandwidth, so you can get away with x1 slots. But if you want to do John the Ripper, at least x4 slots are needed. I went cheaper on the board and CPU, and only four of my slots are x4 or higher, so when I run JtR jobs, two of my GPUs are starved for PCI-E bandwidth - but all six cards run flat out on oclHashcat.
I think my 970 power numbers are solid. My system idles at 105W, pulls 120W with all GPU fans forced 50%, pulls 315W with a paused oclhashcat job, and jumps to ~1050W with an active oclhashcat job on all six GPUs. So worst case, 1050W - 105W = 945W, and 945W / 6 cards = 157.5W per card.
https://roycebits.blogspot.com/2015/08/n...d-air.html
oclhashcat jobs don't need a lot of PCI-E bandwidth, so you can get away with x1 slots. But if you want to do John the Ripper, at least x4 slots are needed. I went cheaper on the board and CPU, and only four of my slots are x4 or higher, so when I run JtR jobs, two of my GPUs are starved for PCI-E bandwidth - but all six cards run flat out on oclHashcat.
I think my 970 power numbers are solid. My system idles at 105W, pulls 120W with all GPU fans forced 50%, pulls 315W with a paused oclhashcat job, and jumps to ~1050W with an active oclhashcat job on all six GPUs. So worst case, 1050W - 105W = 945W, and 945W / 6 cards = 157.5W per card.
https://roycebits.blogspot.com/2015/08/n...d-air.html
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