10-07-2018, 03:23 PM
Hello world.
I recently built an 8 gpu hashing rig (7x gtx 1070 and 1 gtx 1080), on an Octominer motherboard. It has only 8gb of ram and 1.6gh intel mobil cpu. Should be fine for hashing..
Having a closest full of power supplies ranging from 750w - 1400w I was fairly certain i could do this with one psu. I didn't go with the 1400w only because it is a server psu that is super loud. Instead i went with a 1200w thermaltake that is super quiet.
My initial test on wpa hashes just running a wordlist with no rules, i was only drawing about 750 watts, so pretty good, but when i applied a rule set, I saw it jump up to 1200watts draw from the wall. (i have a watt meter between the psu and wall outlet)
I was able to put power limits on my Nvidia cards to a max 125 watts with little to no performance difference (meaning it took about the same amount of time to exhaust the list) and this brought my power consumption down to between 1000 and 900 watts.
My question is what would be ideal as far as the limits pf the psu and my total draw? Is it safe to run the psu at 1200 watts draw? What is the safe percentage of total capability to actual use of the PSU in question? How much of an effect does power draw have on performance?
I recently built an 8 gpu hashing rig (7x gtx 1070 and 1 gtx 1080), on an Octominer motherboard. It has only 8gb of ram and 1.6gh intel mobil cpu. Should be fine for hashing..
Having a closest full of power supplies ranging from 750w - 1400w I was fairly certain i could do this with one psu. I didn't go with the 1400w only because it is a server psu that is super loud. Instead i went with a 1200w thermaltake that is super quiet.
My initial test on wpa hashes just running a wordlist with no rules, i was only drawing about 750 watts, so pretty good, but when i applied a rule set, I saw it jump up to 1200watts draw from the wall. (i have a watt meter between the psu and wall outlet)
I was able to put power limits on my Nvidia cards to a max 125 watts with little to no performance difference (meaning it took about the same amount of time to exhaust the list) and this brought my power consumption down to between 1000 and 900 watts.
My question is what would be ideal as far as the limits pf the psu and my total draw? Is it safe to run the psu at 1200 watts draw? What is the safe percentage of total capability to actual use of the PSU in question? How much of an effect does power draw have on performance?