|
Title: Advise PSU requirements for 2 x 13 GPU rigs Post by: umax on January 11, 2018, 09:58:59 PM Hi,
after 2 weeks reading & researching and finally able to source 26 GPUs (it was hard time here in EU), I have everything being shipped to me, I just need to order PSUs. My 2 13 GPUs rigs will be powered each by 4 PSUs. I want them to be stable with stock GPU voltages, so this is my starting point. Afterwards I will limit power and get into sweat spot for hash/power consumption. Rig 1 will consist of; 13 x EVGA GTX 1070Ti SC (single 8 pin power connector) Asrock H110 Pro BTC+ Intel i3 3.9GHz (7th gen - Kaby Lake) 8 GB DDR4 2133 ram 9 Delta 120 x 120 x 38mm fans Here I thought to power whole system with 4 x Corsair AX860 PSUs (3 PSUs powering 4 x 1070ti each, the 4th one would power 1 x 1070ti and the rest of the system (CPU, Mobo, Fans, Risers). Rig 2 will consist of; 13 x EVGA GTX 1080Ti SC (8 pin + 6 pin power connector) Asrock H110 Pro BTC+ Intel i3 3.9GHz (7th gen - Kaby Lake) 8 GB DDR4 2133 ram 9 Delta 120 x 120 x 38mm fans Here I thought to power whole system with 3 x Corsair AX1200i PSUs (3 PSUs powering 3 x 1080Ti each) and Corsair AX1500i to power 4 x 1080Ti and the rest of the system (CPU, Mobo, Fans, Risers). Can you please advise if my choices regarding power requirements are correct, or I have maybe over powered the rigs. What would be best suggestion for my situation? Title: Re: Advise PSU requirements for 2 x 13 GPU rigs Post by: spinx on January 11, 2018, 10:11:49 PM As the price of ATX PSU's has skyrocked, i would suggest using server psu with breakoutboard:
Buy a complete kit or build your own. https://www.parallelminer.com/product/build-your-delta-platinum-94-1400watt-200-240v-power-supply-kit-for-gpus-mining-zec-dash-eth/ or find a pus 40-60$ on ebay + breakout board 15-30 $ Title: Re: Advise PSU requirements for 2 x 13 GPU rigs Post by: umax on January 11, 2018, 10:24:41 PM As the price of ATX PSU's has skyrocked, i would suggest using server psu with breakoutboard: Buy a complete kit or build your own. https://www.parallelminer.com/product/build-your-delta-platinum-94-1400watt-200-240v-power-supply-kit-for-gpus-mining-zec-dash-eth/ or find a pus 40-60$ on ebay + breakout board 15-30 $ How many 1080Ti (default voltage) can I power with one 1400W server psu? And how many 1070Ti? Title: Re: Advise PSU requirements for 2 x 13 GPU rigs Post by: spinx on January 11, 2018, 10:34:32 PM As the price of ATX PSU's has skyrocked, i would suggest using server psu with breakoutboard: Buy a complete kit or build your own. https://www.parallelminer.com/product/build-your-delta-platinum-94-1400watt-200-240v-power-supply-kit-for-gpus-mining-zec-dash-eth/ or find a pus 40-60$ on ebay + breakout board 15-30 $ How many 1080Ti (default voltage) can I power with one 1400W server psu? And how many 1070Ti? Can run 4 x 1080 Ti per 1200W to be safe. 1080 Ti draw about 250-300 watts each depending on settings. So if you go with 6 x additional 1200W PSU, thats 7200W / 26 ~ 276W per card. To be safe, i say 1 x 750W for the system + 1 card and then another 3 x 1200W for the remaining 12 cards per rig. Then you have 300W per card easy. The HP 1200W models are about 60Euro/each. https://www.ebay.com/sch/i.html?_sop=15&_from=R40&_sacat=0&_nkw=HP%201200W&rt=nc&LH_PrefLoc=5&_trksid=p2045573.m1684 Price compare Standard ATX 6 x EVGA SuperNOVA G2 1600W (3 per system) ~ 2100 Euro (~350 each) = 2100 Euro total vs Build your own from server PSU 2 x EVGA SuperNOVA G2 750W (1 per system) ~ 200 Euro (~100 each) 6 x HP 1200W (3 per system) ~ 360Euro (~60 each) + 6 x breakout boards ~120 euro (~20 each) (even cheaper i bought from Aliexpress) + cables 100 euro (even cheaper i bought from Aliexpress) vs Buy complete custom server psu kits 6 x 'GOLD RATED 1200 WATT 110-240V POWER SUPPLY KIT FOR GPU’S MINING' (includes board & cables) ~ 600 Euro (~100 each) https://www.parallelminer.com/product/hp-gold-rated-1200-watt-110-240v-power-supply-kit-for-gpus-mining-zec-dash-eth/ |