Nevermind I just re-read that. I see what you mean about the PSU not being enough.
We do have a Bitmain Apw PSU, but we're running 120V.
How would you recommend utilizing 1 Bitmain PSU and 2 850W PSUs to power this thing at 120v?
I'm also running 120; my set up is, currently, one APW-3 on two boards and the mains, one 650W PSU on the remaining board. Once the profit decreases significantly, I will undervolt and leave it on just the APW3, but the current hashrate is worth the electrical cost.
If you want it to run APW efficently get a 220v basically 2 live wires and a neutral with a 20amp breaker ideally you want to run the sucker on a single PSU and 220v is the way to go