07-05-2013, 11:38 PM
no, it's not a feature. you would need to hack up the power backplane. i have seen some people doing this, but i don't know how they did it. and even if you were successful in doing it, i'm not sure i'd trust it to handle 3kW+ of power.
yes, 3000W would be at 120V. at 240V it would be 3600W. but even then that's not enough, because 3600W @ 91% efficiency = 3276W
8x 7990 = 3000W
2x Xeon = 260W
6x Fans = 225W
so 3485W required for GPUs, CPUs, and case fans alone, and that's not counting the draw for the motherboard, memory, and hard disk(s), but the psus would only be able to reliably deliver 3276W
yes, 3000W would be at 120V. at 240V it would be 3600W. but even then that's not enough, because 3600W @ 91% efficiency = 3276W
8x 7990 = 3000W
2x Xeon = 260W
6x Fans = 225W
so 3485W required for GPUs, CPUs, and case fans alone, and that's not counting the draw for the motherboard, memory, and hard disk(s), but the psus would only be able to reliably deliver 3276W