Hey Dogie,
I have 3 of these cubes and two Corsair AX850 (/e7qEGt]http://[Suspicious link removed]/e7qEGt). Right now, 1 PS powers two cubes and the 2nd powers the other cube. If each cube only takes 200W, why can't I power all three cubes with 1 PS? I don't run overclocked. Is it somehow more efficient with my config vs running 3 cubes on one PS?  If not, how can I accomplish running all 3 on one PS?

If each cube needs 6x 12v and 6x GND, can I use a pinout diagram and make custom cables to provide this from the other, unused, slots on the PS?