(08-13-2014, 09:37 PM)Pyrex Wrote: I am just going to be powering the GPUS so a 1000w will do huh?
I would think so. Looking at Wikipedia a R9 290x can use up-to 290 watt, so 3 of them would be 870 watt leaving 130 watt headroom but this maybe cutting it a bit close if you intend to overclock them.