Hey guys, I want to have 2x sapphire dual-x 280x+powercolor 7970 for a mining rig but not sure how much wattage I need for a PSU. Do I need a minimum of 1000w? What is a good budget PSU that I can get. I have a i7 920 but it is not OC'd
If this is also your main PC/gaming system (not overclocked) then I'd recommend getting a 1000w power supply like the new EVGA supernova's with 10yr warranty.
If its a dedicated mining system that isn't going to be used for any other purpose, a good 850w power supply, like Corsair, should be fine. You should be able to undervolt your CPU + GPU's for less power consumption while mining.
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