Just got my shipment of a MSI R6870 twin frozr II, power requirements are showing 500watt psu RECOMMENDED but i checked out some benchmark tests on this card and basically im just wondering can i use a 400watt psu to power this card? i have a new 1000w in transit via newegg but will my 400w psu run this card without and possible issues? By the way im getting a 1000w because i am getting a 2nd card for crossfireX
Will your PC boot up and perform basic tasks? Yes. Will your PC shut down when you start up Skyrim? Yes. Is it risky to use a PSU that is below the recommended rating. Indeed it is. Could it possibly blow the PSU/Mobo/GPU? Worst case.