Originally Posted by zeroalliance
i just ordered a new psu for $100,its 900W with plenty of cables integrated, including 4 cables(6pin are 2 and 2 are 6+2 with crossfire and SLi ready.After that, ill go and buy better cooling.My psu(800),ill file complaint pretty soon.Thanks for the support but i was thinking of accelerator dual fan i think its called for cooling(air) and a second 120mm fan so it blows from front to back.Keep posting.Just love this site.I checked my psu info,and numbering on voltages isnt real good for crossfire.Ill update that tomorrow with details.
Military Veteran so i can afford anything i want,but that psu i have was before being in service.
Whilst the impatient wait for PSU arrival begins, yank out a card & test briefly for stability. Restart & repeat with it's brother. This'll fast narrow out card failure, at least if you can load a game/bench without identical electrical fault.
If it's any consolation, I had a PSU rated for 1200 watts demonstrating the exact same conundrum in dual card operation. Despite my eventual recognition of the PSU & the manufacturer being equally composed of souring excrement, under the circumsances I was confident no such high-wattage device was likely to fail so readily. Quick lesson learned, & there's no two ways about it: lowering budget on the PSU is insipid, asinine, instantly regrettable & an eventual guarantee of absolute misery.
Oh, and if (as I'm confident) you are able to get both cards running independent of crossfire? Please, don't maintain heavy loads on that load of junk. The key is to isolate specific cause; once that's done, grab your arse & get outta Dallas.