toledo_speedo

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Sep 24, 2008
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Am I out a $600 mobo or a $500 PSU:

I got my 2nd QX9775 in the mail yesterday and dropped it into my SkullTrail board with another Cooler Master V8 HSF. I hooked everything up and turned it on; fans spun, lights flickered and it died. I pulled the new HSF off and checked the metal backplate and the insulation was torn allowing 2 pins to ground. I insulated it, hooked it up with only one of my GPU's and it booted just fine. I put both my 4870x2's in CrossFire and it wouldn't start. I went back to one GPU and it would boot and die after a minute or two; then I would have to wait 4 or 5 minutes before it would start again. I am assuming my PSU (Turbo Cool 1000W) is shot or is not enough power for this system. It worked fine with my dual E5420's OC'd to 3.21GHz and the 2 4870x2's in CrossFire. Does it make sense that adding a 2nd QX9775 would require that much more power then 2 E5420s or did I puke my board by grounding it out?
 

Shnur

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Mar 9, 2009
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Do you have another PSU with which you can test it?
Does it work with 1 CPU? Or the old setup?
To me it looks more like a PSU problem, but it could also be a CPU.