That's a curios one, Your card works in your friends PC fine but not in yours but his works in yours fine right. Are they both using the same power connectors, I know the 660 uses a lot more power than the 630 does, Just looked and the 630 doesnt need the power cables that the 660 does, My guess is it isn't getting enough power, Your Corsair PS should have plenty but need to confirm the 6 pin connector is giving it power, Maybe try using the adapters for the video card plugged into the 4 pin molex instead of the cord supplied for it on the PS, That would at least tell you if that plug is the issue or not. I SO hope you get this up and running after all the trouble it has given you,
Dauntae
Dauntae
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