ok, so heres the deal.
last night i was playing Borderlands for about 2 hours, everything was working as usuall. then out of no were, my PC shut off/restarted, black screen came up, and my GPU fan was at 100%, CTL ALT DLT did nothing, so i restarted, and i tried to boot into normal windows then it said my OC wasnt stable at boot when i was at stock clocks, so i checked to make sure my plugs were in all the way, and i guess my 24pin was a bit lose, so i pushed it in as far as possible, and booted agian, this time to "OC issue",though now it freezes every time when i get to the "welcome" screen. it just sits there with the circular curser moving, thats it.
though it boots to safe mode, everything works as it should in safe mode with networking.
i tried a system restore, still froze when booting to normal mode.
Everything looks fine in BIOS and when i get to the POST screen.
I even tried booting using my HD3200 onboard graphics chip. nothing.
I know its not a heat issue.
Thought about doing a full system reformat with my windows 7 RC disc, though...i cant find the disc right now or a RC key. Anyone got an RC key i could use? PM me it if you do... (it is legal to share RC keys i think because it is free in the first place...)
IDEAS are greatly appreciated, help ideas get rep for sure.
EDIT: system specs
Phenom X4 940 3.0Ghz
OCZ Gold 1066 DDR2
550W Rosewill PSU