I have a XFX 780i with a q6600. Its overclocked at 3.65, fsb @ 1825,456x8 vcore @ 1.3812. I ve been playing games and encoding with almost no problems for two weeks. I've had 1 hardlock and couple of blue screens. Blue screens imo because I o/c my memory to far OCZ SLI 800mhz, had it @1066 5-4-4-15 backed it off to 1024 no problems. I wanna prime test for at least 16hrs, but at about the third hour my temps start to rise and keep doing so till it hardlocks. It was hardlocked @ 82c, which I have to add 5c to match bios temp. I was ready to lose the chip just to see how far it would climb and see if it would go back down, but it hardlocks.My temps idle @ 42c(37c+5c). I have a tuniq tower , CM690 2 exhaust fans 4 intakes and two open fan slots that were taken up by the heatsink. If anyone can help me out I would really appreciate it.