Second time this happened... Started 10 days ago while i was doing nothing but typing a word document, then stopped. But last night as I was running a pcmark vantage test it crashed again and rebooted =(. I already tried disabling the auto reboot on crash thing and didn't work out. I also ran a memtest86+ and found no errors the first time.
How are your CPU and GPU temps? Also, if overclosking anything, revert to default levels and see what happens. Sounds like a possible heat/power issue (hardware) and not a Win 7 problem. The error is just Windows indicating that there is an issue.
Nope, no OC. Although I have XMP enabled for the ram, but I've had that on weeks before the problems started to occur. The thing crashed today again twice when I was running pcmark vantage... I doubt its heat because I used LinX and furmarks to stress both cpu and gpu and it didn't crash.