Wasn't sure whether to post this in software or hardware. I can play about 30 minutes worth of flash video before my rig dies, literally just powers down and reboots without warning. This is definitely related to flash since I ran prime95 and furmark over night, and was still running in the morning with good temps. I can play HTML5 video fine on YouTube, it's just flash that makes my rig die. I've done a fair bit of Googling and found threads where people are having similar problems, but I've found no resolution.