I've been running my e6550 @ 3.5 ghz ( 7 x 500 fsb, ram @ 2x mult = 1000 mhz) for two weeks now using SETI to keep it at 100%. temps at 59c on both cores. I recently had to restart, and during bios boot, it shut off, restarted on its own (as if a bios change was made) and booted up normally. Only change was I was back down to stock speed. Any ideas why its done that ? I've gone back in and set back to 500 FSB and can run stable, no issues on orthos 12 hr run, or any gaming.