So, I was running at 2.5GHz/~1.48v or so for the past 4 days. It seemed to run ok, and I ran SuperPi through 32M (million?) decimal places (yes, I started two separate exe files and set the affinity to separate cores) without any errors (never broke 44ºC). At 3 or 4 different times (all doing completely different things), the computer would shut off, completely without warning. It happened last night while I was watching a movie and (slowly, 56k) downloading a file. I reset the BIOS to factory, and I'm a little stumped to why this was happening. Has anyone else had this happen? I checked all voltages while I was in the BIOS from the PSU and they all were within .15v variance (.075v ripple?)