I bought a Celeron 366 for my Dad's PC about a year ago and it was pretested to work at 550 @ 2.0v (bought it from Minotaur). It was stable at 2.2v in a Abit BM6. In the past few months, the PC started to crash when just doing simple tasks like internet browsing. I thought it may be a software problem, but when I brought it back down to 366 it was stable. I tried 550 again at 2.3v (the highest the BM6 allows), but it still wasn't stable. I also tried reseating the HS and replacing the generic goop with Arctic Silver, but that didn't help either. The CPU temp never goes above around 40C (full load). Has this ever happenned to anyone, or is this normal?