hard to say. I don't fully understand WHAT killed the cpu...voltage played a role, sure...but why for my cpu, and not others?

I'm hoping maybe one of my others will start to show signs of death, and then I can maybe pinpoint the problem, but i really think this is far out of my scope of know-how.

Extremecooling hasn't prevented death of some QX9650's...yet others ahve been given over 1.8v, without reported issues...