gtj, question:

for a few months, I was stable at 3.4Ghz with the CPU at 1.375V ,FSB and MCH voltage at 1.4 respectively 1.6. Now, I have just ran Orthos blend, and after an hour , it crashes. I went up all the way to 1.45V for the CPU and after less than 2hrs, it crashed again.

Is it possible that over time the CPU will need more power? I mean, it was stable before and now all of a sudden is not.

I have the E6600, 2GHZ G-Skills, 7600GT, 1 Sata HD. My power supply is a Seasonic S12 420W. I hope that is powerful enough.

Any ideas ?