Just installed win7 64-bit now I cannot get past 3.6 GHz without crashing, was stable at 3.6 in vista. It stays stable at 3.5GHz in win7. It is not thermal as the temps stay at or around 40c idle 57c@100% load, no matter the clock speed, within reason of course. So whats holding me up? Its a X4 940 BE stock voltages 1.35v-1.38v. I do not mess with the voltages. I just want to clock it up on stock voltages not looking to get past 3.6GHz thats a plenty.