Hi everyone!

I recently bought a X2 550BE (0925CPMW) that could be unlocked. Here's the problem: just before windows (win 7 ult. 64) logon screen the computer restarts or shows me a BSOD or just a blue screen error.

I've set the voltage to 1.45 (as the previous owner used) and NB voltage to 1.2 (def 1.0 @ 2000mhz). CPU was at def. clock.

Some people have told to "experiment" with the ACC (with the %) and change it for the specific core (for the core that failed). Well, I can't see which core crashed as I can't even log into windows.

My mobo is ASRock A780GHX/128M with bios 1.20 (also tried 1.50). Could it be a fault of my windows, as I should try to reinstall windows or just get a new mobo?