CPU, mind of it's own?

[Jonesiani]

Hi all.

I turn my PC on this morning only to find on the post screen that my Q6600, (which was clocked to 3GHZ) has gone back to stock speeds.

Iv'e nad no crashes while it was at 3GHZ, and it was stable. It's recieving good cooling by a Zalman CNPS9700-NT nVidia Tritium.

The only thing i did yesterday was install Crysis.
I have a Gigabyte mobo, and 4gb 6400C4 Geil memory, windows xp (3.25gb effective)

What could have caused this?
Any ideas?

 

[Jonesiani]

When it was overclocked, id turn the pc on, it'd turn off for about 4 seconds, then turn back on again. Thats the only difference i noticed.