Wierd Problem with 630i 7100

[xstatic2k6]

OK..

The mobo works fine, i think.
But until about 10 minutes ago only 1 of the 4 cores of my core2quad q6600 got picked up by the device manager, task manager etc in windows. Now there are 4 registered cores in device manager but still only 1 graph in task manager.

I was thinking about flashing the BIOS until i remembered that i had set the BIOS settings to fail-safe because when i had setup the system there was a lot of driver conflicts with a HDD i had moved over (fixed by formatting).
So i changed the BIOS settings to Optimized, booted up vista - which picked up 3 new cores, i reboot and still only 1 core recognized by most of windows.

so basically - WTF?
And if anyone kows what to do, PLEASE help.

Regards and thanks in advance

[werty316]

Clear the CMOS and set the BIOS to its "default" settings to see if that helps.

[xstatic2k6]

How do i go about clearing the CMOS memory?

(Edit: nevermind lol, will post results in this post when done

No luck with that =/ no changes)

Would formating and re-installing windows do anything by any chance?
Because it seems the cores are being picked up somewhere along the line in windows, but just not all the way.

[xfxsupport]

Check the BIOS settings as I have seen where the all but one of the CPU cores was disabled in BIOS.