Random Restarts

[Makia]

Hello All, I'm currently experiencing a WoW issue. Everyone time I play WoW my computer will randomly reboot. As if I pressed the restart button on my computer. Sometimes it will happen after 3 hours of playing or sometimes even after 7 or so. I've turned off the automatically reboot option to get a BSOD but I haven't seen one yet. Sometimes when it restarts it'll have trouble restarting too, like it restarts and then immeadiately turns back off and tries to boot back up, then turns off again etc..

I've done so far:
Updating Drivers
Rolled back Drivers
Updating Bios
Opening case and put a desk fan on it
Running WoW in opengl


Specs:

MSI P965 Neo mobo
Intel Pentium 4 3.4ghz
2gb ram
nvidia geforce 6800

Any help is greatly appreciated!

[Kalos]

Sounds like a BIOS override due to thermal issues. Doubly likely as that's a Pentium 4 CPU, perhaps the hottest and most inefficient processor to be developed.