Game Demo's Cause Computer Shutdown/Reboot

[DvBoard]

Ok i'm wondering if anyone know something in common between the BF2 demo and the NFS:MW Demo? I'll be in the middle of playing either and my computer will randomly (or seemingly randomly as it doens't do it everytime) just make the "click" noise it normally makes when shutting down and then it will reboot and be fine.

Any ideas? Where do i start? Heatsinks aren't even warm to the touch. Specs in Sig.

[wowza]

Ok i'm wondering if anyone know something in common between the BF2 demo and the NFS:MW Demo? I'll be in the middle of playing either and my computer will randomly (or seemingly randomly as it doens't do it everytime) just make the "click" noise it normally makes when shutting down and then it will reboot and be fine.

Any ideas? Where do i start? Heatsinks aren't even warm to the touch. Specs in Sig.
Humm, I know that sound :) Usually happens to me when I try to OC past my limits. For you, I would guess your system stability. Woah, motherboard? Ever thought about upgrading that? BF2 and NFS probably require a faster GPU than what you have, not to mention, your motherboard is forcing your GPU to run in 4x mode instead of 8x. Your in line for a new GPU and motherboard.

[redrumy3]

hmm need for speed demo works fine here, i dont have bf2 demo cause i the game already but nfsmw demo works fine

[DvBoard]

Also does it on the NFS:Carbon Demo. I was able to beat the demo, but went to select a different car and bam, reboot.

edit: It just crashed on me and i got a "Out of Resoucres" Error. Any idea what this means?