Yo, Built a computer for my friend last night, as his old one exploderated. Anyway, we used the parts listed below, and whenever we cold-boot (from power off) it boots up fine, but if we restart/reboot (using software - i.e. windows reboot or save-settings in bios) it won't re-start - it just sits there with all the fans going at full pelt. Nothing changed in the bios, just standard settings. I did notice that the CPU was only running at 1.12~ volts, but as we hadnt changed anything, I presumed it to be correct. It's one of the 45nm jobbies, which I've never had before. Any ideas? Spec: XFX 750i mobo Core 2 Quad Q8200 2.33GHz 2gb Ballistix ram (also tried 2gb Corsair XMS) Seasonic 600w PSU nVidia 7950 GX2 Graphics card No sound card - onboard. Cheers in advance!