At random times my computer will literally shut down. It doesn't blue screen or anything, just goes dark. Very similar to what it would be like if you unplugged it from the wall while it was still running. I'm wondering if this is the computer overheating, or if it is my power supply failing.
nVidia 250 GTS 1024 mb GPU
Intel Core 2 quad processor
Asus P5N-D Motherboard
320 gb Western Digital HDD
2x disk drives
Windows 7 Professional
I had a 680 watt Sunbeam psu. I don't remember the exact model number.
Anyway I ended up taking the advice of a friend of mine (computer engineer) which was to upgrade to a new power supply, which i would've had to do anyway if i wanted to upgrade anything else. I now have an Ultra X4 1050 watt modular power supply, and the computer hasn't had this issue.