System shutting down

[nicros]

After many months of working just fine, my system has crapped out on me. I found it off one evening, odd because I hadn't shut it down.

On boot, managed to get into windows vista and about 10 seconds later the system just clicked off. No bsod, no warning, just off.

Booted again, and didnt even make it to vista before it powered off.

Tried one last time and tried to enter bios- soon as I saw the bios screen it powered off again.

Checked the CPU fan on my tuniq, seems to be working just fine. I will pop the ram out stick by stick, but what else could it be? The graphics card is pretty new, but nothing else is.

What other things can lead to this behavior?

Thanks!

 

[Jack64]

System specs?? PSU watts, new or old?? We might be able to help you if we knew more.

 

[nicros]

Sure!
E6600, overclocked to 3.4, Gigabyte DX4 mobo, 750W GameXStream PSU, 4G DDR2-800 Geil RAM (4x1G), EVGA 285 Graphics, Tuniq Tower CPU Cooler, Antec P180 case.

Whole system is less than 2 years old, mobo and 285 are newer. Just put the 285 in a few weeks ago, but for that whole time not a single problem.

Something just up and died, just not sure what yet.

 

[Jack64]

Well, it is most likely a psu problem, the reason I say this is it isn't givinf you any error screens at all, it's just powering off. Thats typical of a psu that is dying. Have you got another one to try? I'll bet that is it.