My computer wont power on

[maidos]

Last night i noticed i got bllue BSOD 3 times in one day. Didnt think much of it so i just decided to sleep then. But now today when i start the computer it powered on, the fans were running and hdd running but then it shuts off again


sorry didnt remember the exact error i got

i tried resetting mobo to factory settings but to no avail. Tried unplugging the power cable for 20 minutes but it always happends the same thing. it only powers up for 3 seconds before it powers down again.

Im not sure which hardware compononent is at fault here

 

[maidos]

i have seasonic 600 watt, stock clocked i7 920, stock clocked gtx 570

ive used psu this one for 5 years now. But ive recently overclocked my cpu to 3.8ghz but i underclocked it again since i didnt need that high frequency

http://www.youtube.com/watch?v=F-A3z4yMiQI&feature=youtu.be

 

[Bubbaleone]

Seasonic's are really good PSUs, but five years is usually coming up on the average lifespan of even a good PSU in an enthusiasts computer. The symptom of briefly powering on and then shutting down is also typical of a dying/dead PSU. Testing with a known good PSU will instantly tell you if that's the problem.