Computer shutting self off after 5-10 seconds

Meowcenary

Honorable
Nov 22, 2013
42
0
10,530
Hello, one of my friends I've been helping out has been having some issues with his computer.

After pressing the power button his fans will run, the computer light will turn on, hard drive will start up, etc. but the computer automatically shuts down after about 5 to 15 seconds.

Nothing comes up on the monitor, the monitor continually searches for a signal to no success.

His specs:

Windows 7 64 bit
6GB RAM (3 sticks of 2GB)
Intel i7 processor
Roughly 1 year old 850 power supply made by ASUS (may not be the correct brand)
GTX 660

So far we have tried removing the video card and removing all sticks of RAM and trying out one individual stick at a time, going through all 3 sticks . Problem still persisted.

He said his hard drive has been making some out of the ordinary clicking noises, however he cannot gain access to his BIOS which I've been told would still be accessible even if it were a hard drive issue, so I've been told it may not be hard drive related.

Might anyone have any fixes to try or may be able to diagnose the problem? Thank you in advance for your time and help!
 

M0j0jojo

Honorable
Has he tried, powering the system without the Hardrive just to get it to the bios. I have a feeling it could be the PSU since the system turns off. The PSU might not be outputting enough voltage for the computer to power on.
 

Meowcenary

Honorable
Nov 22, 2013
42
0
10,530


I'll have him try that tomorrow.

A handful of others have suggested the power supply too, he said he'll be picking up a new one soon to see if it fixes the problem