My computer restarting randomly

[kojakfull]

My computer is randomly restarting and it's very annoying specially when i am working on something important. The restarting is very random. Sometimes it immediately occurs on the windows boot up logo then sometimes after an hour of browsing. It's very random.. It will immediately restart no like you manually click the reset button.

I already tried to change the harddrive and memory but still the same issue.
Here is my computer specs http://i.imgur.com/ECBeil.png

Any idea why is this happening?

Thanks in advanced.

Regards

PS. To the mods. Please move this thread to appropriate category if this doesnt belong here so i can get more answer to my problem..

 

[3tek]

Are you getting a Blue Screen of Death or is it just a random reboot? If it's just a random reboot I would test the Power Supply, Overheating (check heat on the heat sink, video card, motherboard, also you could check the capacitors on the motherboard to see if they are bubbling (they should be flat).

**EDIT** Just checked your specs, i've seen ALOT of HEC power supplies go out, I would check that first.