Other Not so Random Shut off/Crash

[jodah175]

So, built my gf's rig a little less than a year ago. (7/11 to be exact) It's been running great until the last few months. First off the specs:

AMD Athlon II X4 640 Propus, 3ghz Quad Core, 95w
Biostar A880G+ Mobo
XFX HD6850 1gb
Corsair XMS 4gb DDR3 1333 (2x2gb)
Windows 7 Home Premium 64bit
500gb WD Hdd main, 120gb Maxtor Backup


The problem is the computer crashes and shuts off while playing anything such as Mafia 2, Left for Dead, etc. So, nothing crazy intense. I'm thinking it may be a psu issue, or an overheating issue. Not entirely sure. No BSOD, nada, just shuts off and won't kick on until the power button is pushed again.

Any thoughts and ideas would be appreciated. Thanks in advance.

[Margon]

sounds like psu, have you got another to test with?

[jodah175]

Sure if I gut my pc. >_< lol. I'm thinking it may be PSU. Not sure. gonna have to yoink mine I suppose. which will be a major pita because I've got the wiring all tucked away nice nice in my case.