Computer Shut Off (NOT OVERHEAT)

[Chillpants]

Looked around. everyone says its overheat. I checked with multiple virtual and physical means, its not overheating. Only seems to die when trying to open higher quality games. though it's getting worse. I cant even play stuff like Gmod anymore. If it's not 2d it kills me. basically.

 

[Mankar Kameran]

If it's not overheating then you might have to replace the psu.

 

[InvalidError]

The main suspect for random shutdowns while under load getting progressively worse over time is the power supply. What are its brand, model and age?

If you want to make your own idea of how likely the PSU is to be a problem, look at the tier list below:
http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

If your PSU is in tier five, replace it ASAP.

 

[Chillpants]

I'm using the thermaltake tr2 (600w), not really sure where that would fall. though it's probably kinda old to still be in use.

 

[Mankar Kameran]

No good reviews. It falls in the replace immediately category, and aparently it's one of the worst on the market.
Please replace your psu.
http://www.tomshardware.com/answers/id-1783159/thermaltake-tr2-600w-good.html