OneYouHate

New Costume is Hot AF! When the Car is built right!

that's why it sounds like Data Execution Protection kicking in, something is throwing a flag making PCs dump RAM and restart. regardless if it is malicious or not. I got locked from a hard drive once due to DEP, after that it can stay disabled. Should be a debug file you can go back and look at, that will show which driver/process made it kick in should that be the case.

Tera is free dx9 will create an overheat issue just turn everything up, Archeage u can try it it runs dx9 and dx11 as a way to see if it is your GPU/CPU failing or creating a thermal shut down due to a heavy workload, Running a benchmark like Furmark or something similar with heat monitor apps like MSI afterburner open at same time will do it w/o you downloading 30 gigs of games. PSU are built to be disposable, short lifetime of 3-4 years. Hopefully it was nothing more than a corrupted file causing DEP( Something you could disable if your playing games) to do a restart.