PC automatic shutdown

[chickenwings14]

Just right now, every time I opened a game it will automatically shutdown like pubg, r6 but not on dota2. I already stressed test the gpu and cpu and it doesn't shut down even on their peak temps.

Core i7 7700 (stock cooler)
Gtx 970 a cheap zotac cooler
seasonic m12ii 620w modular
msi z1z0 pro carbon
8gb samsung ram

 

[hang-the-9]

I'd test the card in another system, same thing for the power supply, maybe test a known good quality power supply in your system.