So basically I have ran to this issue. When I'm playing some high end games (Shadow of Mordor for example right now) my PC tends to shut down. Restart, no blue screen no nothing, just a plain old restart. So I am thinking, is this because of temperature or could there be any other issue?
I'm using GIGABYTE 780 Ti GHz edition with 450W fans. At first I thought this would be because my PSU can't handle this monstrosity as it was only 650W but I swapped it for a 850 Corsair and the thing is still happening.
Would be glad if you could recommend something. Or maybe tell me if it is not some other part of PC, like a CPU or something.