Hello. I built a desktop computer two years ago but over the past couple months the computer is completely crashing when under "stress". I put it in quotes because I have only been playing Dota 2 and Starcraft II at 1650x1080. Both games run great (well above 30 FPS on just about all max settings), but occasionally the computer has been crashing. There's never a crash to deskptop, a BSOD, or any error message. The computer just completely shuts down on the spot and my monitor goes to a no input screen. I am worried I did something wrong while building but it was fine until recently and now it happens any time I try to run any game. Browsing the web, email, Word, etc are always fine. When the computer crashes there's no slowdown or any warning before it happens.
So that's why background. I have attached the specs of the computer here from Speccy.
And here is the output from analyzing in WhoCrashed. Notice how none of the gaming related crashes appear. I had one this morning (12/9/16) and there is no log about it.
When I first built the computer I had a faulty RAM stick I was getting BSOD about and had it replaced by Crucial. Could this be overheating or some kind of cable connection error? I just am not sure what could be causing it. Thanks for any advice in advance,