Computer Shutting down when playing a game.

[formalclothes]

So I recently as of this week (12/28/17) built my first computer, But I am running into this issue that the computer cuts completely off when running a game. The computer has no issues while running idle doing random things like downloading a new game or surfing the internet, But when I go to load a game like Rocket League for instance after three minutes or so the computer will just "die". I have ran IPDT and my CPU is fine, Along with Afterburner and both my CPU and GPU temps are perfectly fine. I just installed a new power supply into the computer today, The problem was present before and is still there after. I have tried remove all but one ram and even cycled each of my four rams in to be the one ram and the problem happens on all of them.

-Specs-
Asus P8Z77-V LK
Intel i5-2500
GTX 560ti
4x 4GB Corsair DDR3
Corsair CX750(2017)

 

[GhislainG]

Used parts can sometimes have issues. Stress test the CPU using Prime95 Small FFTs. If it runs for 5 minutes or more without issues, then stress test the GPU.

 

[formalclothes]

Both passed, No issues after five minutes.

 

[formalclothes]

Used parts can sometimes have issues. Stress test the CPU using Prime95 Small FFTs. If it runs for 5 minutes or more without issues, then stress test the GPU.

Both Passed, I stressed them both for more than five minutes and no issues.

 

[GhislainG]

Stress both at the same time. It should either be the GPU or the motherboard.