PC shutdown after launch a game

[Paulo Eduardo]

A while ago, my computer started to shut down automatically when I was in the menu of some games, example: Dead By Daylight.
Can someone help me please?

(I attached an DXDIAG of my pc)

DxDiag.txt

[Syaoran]

It sounds like an overheating issue, have you played Dead by Daylight fine before without the PC shutting down?

Did you bought your PC or built it?

 

You can check your PC's temperature with HWinfo https://www.hwinfo.com/download/

Use 'sensors only' when you run HWinfo

[Paulo Eduardo]

I have this PC for two years, I've played Dead by Daylight several times, but from nowhere began to give this problem.
I bought the PC.

I don't think the problem is with overheating, because the temperature both from the CPU and the GPU are not too high, i have send 2 pictures from the temperatures.