My pc turns off all the time when I start bigger games like GTA v?

As stated in the title, my pc turns off and then on again when I start gta 5, for example, but that's not the case with minecraft and so only with Gta V, overwatch, Friday the 13th. I hope someone has the right answer thanks in advance.

System overload. Your CPU or GPU is just getting too warm

And how can i change that?

https://www.google.com/...CAw&uact=5

How does your configuration look like?

Graphics card, CPU, power supply unit, CPU cooler, case fan?

I'm guessing that the power supply is too weak or a temperature problem.

Thank you very much it really worked!

No problem. What exactly was the problem? CPU or GPU? & what did you do about it? You can write in here again for others who have the same problem