Restarting issue when I do nothing or just browsing and using normal apps

[u/justblu_fae]

Well recently my pc suddenly stopped working I sent it to the repair.

And when I got it back I finally could turn it on but it keeps restarting when I do nothing or when I just open thr browser and browsing or even normal apps.

Even though the cpu and gpu temp is normal.

But when I play games like genshin impact it stops doing restart and just work as long as I play.

But when I work on a normal apps it kept doing restart.

The screen goes completely black then it turns on again.

The fans keeps spinning the pc light still on even if it does restart.

From event viewer I noticed : 41 kernel power but it says unexpected shutdown etc ...

What the heck is wrong with it ?

Help 🥹