nVidea card crashes while charging

I have an XPS 15 and while I play games my videocard crashes.

If its a full screen game my entire laptop freezes and if its windowed only the videocard reboots(game is crashed).

Now after a long search I found a post about a charging failure. And then I tried to play a game without the laptop charging. It no longer freezes then, but my battery empties quite fast.
So, thinking it was a fault or damage in my adapter, I bought a new one.
Sadly this didnt solve my issue. I am not a computerwizzkid, can anybody help me?

(My drivers are all updated)