COD MW2 Beta restarts my pc / reboots my computer

what title says. Im on win 10 with a 3080ti and 1000w psu.
All drivers up to date ( windows and nvidia)
Yesterday it kept crashing after every game. Today there was a small update for the game and now it not just crashed the game by reboots my pc when the game wants to go back to the lobby after the game has ended. No other issues whatsoever. Temps and all good. Only happens when game is done and wants to go back to the lobby. I already tried a few stuff that i have seen online (run as admin, fullscree, limit fps etc