Warzone crashes (black screen + sometimes full shutdown)

https://reddit.com/link/1tvoyi8/video/dlkoqztqh25h1/player

In Call of Duty: Warzone my PC randomly crashes under load. Screen goes black, GPU fans hit 100%, sometimes it freezes, sometimes it fully shuts off like a power cut.

Temps are fine.

I reduced settings:

• 1800 MHz
• 950 mV
• -10% power limit
• 120 FPS cap

This helped a lot and I can play longer, but it still randomly crashes sometimes.

Specs:

• Ryzen 9 7900X
• RX 7900 XTX
• 32GB DDR5
• 850W GameMax PSU (GMXPRG)