Computer shutting down

I have a problem when I'm using Directx12, I play 2 or 3 maps at most and the computer simply turns off, when I changed it to Vulkan, the problem doesn't occur, but the game's performance drops a lot, I suffer from a drop in FPS.

PC Spec :
AMD Ryzen 7 5700x3d
64 GB RAM
GPU : RX 7800 XT
SSD : M.2 2TB
WIN 11 VERSION 24H2