Crashing on loading screen to computer shutting off

Hi, after an hour to a few hours of playing poe, my game crashes on loading screen and it instantly turns my computer off. No blue screen of death, no game crashing to desktop, but my computer shuts off. Computer starts up normally after I turn it back, but I don't know if this can have negative long term effects on pc parts.

PC Specs: CPU:
AMD Ryzen 7 7800X3D 8-Core Processor 4.20 GHz
32.0 GB (31.2 GB usable)
4080 Super Nvidia
Windows 10 22H2

CPU and GPU temps hover around 52*C while gaming.

Things I have attempted doing, updating windows and nvidia drivers. Problem still persisted after doing this.

The game never crashed while mid-map, but always in loading screen of entering a map. The game never crashed while I was progressing through campaign.