Medion ERAZER Hunter X20 randomly reboots

[Bigguybingus]

Hello I've had a problem with my Medion ERAZER Hunter X20 where it randomly reboots when I'm playing games.I've had this issue for over a year now and I have been trying everything to fix it!

I tried to update BIOS but I can't.

Hardware

Intel® Core™ i7-12700K

NVIDIA® GeForce RTX™ 3080

1 TB SSD

32 GB Ram

I've Seen alot of people with the same Issue and they say that @Andi  is helping them. I really would appreciate any help!