This has been happening for over a year now. What happens is I'll be playing a game and randomly my pc just shuts down and immediately restarts. Whenever this happens, my motherboard light turns orange and it goes to the "press delete of f2 to enter BIOS" screen and my computer starts up like nothing happened. I originally thought this was a power supply issue as I used to have a 550W psu with an RTX 2070 super, but now I upgraded to an 850W and the problem still happens. I'm starting to think it's my CPU overheating because whenever I run core temp after my computer starts up again, my CPU is around 85 degrees, which doesn't seem very good. I'm using the stock AMD Wraith Prism cooler that came with my Ryzen 7 3700x and it's always super loud even when I'm not doing anything. My CPU is at 75 just writing this and all I have running in the background is a Call of Duty loading screen. Is there anything I can do to stop this or do I need a new cooler? I have also tried messing with the CPU fan modes in the BIOS and nothing works.