Question Why does my PC keep powering off ?

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Jul 5, 2023
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So up until yesterday I was able to game on my pc with ultra game settings. No heat or lag issues with all games. Then it did some funny business with the picture on screen, and powered off. Ran zcpu to see if I could understand what's going on, but I'm not smart with this stuff so no clue. Here is a video of zcpu running while playing a game. I have tried 3 different games now, and the problem persists. How do I fix this, and why is it starting now after a year of use problem free?

Specs are:
biostar a320mh motherboard
amd athlon 3000g 4.5ghz CPU
asus gtx1650 4gb gpu
kingston fury beast 16g ddr4
evga 600 psu

Video of z-cpu running.