This issue started about 10 months ago after I updated bios on my asus x570 plus. The system would basically shut down while using it with the rgb on mobo and my corsair memory staying on. Going in to event viewer the error code is 41-kernal power. Using a wall meter, it shows 122v and the most I've seen it draw is 550W out of the 650 my evga psu is rated for.
After installing a new processor, I can't get past a single benchmark run without a crash. To get it to run some games for more the 3 seconds, I've drop clocks to 3.2GHz, and vcore to 1.3 in bios, which increases stability. Lowering gpu power and clocks helps even more, but not enough to where it's fine. I'm personally thinking it's something with my board, or something in the psu thats just not giving enough power fast enough
Components that seem relevant
R7-3700x replaced by an r9-5950x
Asus tuf x570 plus(non wifi)
2x corsair vengeance pro rgb 32 GB 2x16
EVGA GeForce RTX 3070 FTW3 Ultra Gaming
EVGA SuperNOVA 650 Ga, 80 Plus Gold 650W