Question PC turns on for a second then off again sometimes

Oct 10, 2022
My PC has been having an issue where it turns on for a second then off immediately. This started happening after my power cut out once. However the first time it happened, it waited an hour or so and it was able to boot up fully without any issues. I thought that was that until it started happening again and I'm currently stumped. Right now I do some weird routine where I unplug the PSU and let it set for however long and then plug it back in and it works again. But I want to diagnose the issue before it fully stops working. Any tips?
CPU: i5 Hexacore 9600 KF 3.7 GHz
GPU: EVGA RTX 2070 Super
RAM: TridentZ 16GB(8x2) DDR4 3000
Cooler: Corsair H115i RGB Platinum 140mm
PSU: Cooler Master MWE 550W 80PlusGold Modular power supply
SSD: WD Blue SATA SSD M.2 2280 1TB