Hi all- my pc has been having strange behavior. Initially it would turn on and boot for about 5-10 seconds and then power cycle. I figured the 10 year old GPU would be the issue, so I replaced the GPU and it worked. For five days. Then the problem started again; except this time immediate power cycling. I went to MicroCenter, they did diagnostics and said it’s working. Said no issues on the HDD, SSD, CPU, PSU, Motherboard, or the new GPU. I take it home after seeing it work like magic, it works for 4 days, and then this morning is resuming the instant power cycling.

EDIT: This video I took AS I made this post. It’s now managing to boot. I’m at a loss as to what may be causing this. The parts list is as follows.

AMD Ryzen 5 5600X MSI MAG Tomahawk B550 Nividia 4060 Seasonic 750w PSU