Hi Karlan,
Looks like you have tried everything. If the problem persists with a USB Windows 10 PE or Linux Live and you have set the BIOS to “factory” and it is only 2 months old your retailer or MSI should replace it.
Have you checked for any short circuit with the case, bending of the motherboard, loose screw stuck underneath, incorrect cabling, etc.? That sort of thing.
Just reviewed your comments. Did you mean hard power off from the power supply or what?
A hard power off IS very BAD for electronics. Alway use “soft off” from OS then you may hard power off with switch on power supply. It may confuse BIOS’s as well.