Dangel, thanks, I'll give that a try. It hadn't occured to me to try that actually but still, I don't really hold a great deal of hope on this working.
Well you never know - something as simple as a broken switch would actually be rather nice! It's only a momentary switch btw - so the contact is broken once you release the button.
Crosshair VIII Hero (WIFI), 3900x, 32GB DDR4, Many SSDs, EVGA FTW3 3090, Ethoo 719