I am suspecting a bad power supply, along with a corrupt BIOS, corrupted by bad power. My current power supply is a cheap 500W job, that I have seen draw 800-900W from the wall. So, prime suspect. It is a 50$US PSU and has 5 years of heavy use on it. Since I need a new power supply for my next build anyway and a new BIOS chip is cheap as stale bread, I will be attempting a rescue by those means.