Hi zwolfy,
I have exactly same problem like yours. My computer does not even start BIOS. I opened the cover and changed a battery on the motherboard hoping that it could resolve the problem, but the problem isn't solved. When I hit F10 or ESC after power on, the screen shows "Loading Setup..." or "Entering Setup...". But after that change, nothing happens. I am not sure whether USB keyboard can make difference. I am really frustrated... Any help or advice?