A few comments / suggestions.
If your board has a PS/2 port, connect a keyboard to it.
When you attempted reset, did you have power to the board disconnected?
Have you tried to invoke boot from the back up BIOS?
Have you attempted to resynchonize the BIOS, using ALT+F10?
Pressing the <End> key during POST might allow you to enter Qflash. Pressing <F8> within BIOS can load Qflash