the only current thing you can do right now, is to either take it to a computer shop if they have an EEPROM reprogrammer on hand
or if you contact the mobo manufacturer and get ahold of a new BIOS, im not sure if they will hook you up with one that you need to solder but if they have socketed ones i dont see why they would not sell you one.
But I would just say screw it and get another motherboard that it currently compatible with your current setup.