Ni de lejos todas las placas implementan dualbios, Gigabyte, lo hace pero no muchas más, y de hecho esta placa no lo hace. Lo mejor es que intentes la solución que da MSI en sus páginas:
BIOS flash failed during BIOS update
Try BIOS recovery for AMI or Award BIOS
AMI BIOS recovery procedure
• Rename the desired AMI BIOS file to AMIBOOT.ROM and save it on a floppy disk. e.g. Rename A6712VMS.190 to AMIBOOT.ROM
• Insert this floppy disk in the floppy drive. Turn On the system and press and hold Ctrl-Home to force update. It will read the AMIBOOT.ROM file and recover the BIOS from the A drive.
• When 4 beeps are heard you may remove the floppy disk and restart the computer.
Award BIOS recovery procedure
• Make a bootable floppy disk
• Copy the Award flash utility files & bios file to the bootable floppy diskette
• Open Notepad and put the following command line e.g. awdfl826B w6777NMS.140 than save to the floppy drive and name as Autoexec.bat
• Restart system with the floppy diskette that contains the Award utility & bios file (it will take less than 2 minutes before screen comes out)
Si necesitas traducción me lo dices pero es bastante sencillo