if the board has an isa slot plug a isa video card in, if it only has pci then use a pci video card, boot the system, do you see anything on the screen or does the floppy drive read. if yes then that means the motherboard has bootblock. put the bios file you want to flash on the floppy and put it in the drive and there ya go, fixed motherboard. odds are you fucked it over pretty good and you should just rma it.