Hi, i've been building my dad a computer and it appears that when I turn the computer on, the keyboard doesn't work, i've tried lots of different keyboards and it doesn't work and it being an old motherboard, im thinking a BIOS flash is in order, however, how am I supposed to flash the BIOS if I dont have any Skt 754 processors?

please help

(sorry if this is the wrong thread, but its so damn urgent)