Having a bit of trouble with the Draper home made super puter,suspect the motherboard or the bios ,what is involved in replacing the Bios battery?,can one simply howk out the old one and stick in a new without it completely porking the machine,I remember flashing the bios on a machine years ago and that process was accompanied by many dire warnings.
Not just guessing here,the machine hangs at a certain point at bootup if I poke the battery with my finger it complets the boot up quite happily,also it refuses to use a graphic card in the PCI Express slot insisting on only using the on board graphic chip.