shyon, if u're like me being a tech in a company, u'll be swamped with so many types of mobo's (not the futurama dude) & remembering which jumper is for what is almost impossible.
so deathatthedoor's battery method is some sort of a last resort when all else fails, at least for me. just that one must remember 2 check the processor voltage & multiplier for BIOS reconfiguration(only for mobo pentium mmx era & earlier).