what exactly does this do?

i've read on a forum that it's important to replace the backup bios battery (the one near the clear_cmos jumpers) with an engergizer one. Something about the stock battery not putting out 3 volts exactly? i dont really know...can someone shed some light on this issue?

Never heard of this before.

But a new battery for the BIOS is a good idea.

the only reasons ive seen to replace the battery is if your clock dont keep time right and your bios settings dont apply when you change them. ALLEN

yip i agree if you have just got youre new board leave it on for a couple of days to charge it up