i have a ASUS P5VD2-MX SE mobo and a Core2Duo e6320 cpu but i can't figure out how to overclock on this mobo since there isn't any voltage changing and overclocking features in the bios

could u guys help me out? cuz i heard some review about how the mobo overclocked but i cant seem to find any post about it on google.

any1 nice enough to reply?