ok, i got a KT4V series motherboard , and in bios in agp setting, etc, it is set to auto, i want it set to 8x or 4x, as my graphics card needs it, i have ati 9700 pro, i have got performance problems in games , like lag in raven shield etc.

but i cant select it , and it is locked in some way, how do i unlocked it? so i can set it to 4x or 8x.

this must be the reason im lagging in games, as i have tryed everything else.