i accessed the bios, but i dont know how to set it at 4x mode. i will report the dmp thing in a while, just so you know

what type of bios do you have, amibios? award bios? what? universally, you have to go to chipset/agp/ and turn 8x to 4x and fast write off.

i have Pheonix award bios, but i cant set it to 4x when i accsess the bios, theres no option

are you familiar with smartgart in control panel? try setting it to 4x over there.

No, I am not familar with smart gart.