Yes you may ask what am I doing with a AGP4 motherboard? Lightning blew two of my main MB's. So I am on my spare socket 370. And yes I unplugged the power and the phone line but forgot my broadband cable. ALOT of damage. Any way enough of the small talk. My question, will a AGP8 video card run in a AGP4 slot? I know the voltages are different 1.5v and 0.8v. I am concerned about damaging the graphics card at the higher voltage.