| posts: 1,297 | Location: Iowa
it will only help if your running the car din 4x AGP. 8x AGP is 0.8v 4x aGP is 1.5v
if you up the voltage to 1.6 or 1.7 you MIGHT see an increase overclocking, but your not going to see an increase in performance unless you having performance issues., then its possible it might help the card out a little by giving more volts.
but if its already in 8x agp upping the voltage will do nothing.
if you switch to 4x your going to see a small performance decrease. not much and you might not even see it but it will happen.