title xplains all, yeah yeah, they're crap video cards. but i dont wanna upgrade YET. maybe in a month or two... but here: what software can overclock a ATI Rage fury pro 128 AGP, and a Nvidia Vanta AGP.
Try download ATI Tool, and see if that will work on a card that old. Im almost positive you can overclock it, but I dont think you can monitor the temps with it though.