I posted a similar post . I am tring to to gain some more Performance out of my x1600Pro agp card . I recently found out that the voltage is locked in the bios . so the only other option i have is to attempt a volt mod .... i cant find anything on a x1600 but i was able to find one on a x1300 ... Located here from looking at this guide it has similar layout as this card ... has anyone tried volt modding there x1600 cards ? and can i use this guide as a basis ?