hey if i up the voltage to my agp in my bios will my card OC better? i am new to OC'ing vid cards. i can get 540-355 from 500-300 with no artifacts in ati tray tools, but if i play battlefield i get some artifacts, or it causes my PC to reboot. it runs stable at 535-340, with stock voltage. i realize that neither are a big jump, but i dont have the $$$ for a new card right now, and anything will help!