ATI 9800Pro Volt Guide @ RojakPot

"However, it is not so simple when it comes to boosting the voltage of your graphics card's GPU (Graphics Processing Unit) and memory chips. There is no BIOS setup menu for you to adjust its voltage. So, if we want to boost the voltages of the GPU and/or memory chips, we have no choice but to physically mod the graphics card."
Actually even approved voltages can sometimes not be enough, depending on what you are trying to accomplish.

Related Web URL: http://www.rojakpot.com/showarticle.aspx?artno=108...