I just set up my new system with a Radeon 9800 Pro..
Normally I run 128MB aperture size...but should I increase it now to 256 or 512 since I've got 1GB of ram?
Also..the AGP voltage right now is at 1.5V...9800 Pro uses a molex connector as well as AGP slot power...but should I up the AGP voltage?
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. --Albert Einstein
More aboutvoltage aperture size
Well... no way to change anything if your system is running properly Test ur system with some softwares/games like 3Dmark or UT2003 etc, if they perform as they should, and no crash issue or any problem, then there is nothing to worry about
If you read <A HREF="http://www.rojakpot.com/default.aspx?location=1" target="_new">here</A> you'll see more is not better on AGP aperture size. Also this is the best BIOS descriptions & settings I've found on the web.