Changing AGP speeds in X
By default all drivers use AGP 1x mode. If your motherboard and graphics card support a faster AGP mode you can change this by putting the following in your XF86Config file:
Section "Device"
...
Option "AGPMode" "n"
End Section
Where "n" is one of "1", "2" or "4".
Your XF86Config file is usually located at /etc/X11/XF86Config.
Last updated: 10/02/2005