Originally posted by jiriki
And, how can i check in which mode my card is running under x?
In your /usr/X11R6/bin, there should be some firecontrol.qt*.gcc*.bz2 Depending on what you use, you can use bzip2 and decompress one of them and run it. It will tell you a bunch of stuff including AGP mode. I'm at AGP 4x, SBA, FW (AGP v2.0)
I had problems with the gcc3.2 version...it seg faults. The qt2.gcc2.96 version works fine for me.