I be run dual-xeon on a old server box -- it have 8mb ATI rage integrate graphic . I plug this baby in and install driver -lrb- I run fedora 11 so sudo yum install kmod-nvidia-pa , from rpmfusion repo -rrb- and it work like a champ . I be currently use compiz-fusion and cairo-dock with 3d acceleration no prob . it be really a great card -- and yes to the other reviewer : my image be sharper right after I plug it in ! I think it have to do with color depth of the card . I have 3 more pcus slot so I might get a 9400gt too ... and dual\/triple\/quad screen ?