Hi, I'm using the ASUS P5WD-Premium with Fedora 4. I runs great once you get it installed, but it takes some monkeying around. I found that I could not use the primary IDE controller and use the secondary for anything else. The primary controller is on the board by itself with only one connector. The secondary (with 2 connectors) has my HD on the first connector, and a CD and RW-DVD on the other. Also, added noapic to the linux boot line because clock in linux runs amuck. I don't remember anything else being critical. Todd