I am using 915 motherboard,which has a lan card onboard on it. In linux there is a problem with the sound driver as well as with the lancard. i am not able to configure both. lancard is of intel(r) pro/100 ve network connection. sound is of realtek.
Presuming your distro is debian. If not install debian sarge. modprobe eepro100 modprobe ac97_codec
rgds jtd