Abit KN9S User Manual page 30

Driver Configuration for AC'97 audio connection:
The audio driver is originally configured to support HD Audio. For AC'97 audio connection, you
may:
1. Right-click the "Realtek HD Audio
Manager" icon in system tray.
2. Click "Audio I/O" tab, and then click
"Connector Settings".
3. Click "Disabled front panel jack
detection", and then click "OK" to
confirm.
2-20 KN9 SLI, KN9 Ultra, KN9S