Nvidia 680I LT SLI - Manual (Page 35)

Mainboard nForce 680i SLI/
Mainboard nForce 680i LT SLI
31
Channels Setup for Windows XP
1. After into the system, click the audio icon from the Windows XP screen.
2. Click “Audio I/O” button, you can see the screen like the picture below.
3. You can choose 2, 4, 6 or 8 channels by your speakers.
4. You can click the “Auto test” button to test your audio devices.
To take advantage of 7.1 Channel Audio Effects, you must use
audio software that supports this functionality. You must also
make sure your software is specifically configured for 7.1
Channel Audio Effect supoort.