GIGABYTE GA-P31-ES3G - Manual (Page 70)

GA-P31-ES3G Motherboard - 70 -
Step 2:
Click the Audio I/O tab. In the speaker list on the
left, select 2CH Speaker, 4CH Speaker, 6CH
Speaker, or 8CH Speaker according to the type of
speaker configuration you wish to set up.
Step 3:
Everytime you connect an audio device to an audio
jack, the Connected device box appears. Select
the device according to the type of device you connect.
Then click OK to complete the configuration.
The pictures to the right show the 7.1-channel speaker
configurations.
Center/Subwoofer
Speaker Out
7.1-Channel Speakers:
Rear Speaker Out
Front Speaker Out
Side Speaker Out