Gigabyte AMD Socket 939 Processor Motherboard GA-K8N51PVM9-RH User Manual page 82

STEP 2:
In the Audio Control Panel, click the Audio I/O tab.
In the upper left list, click 2CH Speaker.
STEP 3:
After a speaker or headphone is plugged into the
rear Line Out jack, a small window will pop up and
ask you what type of equipment is connected.
Choose Headphone or Line Out depending on
the device connected and click OK. The 2-chan-
nel audio setup is completed.
4 Channel Audio Setup
STEP 1 :
After installation of the audio driver, you should find
an Audio Manager icon in your system tray (you
can also find the icon in Control Panel). Double-
click the icon to open the Audio Control Panel.
STEP 2:
In the Audio Control Panel, click the Audio I/O tab.
In the upper left list, click 4CH Speaker.
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