Gigabyte GA-8I915MD-GV User Manual page 68

Basic 6 Channel Analog Audio Output Mode
Use the back audio panel to connect the audio
output without any additional module.
STEP 1:
Connect the front channels to "Line Out",the rear
Line In
channels to "Line In", and the Center/Subwoofer
channels to "MIC In".
MIC In Line Out
STEP 2:
After installing the audio driver, you'll find a Sound
Effect icon on the lower right hand taskbar.
Click the icon to select the function.
STEP 3:
On the AC97 Audio Configuration menu, click the
Speaker Configuration tab and select the 6-chan-
nel mode for 5.1 speaker output check box.
Clear the Only SURROUND-KIT check box and
press OK.
Basic 6 Channel Analog Audio Output Mode Notes:
When the Environment setting is None, the
sound would be performed as stereo mode
(2-channel output). Please select the other settings
for 6 channels output.
GA-8I915MD-G/GA-8I915MD-GV Motherboard - 68 -