GIGABYTE Processor Motherboard GA-7N400S-L - Manual (Page 70)

GA-7N400S(-L) Motherboard - 70 -
English
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
4-channel mode for 4 speaker output check box.
Clear the Only SURROUND-KIT check box and press
OK.
4 Channel Audio Setup
STEP 1:
Connect the front channels to "Line Out", the rear
channels to "Line In".
Line In (Rear Speaker Out)
Line Out (Front Speaker Out)
When the Environment setting is None, the sound
would be performed as stereo mode (2-channel
output). Please select other settings (ex: Living
Room) for 4-channel output.