Gigabyte GA-K8N Ultra-SLI User Manual page 80

STEP 3:
Click "Speaker Configuration" then click on the
left selection bar and select "2CH Speaker" to
complete 2 channel audio configuration.
4 Channel Audio Setup
STEP 1 :
Connect the front channels to "Front Speaker Out",
the rear channels to "Rear Speaker Out".
STEP 2 :
Following installation of the audio driver, you find a
Sound Effect icon on the lower right hand
taskbar. Click the icon to select the function.
STEP 3:
Click "Speaker Configuration" then click on the
left selection bar and select "4CH Speaker" to
complete 4 channel audio configuration.
K8 nForce4 SLI Series Motherboard - 80 -
Front Speaker Out
R e a r S p e a k e r
Out