MSI K7N2M Manual page 80

Connecting the Speakers
When you have set the Multi-Channel Audio Function mode properly
in the software utility, connect your speakers to the correct phonejacks
in accordance with the setting in software utility.
2-Channel Mode for Stereo-Speaker Output
Refer to the following diagram and caption for the function of each
phonejack on the back panel when 2-Channel Mode is selected.
1 Line In
2 Line Out (Front channels)
3 MIC
4-Channel Mode for 4-Speaker Output
The audio jacks on the back panel always provide 2-channel analog
audio output function, however these audio jacks can be transformed
to 4- or 6- channel analog audio jacks by selecting the corresponding
multi-channel operation from No. of Speakers.
Refer to the following diagram and caption for the founction of each
jack on the back panel when 4-Channel Mode is selected.
Using 4- or 6-Channel Audio Function
Back Panel
1
2
3
A-7