MSI MS-6534 - Manual (Page 107)

Using 4-/6-channel Audio Function
A-1
Appendix A. Using 4-/6-channel Audio
Function
The mainboard comes with C-Media 6-channel audio function, which
allows you to attach 4 or 6 speakers for better space sound effect. The
section will tell you how to activate 4-/6-channel audio function.
This section includes the following topics:
Installing C-Media Drivers A-2
Hardware Configuration A-2
Software Configuration A-3
A
Using 4-/6-channel Audio Function