8-channel audio
8-channel audio is available only on certain Intel® Desktop Boards. After installing the audio driver from the Intel Express Installer CD, multi-channel audio can be enabled:
Connect speakers to A, B, C, D, or E as shown in the figure below, up to eight speakers.
it seem that MSI user manual does not mention how to support 7.1 for desktop motherboard with 5 stack
even intel web site does not mention which jack need to be retask for (side channel playback)
http:// www.intel. com/support/ motherboards/ desktop/ sb/CS-034198. htm
8-channel audio
8-channel audio is available only on certain Intel® Desktop Boards. After installing the audio driver from the Intel Express Installer CD, multi-channel audio can be enabled:
Connect speakers to A, B, C, D, or E as shown in the figure below, up to eight speakers.