ASROCK A770DE User Manual page 12

To enable Multi-Streaming function, you need to connect a front panel audio cable to the front
panel audio header. After restarting your computer, you will find "VIA HD Audio Deck" tool on
your system. Please follow below instructions according to the OS you install.
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For Windows XP / XP 64-bit OS:
Please click "VIA HD Audio Deck" icon
select "2 Channel", "4 Channel", "6 Channel" or "8 Channel". Click "Power" to save your
change.
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For Windows Vista / Vista
Please click "VIA HD Audio Deck" icon
on the bottom. In "Advanced Options" screen, select "Independent Headphone", and click
"OK" to save your change.
If you enable Multi-Streaming function, Side Speaker function will be disabled. You can only
choose to enable either Multi-Streaming function or Side Speaker function.
, and click "Speaker". Then you are allowed to
64-bit OS:
, and click "Advanced Options" on the left side
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