17
Installing the Motherboard
Connecting Optional Devices
Refer to the following for information on connecting the motherboard’s optional devices:
F_AUDIO: Front Panel Audio header for Azalia
This header allows the user to install auxiliary front-oriented microphone and line-out ports
for easier access.
Pin Signal Name
Pin Signal Name Function
1 AUD_MIC Front Panel Microphone input signal
2 AUD_GND Ground used by Analog Audio Circuits
3 MIC_BIAS Microphone Power
4 AUD_VCC Filtered +5V used by Analog Audio Circuits
5 AUD_F_R Right Channel audio signal to Front Panel
6 AUD_RET_R Right Channel Audio signal to Return from Front Panel
7 REVD Reserved
8 Key No Pin
9 AUD_F_L Left Channel Audio signal to Front Panel
10 AUD_RET_L Left Channel Audio signal to Return from Front Panel
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