Installing the Motherboard
17
F_AUDIO: Front Panel Audio header for Azalia
This header allows the user to install auxiliary front-oriented microphone and 6/8-
channel (optional) line-out ports for easier access.
Pin Signal Name
Pin Signal Name Function
1 PORT 1L 2 GND
3 PORT 1R 4 PRESENCE#
5 PORT 2R 6 Sense1_return
7 SENSE_SEND 8 KEY
9 PORT 2L 10 Sense2_return
Pin Signal Name
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
1394A2: IEEE 1394A header (optional)
Connect this header to any device with IEEE 1394a interface.
AUX_IN: Auxiliary In header (optional)
Pin Signal Name Function
1 TPA1P 2 TPA1M
3 GND 4 GND
5 TPB1P 6 TPB1M
7 CPWR2 8 CPWR2
9 Key 10 GND
Pin Signal Name
Pin Signal Name
2 GND Ground
1 AUX_L AUX In left channel
3 GND Ground
4 AUX_R AUX In right channel
Pin Signal Name Function
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