17
Installing the Motherboard
F_AUDIO1: Front Panel Audio header
This header allows the user to install auxiliary front-oriented microphone and line-
out ports for easier access.
Connecting Optional Devices
CD_IN1: Analog audio input connector
Pin Signal Name Function
1 CD in_R CD In right channel
2 GND Ground
3 GND Ground
4 CD in_L CD In left channel
1394A1~A2: 1394A headers (Optional)
1
A1P
2
A1M
3 GND 4 GND
5 B1P 6 B1M
7 CPWR 8 CPWR
9 Key 10 GND
Pin Signal Name
Pin Signal Name
Refer to the following for information on connecting the motherboard’s optional
devices:
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
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