21
Installing the Motherboard
Connecting Optional Devices
Refer to the following for information on connecting the motherboard’s optional devices:
AUDIO1: Front Panel Audio header
This header allows the user to install auxiliary front-oriented microphone and line-out ports
for easier access.
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
Pin Signal Name
9 PORT 2L 10 Sense2_return
Pin Signal Name
If your front panel cable is separated, please connect it to pin1 and pin3
or pin5 and pin7 to activate the MIC function.