Technical information

58 Chapter 5
Optional Devices
Refer to the following information for connecting the main board optional devices.
AUDIO1: Front Panel Audio Header for Azalia
This header allows you to install auxiliary front-oriented microphone and line-out ports for easier
access.
AUX_IN: Auxiliary in Connector
This connector is an additional line-in audio connector. It allows you to attach a line-in cable
when the rear line-in jack is set as line-out port for four-channel function.
Pin Signal Name Pin Signal Name
1 AUD_MIC 2 AUD_GND
3 MIC_BIAS 4 PRESENCE
5 AUD_F_R 6 AUD_RET_R
7 FRONT_IO_SENSE 8 KEY
9 AUD_F_L 10 AUD_RET_L
Pin Signal Name Function
1 AUX_R AUX in right channel
2 GND Ground
3 GND Ground
4 AUX_L AUX in left channel