16
Motherboard User’s Guide
Connecting Optional Devices
Refer to the following for information on connecting the
mainboard’s optional devices:
SPK1: Speaker Connector
Connect the cable from the PC speaker to the SPK1 connector on
the mainboard.
AUDIO2: Front Panel Audio Connector
This connector allows the user to install auxiliary front-oriented
microphone and line-out ports for easier access.
USB3
USB4
1
1
SPK1
1
AUDIO2
1
IR1
1
Pin
Signal
Pin
Signal
1 SPKR 2 NC
3 GND 4 +5V
Pin
Signal
Pin
Signal
1 AUD_MIC 2 AUD_GND
3 AUD_MIC_BIAS 4 AUD_VCC
5 AUD_FPOUT_R 6 AUD_RET_R
7 HP_ON 8 KEY
9 AUD_FPOUT_L 10 AUD_RET_L