12
Motherboard User’s Guide
Connecting Optional Devices
Refer to the following for information on connecting the motherboard’s optional
devices:
SPK1: Speaker Header
Connect the cable from the PC speaker to the SPK1 header on the motherboard.
AUDIO2: Front Panel Audio Header
This header allows the user to install auxiliary front-oriented microphone and
line-out ports for easier access.
Pin Signal
1SPKR
2NC
3NC
4+5V
Pin Signal Pin Signal
1AUD_MIC1 2AUD_GND
3AUD_MIC2 4AUD_VCC
5 AUD_FPOUT_R 6 AUD_RET_R
7HP_ON 8KEY
9 AUD_FPOUT_L 10 AUD_RET_L
1
AUDIO2
USB4
USB3
1
1
1
SPK1
USB3/USB4: Front panel USB Header
The motherboard has USB ports installed on the rear edge I/O port array.
Additionally, some computer cases have USB ports at the front of the case. If
you have this kind of case, use auxiliary USB headers USB3/USB4 to connect
the front-mounted ports to the motherboard.
1
SIR1