User`s guide

15
Chapter 2: Motherboard Installation
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 Pin Signal
1 A UD_MIC 2 A UD_GND
3 AUD_MIC_BIAS 4 AUD_VCC
5 A UD_FPOUT_R 6 A UD_RET_R
7 HP_ON 8 KEY
9 A UD_FPOUT_L 10 A UD_RET_L
USB3/USB4: Front Panel USB Headers
The motherboard has USB ports installed on the rear edge I/O port array. Addition-
ally, 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
IR1
AUDIO1
1
USB3
1
USB4
1
SPK1
1
1
AUX_IN
SPDIFO1
1