14
Connecting Optional Devices
Refer to the following information to connect the mainboard’s
optional devices:
SPK1: Speaker Connector
Connect the cable from the PC speaker to the SPK1 connector on
the mainboard.
Pin Signal Pin Signal
1 SPKR 2 NC
3 GND 4 +5V
AUDIO2: Front Panel Audio Connector
This connector allows the user to install auxiliary front-oriented
microphone and line-out ports for easier access.
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 NC 8 KEY
9 AUD_FPOUT_L 10 AUD_RET_L
USB2: Front panel USB Connector
The mainboard 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
USB2
1
UDIO2
1
IR1
1
SPK1
SPDIFO1
1
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