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Internal Sound Connections
If you have installed a CD-ROM drive or DVD-ROM drive, you
can connect the drive audio cable to the onboard sound system.
IR1
1
On the mainboard, locate the two 4-pin connectors CD_IN1 and
CD_IN2. There are two kinds of connector because different
brands of CD-ROM drive have different kinds of audio cable
connectors. Connect the cable to the appropriate connector.
CD_IN1
Pin
Signal
1
CD IN L
2
GND
3
GND
4
CD IN R
Infrared Port
You can connect an infrared port to the mainboard. You can
purchase this option from third-party vendors.
Pin
Signal
1
NC
3
+5V
5
IRTX
1. Locate the infrared port IR1 header on the mainboard.
2. If you are adding an infrared port, connect the ribbon cable
from the port to the IR header and then secure the port to an
appropriate place in your system chassis.
2: Mainboard Installation
CD_IN1 CD_IN2
1
1
CD_IN2
Pin
Signal
1
GND
2
CD IN R
3
GND
4
CD IN L
Pin
Signal
2
KEY
4
GND
6
IRRX
1
J1
19
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