M768MR Mainboard User’s Manual
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.
On the mainboard, locate the two 4-pin connectors CDIN1/2.
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.
Infrared Port
You can connect an infrared port to the mainboard. You can
purchase this option from third-party vendors.
1. Locate the infrared port SIR1 header on the mainboard.
2. If you are adding an infrared port, connect the ribbon cable
from the port to the SIR1 header and then secure the port to an
appropriate place in your system chassis.
18
1
V
C
C
3
IR
R
X
4
IR
T
X
5
G
N
D
SIR1
CDIN2
CDIN1
1