1-17
Chapter 1 Motherboard 4845GVQ
Intel
ICH4
VIA
mPGA478B
Socket 478
Intel
845GV
VT610
5
IT8712F
LPC IO
BIOS
VIA
VT6306
1.7.6 CD Audio-In Connectors: CDIN1/CDIN2
CDIN1 and CDIN2 are the connectors for CD-Audio Input signal.
Please connect them to CD-ROM CD-Audio output connector.
CDIN1 and CDIN2 have the same pin assignment but different
pin pitch.
Pin CDIN1
Definition
1
CD-L
2
GND
3
GND
4
CD-R
Pin CDIN2
Definition
1
GND
2
CD-L
3
GND
4
CD-R
CDIN1
CDIN2
1.7.7 IR infrared module: IR1 Connector
This connector supports the optional wireless transmission
and reception infrared module. You must configure the setting
through the BIOS setup to use the IR function.
IR1 Pin Assignment
1 +5V
2
N/A
3
IRRX
4
GND
5
IRTX
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