7.
Optical drive audio in connector (4-pin CD)
This connector allows you to receive stereo audio input from sound sources such as a
CD-ROM, TV tuner, or MPEG card.
CD
Left
Audio Channel
GND
GND
Right
Audio Channel
M4A78 PLUS
M4A78 PLUS Internal audio connector
8.
Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) ports.
SPDIF_OUT
+5
V
SPDIFOU
T
GND
M4A78 PLUS
M4A78 PLUS Digital audio connector
Ensure that the audio device of Sound playback is
Realtek High Definition Audio (the
name may be different based on the OS)
. Go to
Start > Control Panel > Sounds and
Audio Devices > Sound Playback
to configure the setting.
The S/PDIF module is purchased separately.
9.
LPT connector
The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT
standardizes as IEEE 1284, which is the parallel port interface on IBM PC-compatible
computers.
M4A78 PLUS
M4A78 PLUS Parallel Port Connector
PIN 1
LPT
STB# PD
0
PD
1
PD
2
PD
3
PD
4
PD
5
PD
6
PD
7
ACK# BUSY
PE
SLCT
AF
D
ERR# INIT
#
SLIN
#
GND GND GND GND GND GND GND GND
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ASUS M4A78 PLUS
Summary of Contents for M4A78 PLUS - Motherboard - ATX
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