1.10.2 Internal connectors Asus prime Asus M3A78-EM

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Chapter 1: Product introduction

8.. Digital.audio.connector.(4-1.pin.SPDIF_OUT)

This connector is for an additional Sony/Philips Digital Interface (S/PDIF) 

port(s). Connect the HDMI module cable to this connector, then install the 

module to a slot opening at the back of the system chassis.

Ensure 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.

M3A78-EM Digital Audio Connector

R

M3A78-EM

+5

V

SPDIFOU

T

GN
D

SPDIF_OUT

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.

M3A78-EM Parallel Port Connector

R

M3A78-EM

LPT

STB#

AF

D

PD

0

ERR#

PD

1

INIT#

PD

2

SLIN

#

PD

3

GN
D

PD

4

1

GN
D

PD

7

PD

6

PD

5

GN
D

GN
D

GN
D

ACK#

GN
D

BUSY PE SLCT

GN
D

GN
D