GIGABYTE GA-945PL-S3 Owner's Manual

GA-945PL-S3

Intel® Core

TM

2 Extreme / Core

Intel® Pentium® D / Pentium® 4 LGA775 Processor Motherboard

User's Manual

Rev. 1001

12ME-945PLS3-1001R

TM

2 Duo

* The WEEE marking on the product indicates this product must not be disposed of with user's other household waste

and must be handed over to a designated collection point for the recycling of waste electrical and electronic equipment!!

* The WEEE marking applies only in European Union's member states.

Jul. 07, 2006

GA-945PL-S3

Motherboard

Jul. 07, 2006

GA-945PL-S3

Motherboard

Copyright

© 2006 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.

The trademarks mentioned in the manual are legally registered to their respective companies.

Notice

The written content provided with this product is the property of Gigabyte.

No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any

means without Gigabyte's prior written permission. Specifications and features are subject to

change without prior notice.

Product Manual Classification

In order to assist in the use of this product, Gigabyte has categorized the user manual in the

following:

 For quick installation, please refer to the "Hardware Installation Guide" included with the

product.

 For detailed product information and specifications, please carefully read the

"Product User Manual".

 For detailed information related to Gigabyte's unique features, please go to the

"Technology Guide" section on Gigabyte's website to read or download the information

you need.

For more product details, please visit Gigabyte's website at www.gigabyte.com.tw

Table of Contents

Item Checklist ................................................................................................................. 6

Optional Accessories ...................................................................................................... 6

GA-945PL-S3 Motherboard Layout ............................................................................... 7

Block Diagram ................................................................................................................ 8

Chapter 1 Hardware Installation .................................................................................... 9

1-1 Considerations Prior to Installation .................................................................... 9

1-2 Feature Summary .......................................................................................... 10

1-3 Installation of the CPU and CPU Cooler ....................................................... 12

1-3-1 Installation of the CPU ......................................................................................... 12

1-3-2 Installation of the CPU Cooler ............................................................................ 13

1-4 Installation of Memory .................................................................................... 14

1-5 Installation of Expansion Cards ...................................................................... 16

1-6 I/O Back Panel Introduction ........................................................................... 17

1-7 Connectors Introduction .................................................................................. 18

Chapter 2 BIOS Setup ................................................................................................ 29

The Main Menu (For example: BIOS Ver. : E6) ....................................................... 30

2-1 Standard CMOS Features ............................................................................. 32

2-2 Advanced BIOS Features .............................................................................. 34

2-3 Integrated Peripherals ..................................................................................... 36

2-4 Power Management Setup ............................................................................. 38

2-5 PnP/PCI Configurations ................................................................................. 40

2-6 PC Health Status ........................................................................................... 41

2-7 MB Intelligent Tweaker(M.I.T.) ....................................................................... 43

2-8 Load Fail-Safe Defaults ................................................................................... 46

2-9 Load Optimized Defaults ................................................................................. 46

2-10 Set Supervisor/User Password ..................................................................... 47

2-11 Save & Exit Setup......................................................................................... 48

2-12 Exit Without Saving ....................................................................................... 48

- 4 -

Chapter 3 Install Drivers ............................................................................................. 49

3-1 Install Chipset Drivers .................................................................................... 49

3-2 Software Applications ..................................................................................... 50

3-3 Driver CD Information .................................................................................... 50

3-4 Hardware Information ..................................................................................... 51

3-5 Contact Us ..................................................................................................... 51

Chapter 4 Appendix ................................................................................................... 53

4-1 Unique Software Utilities ................................................................................ 53

4-1-1 EasyTune 5 Introduction ..................................................................................... 53

4-1-2 Xpress Recovery2 Introduction ......................................................................... 54

4-1-3 Flash BIOS Method Introduction ........................................................................ 56

4-1-4 2- / 4- / 6- / 8- Channel Audio Introduction ...................................................... 65

4-2 Troubleshooting ............................................................................................... 71

- 5 -

Item Checklist

IDE Cable x 1, FDD Cable x 1

SATA 3Gb/s Cable x 2

I/O Shield

* The items listed above are for reference only, and are subject to change without notice.

Optional Accessories

 2 Ports USB2.0 Cable (Part Number: 12CR1-1UB030-51/R)

 5.1/7.1 Surround Cable (Part Number: 12CF1-1AU004-01R )

- 6 -

GA-945PL-S3 Motherboard Layout

KB_MS

COMA

USB

USB_LAN

AUDIO

HDA_SUR

RTL

8111B

CODEC

CD_IN

LPT

IT8718

FDD

CPU_FAN

PCIE_16

PCI1

PCI2

PCI3

GA-945PL-S3

DDRII1

Intel® ICH7

SATAII0

BIOS

SATAII1

F_USB2

DDRII2

DDRII4

DDRII3

SATAII2

SATAII3

IDE1

F_PANEL

ATX

ATX_12V

LGA775

Intel® 945PL

F_AUDIO

PCIE_3

PCIE_1

PCIE_2

CI

CLR_CMOS

BAT

SPDIF_IO

SYS _FAN

- 7 -

F_USB1

PWR_LED

Block Diagram

PCIe CLK
(100MHz)

PCI Express Bus

PCIe CLK
(100MHz)

3 PCI Express x1

PCI Express x16

RJ45

RTL

8111B

x1

x1

x1

PCI Bus

x1

LGA775

Processor

Interface

®

Intel

945PL

Intel
ICH7

CODEC

Host

®

CPUCLK+/-(200/133MHz)

DDRII 400/533MHz DIMM

Dual Channel Memory

MCHCLK(200/133MHz)

BIOS

4 SATA 3Gb/s
ATA33/66/100

IDE1 Channel

IT8718

PS/2 KB/Mouse

Floppy

LPT Port

COM Port

PCI CLK
(33MHz)

3 PCI

8 USB

Line-In

SPDIF In

Ports

SPDIF Out

MIC

Line-Out

Side Speaker Out

Surround Speaker Out

Center/Subwoofer Speaker Out

- 8 -

Chapter 1Hardware Installation

1-1 Considerations Prior to Installation

Preparing Your Computer

The motherboard contains numerous delicate electronic circuits and components which can
become damaged as a result of electrostatic discharge (ESD). Thus, prior to installation, please
follow the instructions below:

1. Please turn off the computer and unplug its power cord.

2. When handling the motherboard, avoid touching any metal leads or connectors.

3. It is best to wear an electrostatic discharge (ESD) cuff when handling electronic components
(CPU, RAM).

4. Prior to installing the electronic components, please have these items on top of an antistatic
pad or within a electrostatic shielding container.

5. Please verify that the power supply is switched off before unplugging the power supply connector
from the motherboard.

Installation Notices

1. Prior to installation, please do not remove the stickers on the motherboard. These stickers
are required for warranty validation.

2. Prior to the installation of the motherboard or any hardware, please first carefully read the
information in the provided manual.

3. Before using the product, please verify that all cables and power connectors are connected.

4. To prevent damage to the motherboard, please do not allow screws to come in contact with
the motherboard circuit or its components.

5. Please make sure there are no leftover screws or metal components placed on the motherboard
or within the computer casing.

6. Please do not place the computer system on an uneven surface.

7. Turning on the computer power during the installation process can lead to damage to system
components as well as physical harm to the user.

8. If you are uncertain about any installation steps or have a problem related to the use of the
product, please consult a certified computer technician.

English

Instances of Non-Warranty

1. Damage due to natural disaster, accident or human cause.

2. Damage as a result of violating the conditions recommended in the user manual.

3. Damage due to improper installation.

4. Damage due to use of uncertified components.

5. Damage due to use exceeding the permitted parameters.

6. Product determined to be an unofficial Gigabyte product.

Hardware Installation- 9 -

English

1-2 Feature Summary

CPU  Supports LGA775 Intel® Core

TM

2 Extreme / Core

Pentium® 4

 L2 cache varies with CPU
Front Side Bus  Supports 800/533MHz FSB
Chipset Northbridge: Intel® 945PL Express Chipset

 Southbridge: Intel® ICH7
LAN  Onboard RTL8111B chip (10/100/1000Mbit)
Audio  Onboard Realtek ALC883 CODEC chip

 Supports High Definition Audio

 Supports 2 / 4 / 6 / 8 channel audio

(Note 1)

 Supports SPDIF In/Out connection

 Supports CD In connection

Storage  Intel® ICH7

- 1 FDD connector, allowing connection of 1 FDD devices

- 1 IDE connector (IDE1) with UDMA 33/ATA 66/ATA 100 support,
allowing connection of 2 IDE devices

- 4 SATA 3Gb/s connectors (SATAII0, SATAII1, SATAII2, SATAII3),
allowing connection of 4 SATA 3Gb/s devices

O.S Support  Microsoft Windows 2000/XP
Memory  4 DDRII DIMM memory slots (supports up to 2GB memory)

 Supports dual channel DDRII 400/533

(Note 2)

 Supports 1.8V DDRII DIMMs

Expanstion Slots  1 PCI Express x16 slot

 3 PCI Express x1 slots
 3 PCI slots

Internal Connectors  1 24-pin ATX power connector

 1 4-pin ATX 12V power connector
 1 floppy connector
 1 IDE connector
 4 SATA 3Gb/s connectors
 1 CPU fan connector
 1 system fan connector
 1 front panel connector
 1 front audio connector
 1 CD In connector
 1 power LED connector
 2 USB 2.0/1.1 connectors for additional 4 USB 2.0/1.1 ports by cables
 1 SPDIF In/Out connector
 1 HDA_SUR connector

TM

2 Duo / Pentium® D /

DIMMs

GA-945PL-S3 Motherboard - 10 -

Rear Panel I/O  1 PS/2 keyboard port

 1 PS/2 mouse port
 1 parallel port
 1 serial port (COMA)
 4 USB 2.0/1.1 port
 1 RJ-45 ports
 3 audio jacks (Line In / Line Out / MIC In)

I/O Control  IT8718 chip
Hardware Monitor  System voltage detection

 CPU temperature detection
 CPU / System fan speed detection
 CPU warning temperature
 CPU / System fan failure warning
 Supports CPU Smart Fan function

BIOS  1 4Mbit flash ROM

 Use of licensed AWARD BIOS

Additional Features  Supports @BIOS

 Supports Download Center
 Supports Q-Flash
 Supports EasyTune
 Supports Xpress Install
 Supports Xpress Recovery2
 Supports Xpress BIOS Rescue

Bundle Software  Norton Internet Security (OEM version)
Form Factor  ATX form factor; 30.5cm x 19.3cm

(Note 3)

English

(Note 1) To set up an 8 channel audio configuration, you must use 5.1/7.1 Surround Cable (optional).
(Note 2) Some memory configurations will result in memory frequency being reduced from 533MHz

down to 400MHz. (Please refer to to Page 15 for more information.)

(Note 3) EasyTune functions may vary depending on different motherboards.

Hardware Installation- 11 -

English

1-3 Installation of the CPU and CPU Cooler

Before installing the CPU, please comply with the following conditions:

1. Please make sure that the motherboard supports the CPU.

2. Please take note of the one indented corner of the CPU. If you install the CPU in the
wrong direction, the CPU will not insert properly. If this occurs, please change the
insert direction of the CPU.

3. Please add an even layer of heat sink paste between the CPU and CPU cooler.

4. Please make sure the CPU cooler is installed on the CPU prior to system use,
otherwise overheating and permanent damage of the CPU may occur.

5. Please set the CPU host frequency in accordance with the processor specifications. It
is not recommended that the system bus frequency be set beyond hardware specifica­tions since it does not meet the required standards for the peripherals. If you wish to set
the frequency beyond the proper specifications, please do so according to your hard­ware specifications including the CPU, graphics card, memory, hard drive, etc.

HT functionality requirement content :

Enabling the functionality of Hyper-Threading Technology for your computer system
requires all of the following platform components:

- CPU: An Intel® Pentium 4 Processor with HT Technology

- Chipset: An Intel® Chipset that supports HT Technology

- BIOS: A BIOS that supports HT Technology and has it enabled

- OS: An operation system that has optimizations for HT Technology

1-3-1 Installation of the CPU

Metal Lever

Fig. 1
Gently lift the metal
lever located on the
CPU socket to the
upright position.

Fig. 2
Remove the plastic
covering on the CPU
socket.

Fig. 3
Notice the small gold
colored triangle
located on the edge of
the CPU socket.
Align the indented

corner of the CPU with the triangle and gently
insert the CPU into position. (Grasping the CPU
firmly between your thumb and forefinger, care­fully place it into the socket in a straight and down­wards motion. Avoid twisting or bending motions
that might cause damage to the CPU during
installation.)

GA-945PL-S3 Motherboard - 12 -

Fig. 4
Once the CPU is
properly inserted,
please replace the
load plate and push the
metal lever back into
its original position.

1-3-2 Installation of the Cooler

English

Male Push Pin

The top of Female Push Pin

Female Push Pin

Fig.1
Please apply an even layer of CPU cooler paste
on the surface of the installed CPU.

Fig. 3
Place the CPU cooler atop the CPU and make
sure the push pins aim to the pin hole on the
motherboard.Pressing down the push pins
diagonally.

Fig. 5
Please check the back of motherboard after
installing. If the push pin is inserted as the picture,
the installation is complete.

Fig. 2
(Turning the push pin along the direction of arrow is to
remove the CPU cooler, on the contrary, is to install.)
Please note the direction of arrow sign on the male
push pin doesn't face inwards before installation. (This
instruction is only for Intel boxed fan)

Fig. 4
Please make sure the Male and Female push pin
are joined closely. (for detailed installation
instructions, please refer to the CPU cooler instal­lation section of the user manual)

Fig. 6
Finally, please attach the power connector of the
CPU cooler to the CPU fan header located on the
motherboard.

The CPU cooler may adhere to the CPU as a result of hardening of the heat paste. To prevent
such an occurrence, it is suggested that either thermal tape rather than heat paste be used for
heat dissipation or using extreme care when removing the CPU cooler.

Hardware Installation- 13 -

English

1-4 Installation of Memory

Before installing the memory modules, please comply with the following conditions:

1. Please make sure that the memory used is supported by the motherboard. It is
recommended that memory of similar capacity, specifications and brand be used.

2. Before installing or removing memory modules, please make sure that the computer power
is switched off to prevent hardware damage.

3. Memory modules have a foolproof insertion design. A memory module can be installed in
only one direction. If you are unable to insert the module, please switch the direction.

The motherboard supports DDRII memory modules, whereby BIOS will automatically detect memory
capacity and specifications. Memory modules are designed so that they can be inserted only in one direction.
The memory capacity used can differ with each slot.

Notch

DDRII

Fig.1
The DIMM socket has a notch, so the DIMM memory mod­ule can only fit in one direction. Insert the DIMM memory
module vertically into the DIMM socket. Then push it down.

Fig.2
Close the plastic clip at both edges of the DIMM sockets to
lock the DIMM module.
Reverse the installation steps when you wish to remove
the DIMM module.

GA-945PL-S3 Motherboard - 14 -

Dual Channel Memory Configuration

GA-945PL-S3 supports the Dual Channel Technology. After operating the
Dual Channel Technology, the bandwidth of Memory Bus will add double.
GA-945PL-S3 includes 4 DIMM sockets, and each Channel has two DIMM

sockets as following:

Channel 0 : DDRII1, DDRII2

Channel 1 : DDRII3, DDRII4
If you want to operate the Dual Channel Technology, please note the following explanations due
to the limitation of Intel chipset specifications.

1. Dual Channel mode will not be enabled if only one/three DDRII memory module is
installed.

2. To enable Dual Channel mode with two or four memory modules (it is recommended to
use memory modules of identical brand, size, chips, and speed), install the memory
according to the dual channel memory configuration table below (Figure 1).

Dual Channel Memory Configuration Table (DS: Double Side, SS: Single Side, X: Empty)

DDRII1 DDRII2 DDRII3 DDRII4

2 memory modules

4 memory modules

Memory configurations in Figure 2 will result in memory frequency being reduced from 533MHz down
to 400MHz. (DS: Double Side, SS: Single Side, X: Empty)

2 memory modules

3 memory modules

4 memory modules

DS/SS X DS/SS X

DS/SS X X DS/SS

X DS/SS DS/SS X

X DS/SS X DS/SS

SS SS SS SS

Figure 1

DDRII1 DDRII2 DDRII3 DDRII4

SS SS X X

XXSSSS

SS SS DS/SS X

SS SS X DS/SS

DS/SS X SS SS

X DS/SS SS SS

SS SS SS SS

Figure 2

English

Because of chipset limitations, do not populate both DIMM sockets of the same channel with
double-sided memory modules to prevent system's failure to start or incorrect detection of
memory modules,

Hardware Installation- 15 -

English

1-5 Installation of Expansion Cards

You can install your expansion card by following the steps outlined below:

1. Read the related expansion card's instruction document before install the expansion card into the
computer.

2. Remove your computer's chassis cover, screws and slot bracket from the computer.

3. Press the expansion card firmly into expansion slot in motherboard.

4. Be sure the metal contacts on the card are indeed seated in the slot.

5. Replace the screw to secure the slot bracket of the expansion card.

6. Replace your computer's chassis cover.

7. Power on the computer, if necessary, setup BIOS utility of expansion card from BIOS.

8. Install related driver from the operating system.

Installing a PCI Express x16 expansion card:

Please align the VGA card to the onboard
PCI Express x16 slot and press firmly
down on the slot. Make sure your VGA
card is locked by the latch at the end of
the PCI Express x16 slot. When you try
uninstall the VGA card, please gently
press the latch as the picture to the left
shows to release the card.

GA-945PL-S3 Motherboard - 16 -

1-6 I/O Back Panel Introduction

PS/2 Keyboard and PS/2 Mouse Connector

To install a PS/2 port keyboard and mouse, plug the mouse to the upper port (green) and the keyboard
to the lower port (purple).

LPT (Parallel Port)

The parallel port allows connection of a printer, scanner and other peripheral devices.

COMA (Serial Port)

Devices like mouses, modems, and etc. can be connected to Serial port.

USB port

Before you connect your device(s) into USB connector(s), please make sure your device(s) such
as USB keyboard, mouse, scanner, zip, speaker...etc. have a standard USB interface. Also make
sure your OS supports USB controller. If your OS does not supportUSB controller, please con­tact OS vendor for possible patch or driver upgrade. For more information please contact your
OS or device(s) vendors.

LAN Port

The provided Internet connection is Gigabit Ethernet, providing data transfer speeds of 10/100/
1000Mbps.

Line In

Devices like CD-ROM, walkman etc. can be connected to Line In jack.

Line Out (Front Speaker Out)

Connect the stereo speakers, earphone or front surround speakers to this connector.

MIC In

Microphone can be connected to MIC In jack.

English

You can use audio software to configure 2-/4-/6-/8- channel audio functioning.

Hardware Installation- 17 -

English

1-7 Connectors Introduction

1

9

13

15

3

2

16
17
7

5

10

11

1) ATX_12V

2) ATX (Power Connector)

3) CPU_FAN

4) SYS_FAN

5) IDE1

6) FDD

7) SATAII0 / 1 / 2 / 3

8) PWR_LED

12

64

10) F_PANEL

11) CD_IN

12) SPDIF_IO

13) HDA_SUR

14) F_USB1 / F_USB2

15) C I

16) CLR_CMOS

17) BAT

9) F_AUDIO

GA-945PL-S3 Motherboard - 18 -

8

14

1/2) ATX_12V/ATX (Power Connector)

With the use of the power connector, the power supply can supply enough stable power to all
the components on the motherboard. Before connecting the power connector, please make sure
that all components and devices are properly installed. Align the power connector with its
proper location on the motherboard and connect tightly.
The ATX_12V power connector mainly supplies power to the CPU. If the ATX_12V power
connector is not connected, the system will not start.
Caution!
Please use a power supply that is able to handle the system voltage requirements. It is
recommended that a power supply that can withstand high power consumption be used (300W
or greater). If a power supply is used that does not provide the required power, the result can
lead to an unstable system or a system that is unable to start.
If you use a 24-pin ATX power supply, please remove the small cover on the power connector
on the motherboard before plugging in the power cord ; otherwise, please do not remove it.

English

3

1

12

1

24

13

Pin No. Definition

1 3.3V

2 3.3V

3 GND

4 +5V

5 GND

6 +5V

7 GND

8 Power Good

9 5V SB(stand by +5V)

10 +12V

11 +12V(Only for 24-pin ATX)

12 3.3V(Only for 24-pin ATX)

4

2

Pin No. Definition

1 GND

2 GND

3 +12V

4 +12V

Pin No. Definition

13 3.3V

14 -12V

15 GND

16 PS_ON(soft On/Off)

17 GND

18 GND

19 GND

20 -5V

21 +5V

22 +5V

23 +5V (Only for 24-pin ATX)

24 GND(Only for 24-pin ATX)

Hardware Installation- 19 -

English

3/4) CPU_FAN / SYS_FAN (Cooler Fan Power Connector)

The cooler fan power connector supplies a +12V power voltage via a 3-pin/4-pin (only for
CPU_FAN) power connector and possesses a foolproof connection design.
Most coolers are designed with color-coded power connector wires. A red power connector
wire indicates a positive connection and requires a +12V power voltage. The black connector
wire is the ground wire (GND).
Remember to connect the CPU/system fan cable to the CPU_FAN/SYS_FAN connector to prevent
CPU damage or system hanging caused by overheating.

CPU_FAN:

Pin No. Definition

1

CPU_FAN

1 GND

2 +12V/Speed Control

3 Sense

4 Speed Control

1

SYS_FAN

SYS_FAN:

Pin No. Definition

1 GND

2 +12V

3 Sense

5) IDE1 (IDE Connector)

An IDE device connects to the computer via an IDE connector. One IDE connector can connect to
one IDE cable, and the single IDE cable can then connect to two IDE devices (hard drive or optical
drive). If you wish to connect two IDE devices, please set the jumper on one IDE device as Master
and the other as Slave (for information on settings, please refer to the instructions located on the IDE
device). Before attaching the IDE cable, please take note of the foolproof groove in the IDE connector.

2

1

40

39

GA-945PL-S3 Motherboard - 20 -

6) FDD (FDD Connector)

The FDD connector is used to connect the FDD cable while the other end of the cable connects to
the FDD drive. The types of FDD drives supported are: 360KB, 720KB, 1.2MB, 1.44MB and

2.88MB.Before attaching the FDD cable, please take note of the foolproof groove in the FDD
connector.

English

33

34

7) SATAII0 / 1 / 2 / 3 (SATA 3Gb/s Connectors)

SATA 3Gb/s can provide up to 300MB/s transfer rate. Please refer to the BIOS setting for the
SATA 3Gb/s and install the proper driver in order to work properly.

Pin No. Definition

7

1

SATAII0

SATAII1

SATAII2

7

1

1

7

SATAII3

1

7

1 GND

2 TXP

3 TXN

4 GND

5 RXN

6 RXP

7 GND

1

2

Hardware Installation- 21 -

English

8) PWR_LED

The PWR_LED connector is connected with the system power indicator to indicate whether the
system is on/off. It will blink when the system enters suspend mode.

Pin No. Definition

1

1 MPD+

2 MPD-

3 MPD-

9) F_AUDIO (Front Audio Connector)

This connector supports either HD (High Definition) or AC97 front panel audio module. If you wish
to use the front audio function, connect the front panel audio module to this connector. Check the pin
assignments carefully while you connect the front panel audio module. Incorrect connection
between the module and connector will make the audio device unable to work or even damage it.
For optional front panel audio module, please contact your chassis manufacturer.

12

910

HD Audio:

Pin No. Definition

1 MIC2_L

2 GND

3 MIC2_R

4 -ACZ_DET

5 LINE2_R

6 FSENSE1

7 FAUDIO_JD

8 No Pin

9 LINE2_L

10 FSENSE2

AC'97 Audio:

Pin No. Definition

1 MIC

2 GND

3 MIC Power

4NC

5 Line Out (R)

6NC

7NC

8 No Pin

9 Line Out (L)

10 NC

By default, the audio driver is configured to support HD Audio. To connect an AC97 front panel
audio module to this connector, please refer to the instructions on Page 70 about the software
settings.

GA-945PL-S3 Motherboard - 22 -

10) F_PANEL (Front Panel Jumper)

Please connect the power LED, PC speaker, reset switch and power switch etc of your chassis
front panel to the F_PANEL connector according to the pin assignment below.

English

Message LED/

Power/

Sleep LED

Power

Switch

PW+

MSG+

MSG-

2
1

HD-

HD+

RES-

Reset Switch

IDE Hard Disk Active LED

HD (IDE Hard Disk Active LED) Pin 1: LED anode(+)

(Blue) Pin 2: LED cathode(-)

SPEAK (Speaker Connector) Pin 1: Power

(Amber) Pin 2- Pin 3: NC

Pin 4: Data(-)

RES (Reset Switch) Open: Normal

(Green) Close: Reset Hardware System

PW (Power Switch) Open: Normal

(Red) Cl ose: Pow er O n/Of f

MSG (Message LED/Power/Sleep LED) Pin 1: LED anode(+)

(Yellow) Pin 2: LED cathode(-)

NC ( Purple) NC

Speaker Connector

PW-

SPEAK+

RES+

NC

SPEAK-

20
19

Hardware Installation- 23 -

English

11) CD_IN (CD In Connector)

Connect CD-ROM or DVD-ROM audio out to the connector.

Pin No. Definition

1 CD-L

1

2 GND

3 GND

4 CD-R

12) SPDIF_IO (SPDIF In/Out)

The SPDIF output is capable of providing digital audio to external speakers or compressed AC3
data to an external Dolby Digital Decoder. Use this feature only when your stereo system has
digital input function. Use SPDIF IN feature only when your device has digital output function.
Be careful with the polarity of the SPDIF_IO connector. Check the pin assignment carefully while
you connect the SPDIF cable, incorrect connection between the cable and connector will make the
device unable to work or even damage it. For optional SPDIF cable, please contact your local
dealer.

2

1

GA-945PL-S3 Motherboard - 24 -

Pin No. Definition

6

5

1 Power

2 No Pin

3 SPDIF

4 SPDIFI

5 GND

6 GND