Intel GA-8I945GZME-RH User Manual
GA-8I945GZME-RH
Intel® Pentium
User's Manual
Rev. 1003
12ME-945GZMER-1003R
®
4 LGA775 Processor Motherboard
* 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.
Jun. 14, 2006
GA-8I945GZME-RH
Motherboard
Jun. 14, 2006
GA-8I945GZME-RH
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 detailed product information and specifications, please carefully read the
"User’s 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-8I945GZME-RH 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 Heatsink .................................................................................. 13
1-4 Installation of Memory .................................................................................... 14
1-5 Installation of Expansion Cards ...................................................................... 15
1-5-1 Graphics Card Support List ................................................................................ 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. : E7) ....................................................... 30
2-1 Standard CMOS Features ............................................................................. 32
2-2 Advanced BIOS Features .............................................................................. 34
2-3 Integrated Peripherals ..................................................................................... 36
2-4 Power Management Setup ............................................................................. 39
2-5 PnP/PCI Configurations ................................................................................. 41
2-6 PC Health Status ........................................................................................... 42
2-7 Frequency/Voltage Control ............................................................................. 44
2-8 Load Fail-Safe Defaults ................................................................................... 45
2-9 Load Optimized Defaults ................................................................................. 45
2-10 Set Supervisor/User Password ..................................................................... 46
2-11 Save & Exit Setup......................................................................................... 47
2-12 Exit Without Saving ....................................................................................... 47
- 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 1
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)
COM Port Cable (Part Number: 12CF1-1CM001-31/R)
5.1/7.1 Surround Cable (Part Number: 12CF1-1AU004-01R )
- 6 -
GA-8I945GZME-RH Motherboard Layout
KB_MS
COMA
VGA
R_USB
USB_LAN
AUDIO
HDA_SUR
CODEC
LPT
Marvell
ATX_12V
F_AUDIO
8001
CD_IN
SYS _FAN
COMB
LGA775
Intel 945GZ
PCI1
PCI2
PCI3
F_USB1
CPU_FAN
BIOS
GA-8I945GZME-RH
PCIE_16
DDRII1
SATAII2
ICH7
SATAII0
SATAII1
F_USB2
PWR_LED
DDRII2
SATAII3
F_PANEL
IT8718
ATX
IDE
BAT
CLR_CMOS
FDD
CI
SPDIF_IO
- 7 -
Block Diagram
VGA
LGA775
Processor
Interface
Host
DDRII 533MHz DIMM
PCI-ECLK
(100MHz)
3 PCI
PCI Express x4
PCI Bus
Marvell
8001
RJ45
CODEC
MIC
Line-Out
Intel
945GZ
GMCH
Intel
ICH7
Line-In
SPDIF In
8 USB
Ports
SPDIF Out
Dual Channel Memory
BIOS
4 Serial ATA
ATA33/66/100
IDE Channel
IT8718
PS/2 KB/Mouse
Floppy
LPT Port
COM Ports
PCICLK
(33MHz)
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® Pentium® 4 Processor
L2 cache varies with CPU
Front Side Bus Supports 800/533MHz FSB
Chipset Northbridge: Intel® 945GZ
Southbridge: Intel® ICH7
LAN Marvell 8001 chip (10/100/1000Mbit)
Audio Onboard Realtek ALC883 CODEC chip
Supports High Definition Audio
Supports 2 / 4 / 6 / 8 channel audio
Supports SPDIF In/Out connection
Supports CD In connection
Storage Intel® ICH7
- 1 FDD connector, allowing connection of 1 FDD device
- 1 IDE connector (IDE) 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 2 DDRII DIMM memory slots (supports up to 2GB memory)
Supports dual channel DDRII 533 DIMMs
Supports 1.8V DDRII DIMMs
Expanstion Slots 1 PCI Express x16 slot
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 COMB 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
(Note 2)
(Note 1)
GA-8I945GZME-RH Motherboard - 10 -
Rear Panel I/O 1 PS/2 keyboard port
1 PS/2 mouse port
1 parallel port
1 VGA port
1 COMA port
4 USB 2.0/1.1 ports
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 Micro ATX form factor; 24.4cm x 22.0cm
(Note 3)
English
(Note 1) For further CPU support information, please go to GIGABYTE's website.
(Note 2) The GA-8I945GZME-RH supports up to PCI Express x4 mode. (please refer to the VGA cards
support list on page 16)
(Note 3) EasyTune functions may vary depending on different motherboards.
Hardware Installation- 11 -
1-3 Installation of the CPU and CPU Cooler
English
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 heatsink.
4. Please make sure the heatsink 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 cor-
ner 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-8I945GZME-RH Motherboard - 12 -
Fig. 4
Once the CPU is
properly inserted,
please replace the
plastic covering and
push the metal lever
back into its original
position.
1-3-2 Installation of the Heatsink
English
Male Push Pin
The top of Female Push Pin
Female Push Pin
Fig.1
Please apply an even layer of heatsink paste on
the surface of the installed CPU.
Fig. 3
Place the heatsink 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 heatsink, 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 heatsink installation
section of the user manual)
Fig. 6
Finally, please attach the power connector of the
heatsink to the CPU fan header located on the
motherboard.
The heatsink may adhere to the CPU as a result of hardening of the heatsink paste.To prevent
such an occurrence, it is suggested that either thermal tape rather than heat sink paste be used
for heat dissipation or using extreme care when removing the heatsink.
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-8I945GZME-RH Motherboard - 14 -
Dual Channel Memory Configuration
The GA-8I945GZME-RH supports the Dual Channel Technology. After operating the Dual Channel Technology, the bandwidth of Memory Bus will
double.
Due to CPU limitation, if you wish to operate the Dual Channel Technology, follow the guidelines below:
1. Dual Channel mode will not be enabled if only one memory module is installed.
2. To enable Dual Channel mode with two memory modules (it is recommended to use memory
modules of identical brand, size, chips, and speed), you must install them into DIMM sockets
of the same color.
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:
English
Please carefully pull out the small whitedrawable bar at the end of the PCI
Express x16 slot when you try to install/
uninstall the VGA 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 small white-drawable bar.
To install a VGA card or to release an
installed card, users can also press the
latch on the back of the drawable bar as
the picture to the left shows.
Hardware Installation- 15 -
English
1-5-1 Graphics Card Support List
(The items below are all supported under the Windows XP operating system. When using an
add-on graphics card, please first delete the onboard graphics driver before installing the driver
for the add-on graphics card.)
Figure 1. PCI Express x16 Cards
Graphics Chip Maker Model Name
Nvidia Gigabyte GV-NX53128D
Gigabyte GV-NX57128D
Gigabyte GV-NX59128D
Gigabyte GV-NX62128D
Gigabyte GV-NX66256D
Gigabyte GV-NX66T128VP
Gigabyte GV-NX66T128D
Gigabyte GV-NX68T256DH
Gigabyte GV-NX55128DP
Gigabyte GV-NX68U256D
Gigabyte GV-NX62TC256D
Gigabyte GV-NX62TC128D
Gigabyte GV-NX66L128DP
Gigabyte GV-NX68256D
Gigabyte GV-NX78X256V-B
Gigabyte GV-NX78T256V-B
Gigabyte GV-NX79T256DP-RH
Gigabyte GV-NX76G256D-RH
Gigabyte GV-NX73G128D-RH
Gigabyte GV-NX73L128D-RH
Nvidia P502/P602
Nvidia 7900GTX
ASUS EN6600/TD/128
MSI NX6800GT-TD256E
WinFast PX6600GT TDH
ATi Gigabyte GV-RX30S128D
Gigabyte GV-RX60P128D
Gigabyte GV-RX60X128V
Gigabyte GV-RX70128D
Gigabyte GV-RX70P128D
Gigabyte GV-RX80T256V
Gigabyte GV-RX80L256V
Gigabyte GV-RX80256D
Gigabyte GV-RX30HM128D
Gigabyte GV-RX55128D
Gigabyte GV-RX85T256V-B
Gigabyte GV-RC850T256D-B
Gigabyte GV-RX13P256D-RH
Gigabyte GV-RX16P256D-RH
Gigabyte GV-RX18L256V-B
Gigabyte GV-RX18T512V-B
ASUS AX800XT
ASUS AX700PRO
MSI RX600 XT-TD128
GA-8I945GZME-RH 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).
Parallel Port
The parallel port allows connection of a printer, scanner and other peripheral devices.
Serial Port (COMA)
Devices like mouses, modems, and etc. can be connected to Serial port.
VGA Port
Monitor can be connected to VGA 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
4
9
13
11
15
12
1) ATX_12V
2) ATX (Power Connector)
3) CPU_FAN
4) SYS_FAN
5) IDE
6) FDD
7) SATAII0 / SATAII1 /S ATAII2 / SATAII3
8) PWR_LED
9) F_AUDIO
3
14 17
8
10) F_PANEL
11) CD_IN
12) SPDIF_IO
13) HDA_SUR
14) F_USB1 / F_USB2
15) COMB
16) C I
17) CLR_CMOS
18) BAT
2
5
6
7
18
16
10
GA-8I945GZME-RH Motherboard - 18 -
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.
Pin No. Definition
2
4
3
1
1 GND
2 GND
3 +12V
4 +12V
English
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)
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.
Pin No. Definition
1
1 GND
CPU_FAN
1
2 +12V
3 Sense
4 Speed Control
(Only for CPU_FAN)
SYS_FAN
5) IDE (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.
GA-8I945GZME-RH Motherboard - 20 -
40
39
2
1
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
34
2
33
1
7) SATAII0 / SATAII1 / SATAII2 / SATAII3 (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.
SATAII2
1
7
7
1
1
7
SATAII3
SATAII1SATAII0
Pin No. Definition
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
7
1
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.
910
2
1
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
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 65 about the software
settings.
GA-8I945GZME-RH Motherboard - 22 -
1 MIC
2 GND
3 MIC Power
4NC
5 Line Out (R)
6NC
7NC
8 No Pin
9 Line Out (L)
10 NC
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
2
1
HD (IDE Hard Disk Active LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
SPEAK (Speaker Connector) Pin 1: Power
Pin 2- Pin 3: NC
Pin 4: Data(-)
RES (Reset Switch) Open: Normal
Close: Reset Hardware System
PW (Power Switch) Open: Normal
Close: Power On/Off
MSG (Message LED/Power/Sleep LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
NC NC
Speaker Connector
Power
Switch
PW+
MSG+
PW-
SPEAK+
MSG-
HD-
RES+
NC
HD+
RES-
Reset Switch
IDE Hard Disk Active LED
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
2 GND
1
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.
GA-8I945GZME-RH Motherboard - 24 -
1
5
62
Pin No. Definition
1 Power
2 No Pin
3 SPDIF
4 SPDIFI
5 GND
6 GND
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