GA-945GCMX-S2 (rev. 6.6)
GA-945GCM-S2
GA-945GCMX-S2
TM
Intel® Core
Intel® Pentium® D / Pentium® 4 / Celeron® D LGA775 Processor Motherboard
2 Extreme dual-core / Core
User's Manual
Rev. 6602
12ME-945CMX2R-6602R
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.
Mar. 23, 2007
GA-945GCMX-S2
Motherboard
Mar. 23, 2007
GA-945GCMX-S2
Motherboard
Jan. 12, 2007
GA-945GCM-S2
Motherboard
Jan. 12, 2007
GA-945GCM-S2
Motherboard
Copyright
© 2007 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
"Product User Manual".
For detailed information related to Gigabyte's unique features, please go to "Technology
Guide" section on Gigabyte's website to read or download the information you need.
For more product details, please click onto Gigabyte's website at www.gigabyte.com.tw
Table of Contents
Item Checklist ................................................................................................................. 7
Optional Accessories ...................................................................................................... 7
GA-945GCMX-S2 Motherboard Layout ......................................................................... 8
GA-945GCM-S2 Motherboard Layout ........................................................................... 9
Block Diagram .............................................................................................................. 10
Chapter 1 Hardware Installation ....................................................................................11
1-1 Considerations Prior to Installation ................................................................... 11
1-2 Feature Summary .......................................................................................... 12
1-3 Installation of the CPU and CPU Cooler ....................................................... 14
1-3-1 Installation of the CPU ......................................................................................... 14
1-3-2 Installation of the CPU Cooler ............................................................................ 15
1-4 Installation of Memory .................................................................................... 16
1-5 Installation of Expansion Cards ...................................................................... 18
1-6 I/O Back Panel Introduction ........................................................................... 19
1-7 Connectors Introduction .................................................................................. 20
Chapter 2 BIOS Setup ................................................................................................ 31
The Main Menu (For example: GA-945GCMX-S2 BIOS Ver. : F5a) ....................... 32
2-1 Standard CMOS Features ............................................................................. 34
2-2 Advanced BIOS Features .............................................................................. 36
2-3 Integrated Peripherals ..................................................................................... 38
2-4 Power Management Setup ............................................................................. 42
2-5 PnP/PCI Configurations ................................................................................. 44
2-6 PC Health Status ........................................................................................... 45
2-7 Frequency/Voltage Control ............................................................................. 47
2-8 Load Fail-Safe Defaults ................................................................................... 49
2-9 Load Optimized Defaults ................................................................................. 49
2-10 Set Supervisor/User Password ..................................................................... 50
2-11 Save & Exit Setup......................................................................................... 51
2-12 Exit Without Saving ....................................................................................... 51
- 5 -
Chapter 3 Install Drivers ............................................................................................. 53
3-1 Install Chipset Drivers .................................................................................... 53
3-2 Software Applications ..................................................................................... 54
3-3 Driver CD Information .................................................................................... 54
3-4 Hardware Information ..................................................................................... 55
3-5 Contact Us ..................................................................................................... 55
Chapter 4 Appendix ................................................................................................... 57
4-1 Unique Software Utilities ................................................................................ 57
4-1-1 EasyTune 5 Introduction ..................................................................................... 57
4-1-2 Xpress Recovery2 Introduction ......................................................................... 58
4-1-3 Flash BIOS Method Introduction ........................................................................ 60
4-1-4 2- / 4- / 6- / 8- Channel Audio Function Introduction ...................................... 64
4-2 Troubleshooting ............................................................................................... 69
- 6 -
Item Checklist
IDE Cable x 1 and 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 USB 2.0 Cable (Part Number: 12CR1-1UB030-51/R)
4 Ports USB 2.0 Cable (Part Number: 12CR1-1UB030-21/R)
S/PDIF In and Out Cable (Part Number: 12CR1-1SPINO-11/R)
SATA bracket (Part No. 12CF1-3SATPW-11R)
COM Port Cable (Part Number: 12CF1-1CM001-31/12CF1-1CM001-12R)
- 7 -
GA-945GCMX-S2 Motherboard Layout
KB_MS
COMA
VGA
R_USB
USB
AUDIO
RTL8110SC
CODEC
LPT
ATX_12V
LAN
SYS_FAN
F_AUDIO
PCIE_16
CD_IN
SPDIF_IO
COMB
PCIE_4
LGA775
Intel® 945
F_USB1
BIOS
CPU_FAN
PCI1
PCI2
F_USB2
GA-945GCMX-S2
DDRII1
Intel® ICH7
SATAII2
SATAII0
CLR_CMOS
DDRII2
IDE
SATAII3
BATTERY
SATAII1
F_PANELPWR_LED
IT8718
ATX
FDD
CI
- 8 -
GA-945GCM-S2 Motherboard Layout
KB_MS
COMA
VGA
R_USB
USB
AUDIO
RTL8110SC
CODEC
LPT
ATX_12V
LAN
SYS_FAN
F_AUDIO
PCIE_16
CD_IN
SPDIF_IO
COMB
LGA775
Intel® 945
F_USB1
CPU_FAN
PCI1
PCI2
PCI3
F_USB2
GA-945GCM-S2
Intel® ICH7
BIOS
DDRII1
SATAII2
SATAII0
CLR_CMOS
DDRII2
IDE
SATAII3
BATTERY
SATAII1
F_PANELPWR_LED
IT8718
ATX
FDD
CI
- 9 -
Block Diagram
PCIe CLK
(100 MHz)
PCIe CLK
(100 MHz)
PCI Express x16
PCI Express x4
1 PCI Express x4
PCI Bus
D-Sub
RTL
8110SC
RJ45
LAN
LGA775
Processor
Interface
Intel® 945
Intel® ICH7
CODEC
Host
CPU CLK+/-
(Note 1)
(333
/266/200/133 MHz)
DDRII 667/533 MHz DIMM
Dual Channel Memory
GMCH CLK
(Note 1)
(333
/266/200/133 MHz)
ATA-33/66/100 IDE Channel
BIOS
4 SATA 3Gb/s
8 USB Ports
IT8718
(Note 2)
Floppy
LPT Port
COM Ports
MIC
3 PCI
PCI CLK
(33 MHz)
2 PCI
PCI CLK
(33 MHz)
Line-In
Line-Out
SPDIF In
Side Speaker Out
Surround Speaker Out
SPDIF Out
PS/2 KB/Mouse
Center/Subwoofer Speaker Out
(Note 1) Enable use of a CoreTM 2 CPU with 1333 MHz FSB through overclocking. You must install the
FSB 1333 MHz Core
TM
2 CPU with DDR2 533 (or above) memory module(s).
(Note 2) Use of a 1066/800 MHz FSB CPU is required if you wish to install DDR2 667 MHz memory.
Only for
GA-945GCMX-S2.
Only for
GA-945GCM-S2
.
- 10 -
Chapter 1 Hardware 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- 11 -
English
1-2 Feature Summary
TM
CPU LGA775 for Intel® Core
Pentium® 4 / Celeron® D
L2 cache varies with CPU
Front Side Bus Supports 1333
Chipset Northbridge: Intel® 945 Express Chipset
Southbridge: Intel® ICH7
LAN Onboard RTL8110SC chip (10/100/1000 Mbit)
Audio Onboard Realtek ALC888 CODEC chip
Supports High Definition Audio
Supports 2 / 4 / 6 / 8 channel audio
Supports S/PDIF In/Out connection
Supports CD In connection
Storage Intel® ICH7 Southbrigde
- 1 FDD connector, allowing connection of 1 FDD device
- 1 IDE connector with Ultra ATA-33/66/100 support, allowing connection
of 2 IDE devices
- 4 SATA 3Gb/s connectors, allowing connection of 4 SATA 3Gb/s devices
O.S Support Microsoft Windows® XP/Vista
Memory 2 DDRII DIMM memory slots (supports up to 4 GB memory)
Supports dual channel DDRII 667/533 unbuffered DIMMs
Supports 1.8V DDRII DIMMs
Expanstion Slots 1 PCI Express x16 slot
1 PCI Express x4 slot
2 PCI 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 S/PDIF In/Out connector
2 USB 2.0/1.1 connectors for additional 4 ports by cables
1 COMB connector
1 Chassis Intrusion connector
1 power LED connector
2 Extreme dual-core / CoreTM 2 Duo / Pentium® D /
(Note 1)
/1066/800/533 MHz FSB
(Note 3)
(Note 2)
Only for
GA-945GCMX-S2.
Only for
GA-945GCM-S2
.
GA-945GCM(X)-S2 Motherboard - 12 -
Rear Panel I/O 1 PS/2 keyboard port
1 PS/2 mouse port
1 parallel port
1 serial port
1 D-Sub port
4 USB 2.0/1.1 ports
1 RJ-45 port
6 audio jacks (Line In / Line Out / MIC In/Surround Speaker Out (Rear
Speaker Out)/Center/Subwoofer Speaker Out/Side Speaker Out)
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
CPU smart fan control
BIOS 1 4 Mbit flash ROM
Use of licensed AWARD BIOS
PnP 1.0a, DMI 2.0, SM BIOS 2.3, ACPI 1.0b
Additional Features Supports @BIOS
Supports Download Center
Supports Q-Flash
Supports EasyTune (only supports Hardware Monitor function)
Supports Xpress Install
Supports Xpress Recovery2
Supports Xpress BIOS Rescue
Bundle Software Norton Internet Security (OEM revision)
Form Factor Micro ATX form factor; 22.0cm x 24.4cm
English
(Note 4)
(Note 1) Enable use of a CoreTM 2 CPU with 1333 MHz FSB through overclocking. You must install the
FSB 1333 MHz Core
TM
2 CPU with DDR2 533 (or above) memory module(s).
(Note 2) Due to Windows XP 32-bit operating system limitation, when more than 4 GB of physical
memory is installed, the actual memory size displayed will be less than 4 GB.
(Note 3) Use of a 1066/800 MHz FSB CPU is required if you wish to install DDR2 667 MHz memory.
(Note 4) EasyTune functions may vary depending on different motherboards.
Hardware Installation- 13 -
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-945GCM(X)-S2 Motherboard - 14 -
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 CPU 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.
Use extreme care when removing the CPU cooler because the thermal grease/tape between
the CPU cooler and CPU may adhere to the CPU. Inadequately removing the CPU cooler
may damage the CPU.
Hardware Installation- 15 -
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 DDR2 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
DDR2
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-945GCM(X)-S2 Motherboard - 16 -
Dual Channel Memory Configuration
The GA-945GCMX-S2/GA-945GCM-S2 supports the Dual Channel
Technology. After operating the Dual Channel Technology, the bandwidth of
memory bus will double.
The GA-945GCMX-S2/GA-945GCM-S2 includes 2 DIMM sockets.
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 DDR2 memory module is installed.
2. When enabling Dual Channel mode with two memory modules, it is recommended that
memory of the same capacity, brand, speed, and chips be used.
English
Hardware Installation- 17 -
English
1-5 Installation of Expansion Cards
To install your expansion card, follow the steps below.
1. Disconnect your system from its power source and read the expansion card's installation manual
before installing the expansion card in the computer.
2. Remove your computer's chassis cover, screws and slot bracket from the computer. Ground
yourself to prevent damage to your computer resulting from Electrostatic discharge (ESD).
3. Press the expansion card firmly into the expansion slot in the motherboard.
4. Make sure the metal contacts on the card are fully 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, configure required settings for the expansion card in system
BIOS Setup.
8. Install related driver in the operating system.
For example: Installing a PCI Express x16 VGA card:
When installing the graphics card, push down
on the top edge of the card until it is fully
inserted into the PCI Express x16 slot. Make
sure the card is securely seated in the slot
and does not rock.
GA-945GCM(X)-S2 Motherboard - 18 -
When removing the graphics card, gently push
back on the lever on the slot and then lift the
card straight out from the slot.
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
Connects to serial-based mouse or data processing devices.
D-Sub 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 support USB 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/
1000 Mbps.
Center/Subwoofer Speaker Out
The default Center/Subwoofer Speaker Out jack. Center/Subwoofer speakers can be connected to
Center/Subwoofer Speaker Out jack.
Surround Speaker Out (Rear Speaker Out)
The default Surround Speaker Out (Rear Speaker Out) jack. Rear surround speakers can be
connected to Surround Speaker Out (Rear Speaker Out) jack.
Side Speaker Out
The default Side Speaker Out jack. Surround side speakers can be connected to Side Speaker Out
jack.
Line In
The default Line In jack. Devices like CD-ROM, walkman etc. can be connected to Line In jack.
Line Out (Front Speaker Out)
The default Line Out (Front Speaker Out) jack. Stereo speakers, earphone or front surround
speakers can be connected to Line Out (Front Speaker Out) jack.
English
Hardware Installation- 19 -
MIC In
The default MIC In jack. Microphone must be connected to MIC In jack.
English
In addition to the default speakers settings, the ~ audio jacks can be reconfigured to perform
different functions via the audio software. Only microphones still MUST be connected to the
default Mic In jack ( ). Please refer to the 2-/4-/6-/8- channel audio setup steps for detailed
software configuration information.
1-7 Connectors Introduction
1
2
11
4
14
1613
12 15
8310
5
6
7
9
17
1) ATX_12V
2) ATX (Power Connector)
3) CPU_FAN
4) SYS_FAN
5) FDD
6) IDE
7) SATAII0 / 1 / 2 / 3
8) PWR_LED
9) BATTERY
GA-945GCM(X)-S2 Motherboard - 20 -
10) F_PANEL
11) F_AUDIO
12) CD_IN
13) SPDIF_IO
14) F_USB1 / F_USB2
15) COMB
16) CLR_CMOS
17) C I
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 power supply that provides a 24-pin
ATX power connector, 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
2
4
13
ATX_12V
12
24
131
ATX
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
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- 21 -
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(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 :
1
CPU_FAN
1
SYS_FAN
Pin No. Definition
1 GND
2 +12V / Speed Control
3 Sense
4 Speed Control
SYS_FAN :
Pin No. Definition
1 GND
2 +12V
3 Sense
5) FDD (Floppy 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: 360 KB, 720 KB, 1.2 MB, 1.44 MB and
2.88 MB. Before attaching the FDD cable, please take note of the foolproof groove in the FDD
connector.
GA-945GCM(X)-S2 Motherboard - 22 -
34
2
33
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