FCC-B Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the measures listed below. n n n n Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/ television technician for help.

Notice 1

The changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment.

Notice 2

Shielded interface cables and A.C. power cord, if any, must be used in order to comply with the emission limits. VOIR LA NOTICE DNSTALLATION AVANT DE RACCORDER AU RESEAU.
Micro-Star International MS-7267

G52-72671XJ

Copyright Notice
The material in this document is the intellectual property of MICRO-STAR INTERNATIONAL. We take every care in the preparation of this document, but no guarantee is given as to the correctness of its contents. Our products are under continual improvement and we reserve the right to make changes without notice.

Trademarks

All trademarks are the properties of their respective owners. AMD , Athlon AthlonXP, Thoroughbred and Duron are registered trademarks of AMD Corporation. Intel and Pentium are registered trademarks of Intel Corporation. PS/2 and OS /2 are registered trademarks of International Business Machines Corporation. Microsoft is a registered trademark of Microsoft Corporation. Windows 98/2000/NT/XP are registered trademarks of Microsoft Corporation. NVIDIA , the NVIDIA logo, DualNet, and nForce are registered trademarks or trademarks of NVIDIA Corporation in the United States and/or other countries. Netware is a registered trademark of Novell, Inc. Award is a registered trademark of Phoenix Technologies Ltd. AMI is a registered trademark of American Megatrends Inc. Kensington and MicroSaver are registered trademarks of the Kensington Technology Group. PCMCIA and CardBus are registered trademarks of the Personal Computer Memory Card International Association.

Revision History

Revision V4.1 Revision History Release for 945GCM5 V2 series (Intel 945GC & ICH7) Date April, 2007

Safety Instructions

n n n n n n n n n n n Always read the safety instructions carefully. Keep this User Manual for future reference. Keep this equipment away from humidity. Lay this equipment on a reliable flat surface before setting it up. The openings on the enclosure are for air convection hence protects the equipment from overheating. Do not cover the openings. Make sure the voltage of the power source and adjust properly 110/220V before connecting the equipment to the power inlet. Place the power cord such a way that people can not step on it. Do not place anything over the power cord. Always Unplug the Power Cord before inserting any add-on card or module. All cautions and warnings on the equipment should be noted. Never pour any liquid into the opening that could damage or cause electrical shock. If any of the following situations arises, get the equipment checked by a service personnel: - The power cord or plug is damaged. - Liquid has penetrated into the equipment. - The equipment has been exposed to moisture. - The equipment does not work well or you can not get it work according to User Manual. - The equipment has dropped and damaged. - The equipment has obvious sign of breakage. n Do not leave this equipment in an environment unconditioned, storage temperature above 60 C (140F), it may damage the equipment.

Layout

Top : mouse Bottom: keyboard

CPUFAN1

Top : Parallel Port Bottom: COM Port VGA Port

T: LAN jack B: USB ports

T: Line -I n M : Line-Ou t B: M ic T:RS-Ou t (opti onal) M:CS -Out (opt ional) B:SS-Out (o ptio nal)

Intel 945GC

I/O Chip

SYSFAN 1

PCI_E1

SYSFAN 2 SATA4

LAN Chip

BATT +

AUDIO Chip
JBAT1 JAU D1 CD_IN1 JSPD1 JFP2

PCI_E2

USB ports

PWRCONN1

SPECIFICATIONS

Processor Support

l Supports Intel Core2 Duo/ Pentium D/ Pentium 4/ Celeron D LGA 775 processors (For the latest information about CPU, please visit http://global.msi.com.tw/index.php?func=cpuform)

Supported FSB

l 800 / 533 MHz

Chipset

l North Bridge: Intel 945GC chipset l South Bridge: Intel ICH7 chipset

Memory Support

l DDR2 400/ 533/ 667 SDRAM (2GB Max) l 2 DDR2 DIMMs (240pin/ 1.8V) (For more information on compatible components, please visit http://global.msi.com.tw/index.php?func=testreport)
l Supports 10/100 Mb/s Fast Ethernet by Realtek RTL 8101E l Or Supports 10/100/1000 Mb/s Fast Ethermet by Realtek RTL 8111B
l Chip integrated by Realtek ALC883, supports HD 5.1-channel audio-out l Or chip integrated by Realtek ALC888, supports HD 7.1-channel audio-out l Vista Premium compliance
l 1 IDE port l Supports Ultra DMA 66/100 mode l Supports PIO, Bus Master operation mode
l 4 SATA ports by ICH7 chipset l Supports 4 SATA devices l Supports storage and data transfers at up to 300 MB/s

Floppy

l 1 floppy port l Supports 1 FDD with 360KB, 720KB, 1.2MB, 1.44MB and 2.88MB

Connectors

l Back panel - 1 parallel port supporting SPP/EPP/ECP mode - 1 PS/2 mouse port - 1 PS/2 keyboard port - 1 COM port - 1 VGA port - 4 USB 2.0 Ports - 1 LAN jack - 3 flexible audio jacks (for ALC883 audio chip) or 6 audio jacks (for ALC888 audio chip) l On-Board Pinheaders / Connectors - 2 USB 2.0 pinheaders - 1 CD-In connector - 1 Front Panel Audio pinheader - 1 SPDIF-Out pinheader - 1 Chassis Intrusion switch pinheader
l 1 PCI Express x16 slot l 1 PCI Express x1 slot l 2 PCI slots (Support 3.3V/ 5V PCI bus interface)

Form Factor

l Micro-ATX (24.5cm X 22.5 cm)

Mounting

l 6 mounting holes

REAR PANEL

The rear panel provides the following connectors:
Parallel Port Mouse LAN Li ne-In RS-Out (optional) Li ne-Out CS-Out (optional)

Keyboard

Serial Port

VGA Port

USB Ports

SS-Out (optional)

HARDWARE SETUP
This chapter tells you how to install the CPU, memory modules, and expansion cards, as well as how to setup the jumpers on the mainboard. It also provides the instructions on connecting the peripheral devices, such as the mouse, keyboard, etc. While doing the installation, be careful in holding the components and follow the installation procedures.
CPU & Cooler Installation Procedures for LGA775
When you are installing the CPU, make sure the CPU has a cooler attached on the top to prevent overheating. Meanwhile, do not forget to apply some thermal paste on CPU before installing the heat sink/cooler fan for better heat dispersion. Follow the steps below to install the CPU & cooler correctly. Wrong installation will cause the damage of your CPU & mainboard. Introduction to LGA 775 CPU The pin-pad side of LGA 775 CPU. The surface of LGA 775 CPU.
The CPU socket has a plastic cap on it to protect the contact from damage. Before you have installed the CPU, always cover it to protect the socket pin. Remove the cap from lever hinge side. The pins of socket reveal. Open the load lever. Lift the load lever up and open the load plate. After confirming the CPU direction for correct mating, put down the CPU in the socket housing frame. Be sure to grasp on the edge of the CPU base. Note that the alignment keys are matched.

2. 3. 4. 5. 6.

7. 8. 9.
Visually inspect if the CPU is seated well into the socket. If not, take out the CPU with pure vertical motion and reinstall. Cover the load plate onto the package. Press down the load lever lightly onto the load plate, and then secure the lever with the hook under retention tab.
10. Align the holes on the mainboard with the cooler. Push down the cooler until its four clips get wedged into the holes of the mainboard. 11. Press the four hooks down to fasten the cooler. Then rotate the locking switch (refer to the correct direction marked on it) to lock the hooks. 12. Turn over the mainboard to confirm that the clip-ends are correctly inserted.

Important: Read the CPU status in BIOS. Whenever CPU is not installed, always protect your CPU socket pin with the plastic cap covered to avoid damaging. Mainboard photos shown in this section are for demonstration of the CPU/cooler installation only. The appearance of your mainboard may vary depending on the model you purchase. According to the Intel North Bridge 945GC chipset spec, this board supports CPU of FSB 800MHz at maximum by default. However, you may let your board running at FSB 1066MHz (Core 2 Duo CPUs) by overclocking and adjusting the CPU FSB frequency in the BIOS : Enter BIOS setup menu and go to [Frequency/ Voltage Control][Adjust CPU FSB Frequency]. There you can adjust the value to [266] for the Core 2 Duo CPUs. Please be noted that this is over-spec, and this overclocking behavior is not recommended and not guaranteed.
Installing Memory Modules
1. 2. The memory module has only one notch on the center and will only fit in the right orientation. Insert the memory module vertically into the DIMM slot. Then push it in until the golden finger on the memory module is deeply inserted in the DIMM slot. You can barely see the golden finger if the memory module is properly inserted in the DIMM slot. The plastic clip at each side of the DIMM slot will automatically close.
Important: DDR2 memory modules are not interchangeable with DDR and the DDR2 standard is not backwards compatible. You should always install DDR2 memory modules in the DDR2 DIMM slots. To enable successful system boot-up, always insert the memory modules into the DIMM1 first.
ATX 24-Pin Power Connector: ATX1
This connector allows you to connect an ATX 24-pin power supply. To connect the ATX 24-pin power supply, make sure the plug of the power supply is inserted in the proper orientation and the pins are aligned. Then push down the power supply firmly into the connector. You may use the 20-pin ATX power supply as you like. If you like to use the 20-pin ATX power supply, please plug your power supply along with pin 1 & pin 13 (refer to the image at the right hand).
+3.3V -12V GND PS-ON # GND GND GND R es +5V +5V +5V GND
+3.3V +3.3V GN D +5V GN D +5V GN D PWR O K 5VSB +12V +12V +3.3V
ATX 12V Power Connector: PWRCONN1
This 12V power connector is used to provide power to the CPU. Important:

+12V GND

Make sure that all the connectors are connected to proper ATX power supplies to ensure stable operation of the mainboard. Power supply of 350 watts (and above) is highly recommended for system stability.
Floppy Disk Drive Connector: FDD1
This connector supports 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB floppy disk drive.

IDE Connector: IDE1

This connector supports IDE hard disk drives, optical disk drives and other IDE devices. Important: If you install two IDE devices on the same cable, you must configure the drives to cable select mode or separately to master / slave mode by setting jumpers. Refer to IDE device documentation supplied by the vendors for jumper setting instructions.

Serial ATA Connector: SATA1/2/3/4
This connector is a high-speed Serial ATA interface port. Each connector can connect to one Serial ATA device. Important: Please do not fold the Serial ATA cable into 90-degree angle. Otherwise, data loss may occur during transmission.
Fan Power Connectors: CPUFAN1, SYSFAN1 & SYSFAN2
The fan power connectors support system cooling fan with +12V. When connecting the wire to the connectors, always note that the red wire is the positive and should be connected to the +12V; the black wire is Ground and should be connected to GND. If the mainboard has a System Hardware Monitor chipset on-board, you must use a specially designed fan with speed sensor to take advantage of the CPU fan control.
Control Sensor +12V GND Sensor +12V GND
Front USB Connector: JUSB1/ JUSB2
This connector, compliant with Intel I/O Connectivity Design Guide, is ideal for connecting high-speed USB interface peripherals such as USB HDD, digital cameras, MP3 players, printers, modems and the like.
USB1+ USB1(2)VCC (1)VCC USB0- GND USB0+ GND N.C.(10) Key,no pin(9)
S/PDIF-Out Connector: JSPD1
This connector is used to connect S/PDIF (Sony & Philips Digital Interconnect Format) interface for digital audio transmission.

VCC SPDIF GND

CD-In Connector: CD_IN1
This connector is provided for external audio input.

L GND R

Front Panel Audio Connector: JAUD1
This connector allows you to connect the front panel audio and is compliant with Intel I/O Connectivity Design Guide.
MIC2_JD VCC5 (2)GND (1)MIC_L NC Line_JD(10) Line-out_L(9) MIC_R Front to Sense Line-out_R
Front Panel Connectors: JFP1, JFP2
These connectors are for electrical connection to the front panel switches and LEDs. The JFP1 is compliant with Intel Front Panel I/O Connectivity Design Guide.

Speaker 2 1

Power LED

Power Switch Power LED

Reset Switch HDD LED
Chassis Intrusion Connector: JCI2
This connector connects to the chassis intrusion switch cable. If the chassis is opened, the chassis intrusion mechanism will be activated. The system will record this status and show a warning message on the screen. To clear the warning, you must enter the BIOS utility and clear the record.

CINTRU GND

Clear CMOS Jumper: JBAT1
There is a CMOS RAM onboard that has a power supply from an external battery to keep the data of system configuration. With the CMOS RAM, the system can automatically boot OS every time it is turned on. If you want to clear the system configuration, set the jumper to clear data. Important: You can clear CMOS by shorting 2-3 pin while the system is off. Then return to 1-2 pin position. Avoid clearing the CMOS while the system is on; it will damage the mainboard.

Keep Data 3 Clear Data

PCI (Peripheral Component Interconnect) Express Slot
The PCI Express slot supports the PCI Express interface expansion card. The PCI Express x 16 supports up to 4.0 GB/s transfer rate.
The PCI Express x 1 supports up to 250 MB/s transfer rate.
PCI (Peripheral Component Interconnect) Slot
The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that comply with PCI specifications. Important: When adding or removing expansion cards, make sure that you unplug the power supply first. Meanwhile, read the documentation for the expansion card to configure any necessary hardware or software settings for the expansion card, such as jumpers, switches or BIOS configuration.
PCI Interrupt Request Routing
The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hardware lines over which devices can send interrupt signals to the microprocessor. The PCI IRQ pins are typically connected to the PCI bus pins as follows: Order1 PCI Slot1 PCI Slot2 INT B# INT C# Order2 INT C# INT D# Order3 INT D# INT A# Order4 INT A# INT B#

BIOS Setup

Power on the computer and the system will start POST (Power On Self Test) process. When the message below appears on the screen, press <DEL> key to enter Setup. Press DEL to enter SETUP If the message disappears before you respond and you still wish to enter Setup, restart the system by turning it OFF and On or pressing the RESET button. You may also restart the system by simultaneously pressing <Ctrl>, <Alt>, and <Delete> keys.

Main Page

Standard CMOS Features Use this menu for basic system configurations, such as time, date etc. Advanced BIOS Features Use this menu to setup the items of special enhanced features. Integrated Peripherals Use this menu to specify your settings for integrated peripherals. Power Management Setup Use this menu to specify your settings for power management. PNP/PCI Configurations This entry appears if your system supports PnP/PCI. H/W Monitor This entry shows the status of your CPU, fan, warning for overall system status. Frequency/Voltage Control Use this menu to specify your settings for frequency/voltage control.

Load Fail-Safe Defaults Use this menu to load the BIOS default values that are factory settings for system operations. Load Optimized Defaults Use this menu to load factory default settings into the BIOS for stable system performance operations. BIOS Setting Password Use this menu to set BIOS setting Password. Save & Exit Setup Save changes to CMOS and exit setup. Exit Without Saving Abandon all changes and exit setup.
Frequency/Voltage Control
Current CPU Frequency It shows the current frequency of CPU. Read-only. Current DRAM Frequency It shows the current frequency of Memory. Read-only. Adjust CPU FSB Frequency This item allows you to manually adjust the CPU FSB frequency. Adjust CPU Ratio This item allows you to adjust the CPU ratio. Adjusted CPU Frequency It shows the adjusted CPU frequency (FSB x Ratio). Read-only. Advance DRAM Configuration > DRAM CAS# Latency The field controls the CAS latency, which determines the timing delay before DRAM starts a read command after receiving it. [2T] increases system performance while [2.5T] provides more stable system performance. Setting to [By SPD] enables DRAM CAS# Latency automatically to be determined by BIOS based on the configurations on the SPD (Serial Presence Detect) EEPROM on the DRAM module. FSB/Memory Ratio This setting controls the ratio of CPU FSB Clock & Memory Frequency to enable the CPU & memory to run at different frequency combinations. Please note that the setting options vary according to the CPU FSB Frequency preset. Adjusted DDR Memory Frequency It shows the adjusted DDR Memory frequency. Read-only. Adjust PCI Frequency This item allows you to select the PCI clock frequency (in MHz) and overclock by adjusting the PCI clock to a higher frequency.
Adjust PCIE Frequency This item allows you to select the PCI Express clock frequency (in MHz) and overclock by adjusting the PCI Express clock to a higher frequency. Auto Disable DIMM/PCI Frequency When set to [Enabled], the system will remove (turn off) clocks from empty DIMM and PCI slots to minimize the electromagnetic interference (EMI). Memory/PCI Express Voltage These items allow you to adjust the Memory/PCI Express voltage. Adjusting the voltage can increase the speed. Any changes made to this setting may cause a stability issue, so changing the voltage for long-term purpose is NOT recommended. Spread Spectrum When the motherboards clock generator pulses, the extreme values (spikes) of the pulses create EMI (Electromagnetic Interference). The Spread Spectrum function reduces the EMI generated by modulating the pulses so that the spikes of the pulses are reduced to flatter curves. If you do not have any EMI problem, leave the setting at Disabled for optimal system stability and performance. But if you are plagued by EMI, set to Enabled for EMI reduction. Remember to disable Spread Spectrum if you are overclocking because even a slight jitter can introduce a temporary boost in clock speed which may just cause your overclocked processor to lock up. Important: If you do not have any EMI problem, leave the setting at [Disabled] for optimal system stability and performance. But if you are plagued by EMI, select the value of Spread Spectrum for EMI reduction. The greater the Spread Spectrum value is, the greater the EMI is reduced, and the system will become less stable. For the most suitable Spread Spectrum value, please consult your local EMI regulation. Remember to disable Spread Spectrum if you are overclocking because even a slight jitter can introduce a temporary boost in clock speed which may just cause your overclocked processor to lock up.