Intel D945GPM User Manual

Intel® Desktop Board D945GPM Product Guide

Order Number: D21842-002

Revision History

Revision Revision History Date

-001

-002

If an FCC declaration of conformity marking is present on the board, the following statement applies:

First release of the Intel

Second release of the Intel

FCC Declaration of Conformity

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

For questions related to the EMC performance of this product, contact:

Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124 1-800-628-8686

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 instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not 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 following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment to an outlet on a circuit other than the one to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Any changes or modifications to the equipment not expressly approved by Intel Corporation could void the user’s authority to operate the equipment.

Tested to comply with FCC standards for home or office use.

Canadian Department of Communications Compliance Statement

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

Le présent appareil numerique német pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la classe B prescrites dans le Réglement sur le broullage radioélectrique édicté par le ministére des Communications du Canada.

Disclaimer

Information in this document is provided in connection with Intel® products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice.

Desktop Board D945GPM may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request.

Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.

Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be obtained from Intel Corporation by going to the World Wide Web site at: http://www.intel.com/ or by calling 1-800-548-4725.

Intel, Pentium, and Celeron are registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.

* Other names and brands may be claimed as the property of others.

Desktop Board D945GPM Product Guide

November 2005

May 2006

Preface

This Product Guide gives information about board layout, component installation, BIOS update, and regulatory requirements for Intel

Desktop Board D945GPM.

Intended Audience

The Product Guide is intended for technically qualified personnel.

Intended Uses

All Intel desktop boards are evaluated as Information Technology Equipment (I.T.E.) for use in personal computers (PC) for installation in homes, offices, schools, computer rooms, and similar locations. The suitability of this product for other PC or embedded non-PC applications or other environments, such as medical, industrial, alarm systems, test equipment, etc. may not be supported without further evaluation by Intel.

Information Layout

The chapters in this Product Guide are arranged as follows:

Desktop Board Features: a summary of product features

1 2

Installing and Replacing Desktop Board Components: instructions on how to install the desktop

board and other hardware components

Updating the BIOS: instructions on how to update the BIOS Configuring for RAID (Intel® Matrix Storage Technology) Requires Serial ATA (SATA Hard

Drives: information about configuring your system for RAID Intel® Quick Resume Technology Driver (Intel® QRTD): information about installing and

configuring Intel Quick Resume Technology Driver

A Error Messages and Indicators: information about BIOS error messages and beep codes B Regulatory Compliance: information about safety and EMC regulations, and product

certifications

Conventions

The following conventions are used in this manual:

CAUTION

Cautions warn the user about how to prevent damage to hardware or loss of data.

NOTE

Notes call attention to important information.

iii

Intel Desktop Board D945GPM Product Guide

Terminology

The table below gives descriptions to some common terms used in the product guide.

Term Description

GB Gigabyte (1,073,741,824 bytes)

GHz Gigahertz (one billion hertz)

KB Kilobyte (1024 bytes)

MB Megabyte (1,048,576 bytes)

Mbit Megabit (1,048,576 bits)

MHz Megahertz (one million hertz)

Box Contents

• Intel Desktop Board D945GPM

• I/O shield

• One ATA-66/100 cable

• Two locking Serial ATA cables

• One diskette drive cable

• One VGA port cover

• Quick Reference poster

• Configuration and battery caution statement label

• Intel

• Intel Express Installer software DVD-ROM

• Intel

Express Installer driver CD-ROM

Matrix Storage Technology floppy diskette

Contents

1 Desktop Board Features

Supported Operating Systems ............................................................................................10

Desktop Board Components ...............................................................................................11

Processor............................................................................................................................13

Main Memory ......................................................................................................................14

Intel® 945G Express Chipset...............................................................................................15

Graphics Subsystem ...........................................................................................................15

Audio Subsystem ................................................................................................................15

Input/Output (I/O) Controller................................................................................................16

LAN Subsystem ..................................................................................................................16

LAN Subsystem Software...........................................................................................16

RJ-45 LAN Connector LEDs.......................................................................................16

Hi-Speed USB 2.0 Support..................................................................................................17

Enhanced IDE Interface ......................................................................................................17

Serial ATA...........................................................................................................................17

Expandability.......................................................................................................................18

BIOS ...................................................................................................................................18

Serial ATA and IDE Auto Configuration ......................................................................18

PCI and PCI Express Auto Configuration ...................................................................18

Security Passwords....................................................................................................18

Chassis Intrusion.................................................................................................................19

Power Management Features .............................................................................................19

ACPI...........................................................................................................................19

Power Connectors......................................................................................................19

Fan Connectors..........................................................................................................19

Fan Speed Control (Intel® Precision Cooling Technology)..........................................19

Suspend to RAM (Instantly Available PC Technology) ...............................................20

Wake from USB..........................................................................................................21

Wake from PS/2 Keyboard/Mouse..............................................................................21

PME# Wakeup Support..............................................................................................21

Speaker...............................................................................................................................21

Battery.................................................................................................................................21

Real-Time Clock..................................................................................................................21

2 Installing and Replacing Desktop Board Components

Before You Begin................................................................................................................23

Installation Precautions .......................................................................................................24

Installation Instructions........................................................................................................24

Ensure Electromagnetic Compatibility (EMC) Compliance..........................................24

Chassis and Component Certifications.......................................................................25

Prevent Power Supply Overload.................................................................................25

Place Battery Marking ................................................................................................25

Installing the I/O Shield .......................................................................................................26

Installing and Removing the Desktop Board........................................................................27

Intel Desktop Board D945GPM Product Guide

Installing and Removing a Processor ..................................................................................28

Installing a Processor .................................................................................................28

Installing the Processor Fan Heat Sink.......................................................................31

Connecting the Processor Fan Heat Sink Cable.........................................................31

Removing the Processor ............................................................................................31

Installing and Removing Memory ........................................................................................32

Installing DIMMs.........................................................................................................34

Removing DIMMs.......................................................................................................35

Installing and Removing a PCI Express* x16 Card..............................................................36

Installing a PCI Express x16 Card ..............................................................................36

Removing the PCI Express x16 Card .........................................................................36

Connecting the IDE Cable...................................................................................................37

Connecting the Serial ATA (SATA) Cable ...........................................................................38

Connecting Internal Headers...............................................................................................39

Installing a Front Panel Audio Solution for Intel® High Definition Audio.......................40

Connecting IEEE 1394a Headers...............................................................................41

Connecting the Front Panel Header ...........................................................................41

Connecting Hi-Speed USB 2.0 Headers.....................................................................41

Connecting Fan and Power Cables.....................................................................................42

Connecting Fan Cables ..............................................................................................42

Connecting Power Cables ..........................................................................................43

Other Connectors................................................................................................................44

Setting the BIOS Configuration Jumper...............................................................................45

Clearing Passwords ............................................................................................................46

3 Updating the BIOS

Updating with the Intel® Express BIOS Update Utility..........................................................53

Updating the Iflash BIOS Update Utility...............................................................................54

Obtaining the BIOS Update File..................................................................................54

Updating the BIOS......................................................................................................54

Recovering the BIOS..................................................................................................55

4 Configuring Intel® Matrix Storage Technology (RAID) Requires Serial

ATA (SATA) Hard Drives

Configuring the BIOS for Intel Matrix Storage Technology..........................................57

Creating Your RAID Set (for systems with more than one SATA hard drive) ..............57

Loading the Intel Matrix Storage Technology RAID Drivers and Software ..................58

Setting Up a “RAID Ready” System............................................................................58

5 Intel® Quick Resume Technology Driver (Intel® QRTD)

Overview.............................................................................................................................59

Installation and Configuration..............................................................................................59

A Error Messages and Indicators

BIOS Beep Codes...............................................................................................................63

BIOS Error Messages .........................................................................................................63

B Regulatory Compliance

Safety Regulations..............................................................................................................65

European Union Declaration of Conformity Statement ........................................................65

Product Ecology Statements ...............................................................................................67

Lead-Free Desktop Board ..........................................................................................69

EMC Regulations ................................................................................................................70

Product Certification Markings (Board Level) ......................................................................72

Figures

1. Desktop Board D945GPM Components .......................................................................11

2. LAN Port LED Locations ...............................................................................................16

3. Location of the Standby Power Indicator.......................................................................20

4. Installing the I/O Shield.................................................................................................26

5. Desktop Board D945GPM Mounting Screw Hole Locations..........................................27

6. Lift Socket Lever...........................................................................................................28

7. Lift the Load Plate and Don’t Touch the Socket Contacts .............................................28

8. Remove the Protective Socket Cover ...........................................................................29

9. Remove the Processor from the Protective Processor Cover/Do Not Touch.................29

10. Install Processor...........................................................................................................30

11. Close the Load Plate ....................................................................................................30

12. Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector ........31

13. Dual Configuration Example 1 ......................................................................................32

14. Dual Configuration Example 2 ......................................................................................32

15. Dual Configuration Example 3 ......................................................................................33

16. Installing a DIMM..........................................................................................................34

17. Inserting a PCI Express x16 Card and Covering the Back Panel VGA Port ..................36

18. Connecting the IDE Cable ............................................................................................37

19. Connecting the Serial ATA Cable .................................................................................38

20. Internal Headers ...........................................................................................................39

21. Location of Fan Headers...............................................................................................42

22. Connecting Power Supply Cables.................................................................................43

23. Location of Other Connectors.......................................................................................44

24. Location of the BIOS Configuration Jumper..................................................................45

25. Removing the Battery ...................................................................................................51

26. F2 Key ..........................................................................................................................53

Contents

vii

Intel Desktop Board D945GPM Product Guide

Tables

1. Feature Summary...........................................................................................................9

2. Desktop Boards D945GPM Components......................................................................12

3. Power Supply Requirements.........................................................................................13

4. Desktop Board D945GPM Memory Configurations.......................................................14

5. RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs ..........................................17

6. Front Panel Audio Header Signal Names for Intel High Definition Audio.......................40

7. AC ’97 Audio Header Signal Names .............................................................................40

8. IEEE 1394a Header Signal Names...............................................................................41

9. Front Panel Header Signal Names................................................................................41

10. Hi-Speed USB 2.0 Header Signal Names.....................................................................41

11. Jumper Settings for the BIOS Setup Program Modes ...................................................45

12. Beep Codes..................................................................................................................63

13. BIOS Error Messages...................................................................................................63

14. Safety Regulations........................................................................................................65

15. Lead-Free Board Markings ...........................................................................................69

16. EMC Regulations..........................................................................................................70

17. Product Certification Markings ......................................................................................72

viii

1 Desktop Board Features

This chapter briefly describes the main features of Intel® Desktop Board D945GPM. Table 1 summarizes the major features of the desktop board.

Table 1. Feature Summary

Form Factors

Processor

Main Memory • Four 240-pin, 1.8 V SDRAM Dual Inline Memory Module (DIMM) sockets

Chipset

Graphics

Audio • Intel 945G Express Chipset

Expansion Capabilities

Peripheral Interfaces

MicroATX (9.6-inches x 9.6-inches)

Support for an Intel

• 667/533/400 MHz single or dual channel DDR2 SDRAM interface

• Designed to support up to 4 GB of system memory

NOTE: System resources (such as PCI and PCI Express*) require physical memory

address locations that reduce available memory addresses above 3 GB. This may result in less than 4 GB of memory being available to the operating system and applications. For the latest list of tested memory, refer to the Intel World Wide Web site at: http://support.intel.com/support/motherboards/desktop/

Intel

945G Express Chipset consisting of:

• Intel

• Intel® 82801GH I/O Controller Hub (ICH7DH) supporting Intel® Matrix Storage

• Serial Peripheral Interface (SPI) Flash or Firmware Hub (FWH)

Intel 945G Express Chipset with Intel

• Intel® High Definition Audio interface

• SigmaTel* codec

• Two PCI bus add-in card connectors (SMBus routed to PCI bus 2)

• One PCI Express x16 connector

• One PCI Express x1 connector

• Up to eight USB 2.0 ports

• Up to three IEEE 1394a ports

• Intel

• Four Serial ATA (SATA) channels (3.0 Gb/s), via the ICH7DH, one device per

• One IDE interface with ATA-66/100 support (two devices)

• One VGA connector

• One diskette drive interface

• One serial port

• PS/2* keyboard and mouse ports

82945G Graphics and Memory Controller Hub (GMCH) with Direct Media

Interface

Technology

⎯ Four ports routed to the back panel

⎯ Four ports routed to two USB headers

⎯ One port routed to the back panel

⎯ Two ports routed to two IEEE 1394a headers

82573L Gigabit Ethernet Controller with an RJ-45 connector

channel

processor in the LGA775 package

Graphics Media Accelerator 950

continued

Intel Desktop Board D945GPM Product Guide

Table 1. Feature Summary (continued)

BIOS

Power Management • Support for Advanced Configuration and Power Interface (ACPI)

Hardware Management Hardware monitor with:

• Intel

• 4 Mbit symmetrical flash memory

• Support for SMBIOS

• Intel

• Suspend to RAM (STR)

• Wake on USB, PCI, PCI Express, PS/2, LAN, and front panel

• Three fan sensing inputs used to monitor fan activity

• Remote diode temperature sensing

• Intel

• Voltage sensing to detect out of range values

Platform Innovation Framework for extensible firmware interface

Rapid BIOS Boot

Express BIOS Update

Precision Cooling Technology fan speed control

Related Links:

For more information about desktop board D945GPM, including the Technical Product Specification (TPS), BIOS updates, and device drivers, go to:

http://support.intel.com/support/motherboards/desktop/

Supported Operating Systems

The desktop board supports the Microsoft Windows* XP Media Center Edition 2005 Update Rollup 2 operating system.

Desktop Board Features

Desktop Board Components

Figure 1 shows the approximate location of the major components on desktop board D945GPM.

IEEE 1394a

Line In

Optical Line Out

(Toslink)

Intel

82945G

(GMCH)

Intel

82801

(ICH7DH)

Channel B DIMM 0

Channel B DIMM 1

Channel A DIMM 0

Channel A DIMM 1

OM18101

Figure 1. Desktop Board D945GPM Components

Intel Desktop Board D945GPM Product Guide

Table 2. Desktop Boards D945GPM Components

Label Description

A Front panel audio header

B PCI bus add-in card connectors

C PCI Express x16 connector

D 12 V processor core voltage connector (2x2)

E Rear fan (3-pin, fan speed control)

F Processor socket

G Processor fan header (4-pin, fan speed control)

H Main power connector (2x12)

I Diskette drive connector

J IDE connector

K Front chassis fan header (fan speed control)

L BIOS configuration jumper

M Serial ATA connectors (four)

N Alternate power LED header

O Front panel header

P Hi-speed USB 2.0 header

Q Chassis intrusion header

R Hi-speed USB 2.0 header

S IEEE 1394 headers (two)

T PCI Express x1 connector

Related Links:

Go to the following links for more information about:

• Desktop board D945GPM

http://www.intel.com/design/motherbd http://support.intel.com/support/motherboards/desktop

• Supported processors

• Audio software and utilities

• LAN software and drivers

http://support.intel.com/support/motherboards/desktop http://www.intel.com/design/motherbd http://www.intel.com/design/motherbd

Desktop Board Features

Processor

CAUTION

Failure to use the appropriate power supply (see Table 3) and/or not connecting the 12 V (2x2) power connector to the desktop board may result in damage to the board, or the system may not function properly.

Table 3. Power Supply Requirements

Platform Compatibility Guide Power Supply Requirements

05B 12V2 rating of 16 A continuous and 19 A peak current for 10mS

05A 12V2 rating of 13 A continuous and 16.5 A peak current for 10mS

04B or 04A ATX12V (version 2.0 or greater) compliant power supply

The desktop board supports an Intel processor in the LGA775 package. The processor connects to the desktop board through the LGA775 socket. Processors are not included with the desktop board and must be purchased separately. The supported processors list for desktop board D945GPM is located on the web at:

http://support.intel.com/support/motherboards/desktop/

Related Links:

Go to the following links or pages for more information about:

• Instructions on installing or upgrading the processor, page

• The location of the two power connectors, page

28 in Chapter 2

42 in Chapter 2

Intel Desktop Board D945GPM Product Guide

Main Memory

NOTE

To be fully compliant with all applicable Intel® SDRAM memory specifications, the board should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. If your memory modules do not support SPD, you will see a notification to this effect on the screen at power up. The BIOS will attempt to configure the memory controller for normal operation.

The desktop board supports dual or single channel memory configurations defined in Table 4.

Table 4. Desktop Board D945GPM Memory Configurations

Memory Speed FSB frequency (MHz) Memory Speed (MHz)

DDR2 667

DDR2 533

• Four 240-pin Double Data Rate 2 (DDR2) SDRAM Dual Inline Memory Module (DIMM) connectors with gold-plated contacts

• Unbuffered, non-registered single or double-sided DIMMs

• Serial Presence Detect (SPD) memory only

• Non-ECC RAM

• 1.8 V memory

• Memory configuration listed below: ⎯ Up to 2.0 GB utilizing 256 Mb technology ⎯ Up to 4.0 GB utilizing 512 Mb or 1 Gb technology

1066 667

800 667

533 533

1066 533

800 533

533 533

800 400 DDR2 400

533 400

NOTE

System resources (such as PCI and PCI Express) require physical memory address locations that reduce available memory addresses above 3 GB. This may result in less than 4 GB of memory being available to the operating system and applications.

Related Links:

Go to the following links or pages for more information about:

• The latest list of tested memory,

• SDRAM specifications,

• Installing memory, page

http://www.intel.com/technology/memory/

32 in Chapter 2

http://support.intel.com/support/motherboards/desktop/

Desktop Board Features

Intel® 945G Express Chipset

The Intel 945G Express Chipset consists of the following devices:

• Intel 82945G Graphics and Memory Controller Hub (GMCH) with Digital Media Interface

• Intel 82801GH I/O Controller Hub (ICH7DH) supporting Intel Matrix Storage Technology

• Serial Peripheral Interface (SPI) Flash or Firmware Hub (FWH)

Related Links:

Go to the following link or pages for more information about:

• Audio drivers and utilities

• Installing the front panel audio solution, page

http://support.intel.com/support/motherboards/desktop/

40 in Chapter 2

Input/Output (I/O) Controller

The super I/O controller features the following:

• One serial port

• Serial IRQ interface compatible with serialized IRQ support for PCI systems

• PS/2-style mouse and keyboard interfaces

• Interface for one 1.2 MB or 1.44 MB diskette drive

• Intelligent power management, including a programmable wake up event interface

• PCI power management support

LAN Subsystem

The LAN has the following features:

• 10/100/1000 Gigabit Ethernet LAN (Intel® 82573L)

• Support for RJ-45 connector with status indicator LEDs

• Programmable transit threshold

• Configurable EEPROM that contains the MAC address

LAN Subsystem Software

For LAN software and drivers, refer to the D945GPM link on Intel’s World Wide Web site at:

http://support.intel.com/support/motherboards/desktop

RJ-45 LAN Connector LEDs

Two LEDs are built into the RJ-45 LAN port located on the back panel (see Figure 2).

OM17386

Figure 2. LAN Port LED Locations

Desktop Board Features

Table 5 describes the LED states when the board is powered up and the 10/100/1000 Gigabit Ethernet LAN subsystem is operating.

Table 5. RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs

LED LED Color LED State Indicates

Left Off LAN link is not established.

Blinking LAN activity is occurring.

Right

Green

On LAN link is established.

N/A Off 10 Mb/s data rate is selected.

Green On 100 Mb/s data rate is selected.

Yellow On 1000 Mb/s data rate is selected.

Hi-Speed USB 2.0 Support

NOTE

Computer systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use a shielded cable that meets the requirements for a full-speed USB device.

The desktop board supports up to eight USB 2.0 ports via the ICH7DH: four ports routed to the back panel and four routed to two internal USB 2.0 headers. USB 2.0 ports are backward compatible with USB 1.1 devices. USB 1.1 devices will function normally at USB 1.1 speeds.

USB 2.0 support requires both an operating system and drivers that fully support USB 2.0 transfer rates. Disabling Hi-Speed USB in the BIOS reverts all USB 2.0 ports to USB 1.1 operation. This may be required to accommodate operating systems that do not support USB 2.0.

Enhanced IDE Interface

The ICH7DH’s IDE interface handles the exchange of information between the processor and peripheral devices like hard disks, CD-ROM drives, and Iomega Zip* drives inside the computer. The interface supports:

• Up to two IDE devices (such as hard drives)

• ATAPI-style devices (such as CD-ROM drives)

• Older PIO Mode devices

• Ultra DMA-33 and ATA-66/100 protocols

• Laser Servo (LS-120) drives

Serial ATA

The desktop board supports four Serial ATA channels (3.0 Gb/s) via the ICH7DH, connecting one device per channel.

Intel Desktop Board D945GPM Product Guide

Expandability

The desktop boards support the following:

• One PCI Express x16 add-in card

• One PCI Express x1 add-in card

• Two PCI add-in cards

Related Links:

For information about installing the PCI Express x16 card, see page

36 in Chapter 2.

BIOS

The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI/PCI Express and IDE auto-configuration utilities, and the video BIOS. The BIOS is stored in the Serial Peripheral Interface (SPI) Flash or Firmware Hub.

The BIOS can be updated by following the instructions on page

Serial ATA and IDE Auto Configuration

53 in Chapter 3.

If you install a Serial ATA or IDE device (such as a hard drive) in your computer, the autoconfiguration utility in the BIOS automatically detects and configures the device for your computer. You do not need to run the BIOS Setup program after installing a Serial ATA or IDE device. You can override the auto-configuration options by specifying manual configuration in the BIOS Setup program.

PCI and PCI Express Auto Configuration

If you install a PCI/PCI Express add-in card in your computer, the PCI/PCI Express autoconfiguration utility in the BIOS automatically detects and configures the resources (IRQs, DMA channels, and I/O space) for that add-in card. You do not need to run the BIOS Setup program after you install a PCI/PCI Express add-in card.

Security Passwords

The BIOS includes security features that restrict whether the BIOS Setup program can be accessed and who can boot the computer. A supervisor password and a user password can be set for the BIOS Setup and for booting the computer, with the following restrictions:

• The supervisor password gives unrestricted access to view and change all Setup options. If only the supervisor password is set, pressing <Enter> at the password prompt of Setup gives the user restricted access to Setup.

• If both the supervisor and user passwords are set, you must enter either the supervisor password or the user password to access Setup. Setup options are then available for viewing and changing depending on whether the supervisor or user password was entered.

• Setting a user password restricts who can boot the computer. The password prompt is displayed before the computer is booted. If only the supervisor password is set, the computer boots without asking for a password. If both passwords are set, you can enter either password to boot the computer.

Desktop Board Features

Related Links:

For instructions on resetting the password, see

Clearing Passwords on page 46.

Chassis Intrusion

The board supports a chassis security feature that detects if the chassis cover has been removed. The security feature uses a mechanical switch on the chassis that can be connected to the chassis intrusion header on the desktop board. See intrusion header.

Figure 20 on page 39 for the location of the chassis

Power Management Features

Power management is implemented at several levels, including:

• Advanced Configuration and Power Interface (ACPI)

• Hardware support: ⎯ Power connectors ⎯ Fan connectors ⎯ Suspend to RAM (Instantly Available PC technology) ⎯ Wake from USB ⎯ Wake from PS/2 keyboard/mouse ⎯ PME# wakeup support

ACPI

ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with the desktop board requires an operating system that provides full ACPI support.

Power Connectors

The desktop board has two power connectors. See Figure 22 on page 43 for the location of the power connectors.

Fan Connectors

The desktop board has three fan connectors. One processor fan header (4-pin) and two chassis fan headers (3-pin). See

Figure 21 on page 42 for the location of the fan headers.

Fan Speed Control (Intel® Precision Cooling Technology)

Intel Precision Cooling Technology automatically adjusts the processor fan speed based on the processor thermal diode temperature and adjusts the chassis fan speeds depending on the system temperature. System fan noise may be reduced by operating controlled chassis and processor fans at the minimum necessary speeds.

The processor and chassis fan speed control features can be disabled independently through the desktop board BIOS. Disabling the processor fan speed control will result in the fan operating at full speed if it is not a self controlled fan. It is recommended that processor fan speed control remain enabled (default BIOS setting) when using the processor fan heat sink included with

boxed processors. Disabling the chassis fan speed control results in chassis fans always

Intel

Intel Desktop Board D945GPM Product Guide

operating at full speed. The chassis fan speed control feature should be disabled if a self-controlled chassis fan is attached to any controlled chassis fan header.

The overall system noise reduction will vary based on system configuration and environment.

Suspend to RAM (Instantly Available PC Technology)

CAUTIONS

For Instantly Available PC technology, the 5 V standby line for the power supply must be capable of delivering adequate +5 V standby current. Failure to provide adequate standby current when using this feature can damage the power supply and/or effect ACPI S3 sleep state functionality.

Power supplies used with this desktop board must be able to provide enough standby current to support the standard Instantly Available (ACPI S3 sleep state) configuration. If the standby current necessary to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity, the desktop board may lose register settings stored in memory.

Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-to-RAM) sleep state. While in the S3 sleep state, the computer will appear to be off. When signaled by a wake-up device or event, the system quickly returns to its last known awake state.

The desktop board’s standby power indicator, shown in to the system. This includes the memory modules and PCI bus connectors, even when the computer appears to be off.

Figure 3, is lit when there is standby power

If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the LED turning amber.

OM18102

Figure 3. Location of the Standby Power Indicator

Related Links:

For more information on current standby requirements for the desktop board, refer to the Technical Product Specification by going to the following link, finding the product, and selecting Product Documentation from the left-hand menu:

http://support.intel.com/support/motherboards/desktop/

Desktop Board Features

Wake from USB

NOTE

Wake from USB requires the use of a USB peripheral that supports wake from USB.

USB bus activity wakes the computer from an ACPI S1 or S3 state.

Wake from PS/2 Keyboard/Mouse

PS/2 keyboard/mouse activity wakes the computer from an ACPI S1 or S3 state.

PME# Wakeup Support

When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, or S5 state.

Speaker

A speaker is mounted on the desktop board. The speaker provides audible error code (beep code) information during the Power-On Self-Test (POST).

Battery

A battery on the desktop board keeps the values in CMOS RAM and the clock current when the computer is turned off. Go to page

47 for instructions on how to replace the battery.

Real-Time Clock

The desktop board has a time-of-day clock and 100-year calendar. The battery on the desktop board keeps the clock current when the computer is turned off.

Intel Desktop Board D945GPM Product Guide

+ 50 hidden pages

Intel D945GPM User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual