Intel® Desktop Board D945PWM Product Guide Order Number: D44265-001 Revision History Revision -001 Revision History First release of the Intel® Desktop Board D945PWM Product Guide. Date January 2006 If an FCC declaration of conformity marking is present on the board, the following statement applies: 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 D945PWM 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. Copyright © 2006, Intel Corporation. All rights reserved. Preface This Product Guide gives information about board layout, component installation, BIOS update, and regulatory requirements for Intel® Desktop Board D945PWM. Intended Audience The Product Guide is intended for technically qualified personnel. It is not intended for general audiences. Use Only for Intended Applications 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: 1 Desktop Board Features: a summary of product features 2 Installing and Replacing Desktop Board Components: instructions on how to install the desktop board and other hardware components 3 BIOS: instructions on how to update the BIOS A Error Messages and Indicators: information about BIOS error messages and beep codes B Regulatory Compliance: safety and EMC regulations, product certification 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 D945PWM Product Guide Terminology The table below gives descriptions to some common terms used in the product guide. Term GB GHz KB MB Mbit MHz Description Gigabyte (1,073,741,824 bytes) Gigahertz (one billion hertz) Kilobyte (1024 bytes) Megabyte (1,048,576 bytes) Megabit (1,048,576 bits) Megahertz (one million hertz) Box Contents · · · · · · · · · · · · Intel® Desktop Board D945PWM NVIDIA* GeForce* 6200 LE Graphics Card I/O shield One ATA-66/100 cable Two locking Serial ATA cables One diskette drive cable Audio port covers Intel® Express Installer Driver CD-ROM Intel Express Installer Software DVD One diskette with Intel® Matrix Storage Raid Driver Quick Reference poster Configuration and battery caution statement label iv Contents 1 Desktop Board Features Supported Operating Systems .............................................................................................. 10 Desktop Board Components ................................................................................................. 11 Processor .............................................................................................................................. 13 Main Memory ........................................................................................................................ 14 Intel® 945P 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 Use Only for Intended Applications.............................................................................. 26 Installing the I/O Shield ......................................................................................................... 26 Installing and Removing the Desktop Board ......................................................................... 27 v Intel Desktop Board D945PWM 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 USB 2.0 Headers ...................................................................................... 41 Connecting IEEE 1394a Headers ................................................................................ 41 Connecting the Front Panel Header............................................................................. 41 Setting Up the Flexible Audio with Jack Retasking ............................................................... 42 Connecting Fan and Power Cables ...................................................................................... 43 Connecting Fan Cables................................................................................................ 43 Connecting Power Supply Cables................................................................................ 44 Other Connectors.................................................................................................................. 45 Setting the BIOS Configuration Jumper Block ...................................................................... 46 Clearing Passwords .............................................................................................................. 47 3 BIOS Updating the BIOS with the Intel® Express BIOS Update Utility ........................................... 53 Updating the BIOS with the Iflash Memory Update Utility..................................................... 54 Obtaining the BIOS Update File................................................................................... 54 Updating the BIOS ....................................................................................................... 54 Recovering the BIOS ................................................................................................... 55 A Error Messages and Indicators BIOS Beep Codes................................................................................................................. 57 BIOS Error Messages ........................................................................................................... 57 B Regulatory Compliance Safety Regulations ................................................................................................................ 59 European Union Declaration of Conformity Statement ......................................................... 59 Product Ecology Statements................................................................................................. 61 Lead Free Desktop Board ............................................................................................ 63 EMC Regulations .................................................................................................................. 64 Product Certification Markings (Board Level)........................................................................ 65 vi Contents Figures 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. Desktop Board D945PWM Components ........................................................................ 11 LAN Connector LEDs ..................................................................................................... 16 Location of Standby Power Indicator.............................................................................. 20 Installing the I/O Shield................................................................................................... 26 Desktop Board D945PWM Mounting Screw Hole Locations.......................................... 27 Lift Socket Lever............................................................................................................. 28 Lift the Load Plate and Don't Touch the Socket Contacts .............................................. 28 Remove the Protective Socket Cover............................................................................. 29 Remove the Processor from the Protective Processor Cover/Do Not Touch................. 29 Install Processor ............................................................................................................. 30 Close the Load Plate ...................................................................................................... 30 Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector ........ 31 Dual Configuration Example 1........................................................................................ 32 Dual Configuration Example 2........................................................................................ 32 Dual Configuration Example 3........................................................................................ 33 Installing a DIMM............................................................................................................ 34 Inserting a PCI Express x16 Card .................................................................................. 36 Connecting the IDE Cable .............................................................................................. 37 Connecting the Serial ATA Cable................................................................................... 38 Internal Headers ............................................................................................................. 39 Back Panel Audio Connectors........................................................................................ 42 Location of Fan Headers ................................................................................................ 43 Connecting Power Supply Cables .................................................................................. 44 Location of Other Connectors on Desktop Board D945PWM ........................................ 45 Location of the BIOS Configuration Jumper ................................................................... 46 Removing the Battery ..................................................................................................... 52 F2 Key ............................................................................................................................ 53 Tables 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Feature Summary............................................................................................................. 9 Desktop Board D945PWM Components ........................................................................ 12 Power Supply Requirements .......................................................................................... 13 Desktop Board D945PWM Memory Configurations ....................................................... 14 RJ-45 10/100 Ethernet LAN Connector LEDs ................................................................ 17 Front Panel Audio Header Signal Names for Intel® High Definition Audio ..................... 40 AC '97 Audio Header Signal Names .............................................................................. 40 USB 2.0 Header Signal Names ...................................................................................... 41 IEEE 1394a Header Signal Names ................................................................................ 41 Front Panel Header Signal Names................................................................................. 41 Jumper Settings for the BIOS Setup Program Modes.................................................... 46 Beep Codes.................................................................................................................... 57 BIOS Error Messages..................................................................................................... 57 Safety Regulations ......................................................................................................... 59 Lead Free Desktop Board .............................................................................................. 63 EMC Regulations............................................................................................................ 64 Product Certification Markings........................................................................................ 65 vii Intel Desktop Board D945PWM Product Guide viii 1 Desktop Board Features This chapter briefly describes the main features of Intel® Desktop Board D945PWM. Table 1 summarizes the major features of the desktop board. Table 1. Processor Main Memory Feature Summary ATX (12.00-inches by 9.60-inches) Support for an Intel® processor in the LGA775 package · Four 240-pin, 1.8 V SDRAM Dual Inline Memory Module (DIMM) sockets · 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 Form Factor 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/ Chipset Intel® 945P Express Chipset consisting of: · Intel® 82945P Memory Controller Hub (MCH) with Direct Media Interface · Intel® 82801GB I/O Controller Hub (ICH7) · Serial Peripheral Interface (SPI) Flash or Firmware Hub (FWH) Audio · Intel 945P Express Chipset · Intel® High Definition Audio interface · SigmaTel* codec LAN Subsystem Expansion Capabilities 10/100 Ethernet controller with RJ-45 connector · Four PCI bus add-in card connectors · One PCI Express x16 connector · Two PCI Express x1 connectors Peripheral Interfaces · Up to eight Hi-Speed USB 2.0 ports: Four ports routed to the back panel Four ports routed to two USB headers One port routed to the back panel · Up to three IEEE 1394a ports: Two ports routed to two IEEE 1394a headers · Four Serial ATA (SATA) channels (3.0 Gb/s), via the ICH7, one device per channel · One IDE interface with ATA-66/100 support (two devices) · One diskette drive interface · One parallel port · One serial port · PS/2* keyboard and mouse ports continued 9 Intel Desktop Board D945PWM Product Guide Table 1. BIOS Feature Summary (continued) · Intel® Platform Innovation Framework for extensible firmware interface · 4 Mbit symmetrical flash memory · Support for SMBIOS · Intel® Rapid BIOS Boot · Intel® Express BIOS Update Power Management · Support for Advanced Configuration and Power Interface (ACPI) · Suspend to RAM (STR) · Wake on USB, PCI, PCI Express, PS/2, LAN, and front panel Hardware Management Hardware monitor with: · Three fan sensing inputs used to monitor fan activity · Remote diode temperature sensing · Intel® Precision Cooling Technology fan speed control · Voltage sensing to detect out of range values Related Links: For more information about Desktop Board D945PWM, 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 following operating systems: · Microsoft Windows* 2000 · Microsoft Windows XP Professional · Microsoft Windows XP Professional x64 Edition · Microsoft Windows XP Home · Microsoft Windows XP Media Center Edition 2005 10 Desktop Board Features Desktop Board Components Figure 1 shows the approximate location of the major components on Desktop Board D945PWM. Optical Digital Line Out (Toslink) A B C D E F T G S H R Q P O M N L K J I OM19099 Figure 1. Desktop Board D945PWM Components 11 Intel Desktop Board D945PWM Product Guide Table 2. Label A B C D E F G H I J K L M N O P Q R S T Desktop Board D945PWM Components Description Auxiliary rear chassis fan header 1 (4-pin, fan speed control) PCI Express x1 connectors Front panel audio header PCI Express x16 connector 12 V processor core voltage connector (2x2) Rear chassis fan header 1 (3-pin, fan speed control) Processor socket (LGA775) Processor fan header (4-pin, fan speed control) Main power connector (2x12) Diskette drive connector IDE connector Front chassis fan header (3-pin, fan speed control) BIOS configuration jumper block Chassis intrusion header Serial ATA connectors Front panel header Alternate power LED header Hi-speed USB 2.0 headers IEEE 1394a headers PCI bus add-in card connectors Related Links: Go to the following links for more information about: http://www.intel.com/design/motherbd · Desktop Board D945PWM 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 12 Desktop Board Features Processor CAUTION Failure to use the appropriate power supply (below) 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. 05B 05A 04B or 04A Power Supply Requirements Power Supply Requirements 12V2 rating of 16 A continuous and 19 A peak current for 10 ms 12V2 rating of 13 A continuous and 16.5 A peak current for 10 ms ATX12V (version 2.0 or greater) compliant Power Supply Platform Compatibility Guide Desktop Board D945PWM supports an Intel processor in the LGA775 package. Processors are not included with the desktop board and must be purchased separately. The processor connects to the desktop board through the LGA775 socket. The supported processors list for Desktop Board D945PWM 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 28 in Chapter 2 · The location of the two power connectors, page 44 in Chapter 2 13 Intel Desktop Board D945PWM 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. DDR2-667 Desktop Board D945PWM Memory Configurations FSB frequency (MHz) 1066 800 533 Memory Speed (MHz) 667 667 533 533 533 533 400 400 Memory Speed DDR2-533 1066 800 533 DDR2-400 800 533 · · · · · · Four 240-pin Double Data Rate 2 (DDR2) SDRAM Dual Inline Memory Modules (DIMMs) 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 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, http://support.intel.com/support/motherboards/desktop/ · SDRAM specifications, http://www.intel.com/technology/memory/ · Installing memory, page 32 in Chapter 2 14 Desktop Board Features Intel® 945P Express Chipset The Intel 945P Express Chipset consists of the following devices: · Intel 82945P Memory Controller Hub (MCH) with Digital Media Interface · Intel 82801GB I/O Controller Hub (ICH7) · Serial Peripheral Interface (SPI) Flash or Firmware Hub (FWH) Related Link: Go to the following link for more information about the Intel 945P Express Chipset: http://developer.intel.com/design/nav/pcserver.htm Graphics Subsystem Desktop Board D945PWM includes the following: · Intel 945P Express Chipset · PCI Express x16 connector for graphics expansion Audio Subsystem Desktop Board D945PWM includes a flexible 6-channel audio subsystem based on an Intel High Definition Audio codec: The audio subsystem features: · Intel 82801GB I/O Controller Hub (ICH7) · SigmaTel STAC9220 audio codec · Impedance sensing capability for jack re-tasking · S/N (signal-to-noise) ratio: 95 dB · Microphone input that supports: Stereo microphone Microphone boost The subsystem includes the following connectors: · Front panel audio connector, including functionality for: Line out Mic in · Back panel audio connectors that are configurable through the drivers of the audio devices: Line in Line out Mic in Center/LFE out Rear left and right out 15 Intel Desktop Board D945PWM Product Guide Related Links: Go to the following link or pages for more information about: · Audio drivers and utilities http://support.intel.com/support/motherboards/desktop/ · Installing the front panel audio solution, page 40 in Chapter 2 · Location of the back panel audio connectors, page 42 in Chapter 2 Input/Output (I/O) Controller The super I/O controller features the following: · Low pin count (LPC) interface · One serial port · One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support · 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, with the Intel 82801GB (ICH7), provides the following functions: · Support for 10/100 Ethernet LAN · 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 D945PWM 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 Connector LEDs 16 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. LED Green RJ-45 10/100 Ethernet LAN Connector LEDs LED State Off On Blinking Indicates LAN link is not established LAN link is established LAN activity is occurring 10 Mbits/s data rate is selected 100 Mbits/s data rate is selected Yellow Off On (steady state) 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 ICH7; 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 ICH7'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 ICH7, connecting one device per channel. 17 Intel Desktop Board D945PWM Product Guide Expandability The desktop board supports the following: · One PCI Express x16 add-in card · Two PCI Express x1 add-in card · Four 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 entered by pressing the key at startup. The BIOS can be updated by following the instructions on page 53 in Chapter 3. Serial ATA and IDE Auto Configuration 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 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. 18 Desktop Board Features Related Links: For instructions on resetting the password, see Clearing Passwords on page 47. 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 Figure 20 on page 39 for the location of the chassis intrusion header. 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 three power connectors. See Figure 23 on page 44 for the location of the power connectors. Fan Connectors The desktop board has a 4-pin processor fan header and two 3-pin chassis fan headers. See Figure 22 on page 43 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 Intel® boxed processors. Disabling the chassis fan speed control results in chassis fans always operating 19 Intel Desktop Board D945PWM Product Guide 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 affect 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 Figure 3, is lit when there is standby power to the system. This includes the memory modules and PCI bus connectors, even when the computer appears to be off. If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the LED turning amber. OM19100 Figure 3. Location of Standby Power Indicator Related Links: For more information on standby current 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/ 20 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 48 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. 21 Intel Desktop Board D945PWM Product Guide 22 2 Installing and Replacing Desktop Board Components This chapter tells you how to: · Install the I/O shield · Install and remove the desktop board · Install and remove a processor and memory · Install and remove a PCI Express x16 card · Connect the IDE and Serial ATA cables · Connect internal headers · Set up flexible 6-channel audio with jack re-tasking · Connect fans and power cables · Locate other connectors · Set the BIOS configuration jumper · Clear passwords · Replace the battery Before You Begin CAUTIONS The procedures in this chapter assume familiarity with the general terminology associated with personal computers and with the safety practices and regulatory compliance required for using and modifying electronic equipment. Disconnect the computer from its power source and from any telecommunications links, networks, or modems before performing any of the procedures described in this chapter. Failure to disconnect power, telecommunications links, networks, or modems before you open the computer or perform any procedures can result in personal injury or equipment damage. Some circuitry on the board can continue to operate even though the front panel power button is off. NOTE Refer to Appendix B for regulatory requirements. 23 Intel Desktop Board D945PWM Product Guide Follow these guidelines before you begin: · Always follow the steps in each procedure in the correct order. · Set up a log to record information about your computer, such as model, serial numbers, installed options, and configuration information. · Electrostatic discharge (ESD) can damage components. Perform the procedures described in this chapter only at an ESD workstation using an antistatic wrist strap and a conductive foam pad. If such a station is not available, you can provide some ESD protection by wearing an antistatic wrist strap and attaching it to a metal part of the computer chassis. Installation Precautions When you install and test the Intel desktop board, observe all warnings and cautions in the installation instructions. To avoid injury, be careful of: · Sharp pins on connectors · Sharp pins on printed circuit assemblies · Rough edges and sharp corners on the chassis · Hot components (like processors, voltage regulators, and heat sinks) · Damage to wires that could cause a short circuit Observe all warnings and cautions that instruct you to refer computer servicing to qualified technical personnel. Installation Instructions NOTE Follow these guidelines to meet safety and regulatory requirements when installing this board. Read and adhere to all of these instructions and the instructions supplied with the chassis and associated modules. If the instructions for the chassis are inconsistent with these instructions or the instructions for associated modules, contact the supplier's technical support to find out how you can ensure that your computer meets safety and regulatory requirements. If you do not follow these instructions and the instructions provided by chassis and module suppliers, you increase safety risk and the possibility of noncompliance with regional laws and regulations. Ensure Electromagnetic Compatibility (EMC) Compliance Before computer integration, make sure that the power supply and other modules or peripherals, as applicable, have passed Class B EMC testing and are marked accordingly. Pay close attention to the following when reading the installation instructions for the host chassis, power supply, and other modules: · Product certifications or lack of certifications · External I/O cable shielding and filtering · Mounting, grounding, and bonding requirements · Keying connectors when mating the wrong connectors could be hazardous 24 Installing and Replacing Desktop Board Components If the power supply and other modules or peripherals, as applicable, are not Class B EMC compliant before integration, then EMC testing may be required on a representative sample of the newly completed computer. Chassis and Component Certifications Ensure that the chassis and certain components; such as the power supply, peripheral drives, wiring, and cables; are components certified for the country or market where used. Agency certification marks on the product are proof of certification. Typical product certifications include: · In Europe The CE marking signifies compliance with all applicable European requirements. If the chassis and other components are not properly CE marked, a supplier's Declaration of Conformity statement to the European EMC directive and Low Voltage directive (as applicable), should be obtained. Additionally, other directives, such as the Radio and Telecommunications Terminal Equipment (R&TTE) directive may also apply depending on product features. In the United States A certification mark by a Nationally Recognized Testing Laboratory (NRTL) such as UL, CSA, or ETL signifies compliance with safety requirements. Wiring and cables must also be UL listed or recognized and suitable for the intended use. The FCC Class B logo for home or office use signifies compliance with electromagnetic interference (EMI) requirements. In Canada A nationally recognized certification mark such as CSA or cUL signifies compliance with safety requirements. The Industry Canada statement at the front of this product guide demonstrates compliance with Canadian EMC regulations. · · Prevent Power Supply Overload Do not overload the power supply output. To avoid overloading the power supply, make sure that the calculated total current loads of all the modules within the computer is less than the output current rating of each of the power supplies output circuits. Place Battery Marking CAUTION Risk of explosion if the battery is replaced with an incorrect type. Batteries should be recycled where possible. Disposal of used batteries must be in accordance with local environmental regulations. There is insufficient space on this desktop board to provide instructions for replacing and disposing of the Lithium ion coin cell battery. For system safety certification, the above statement or equivalent statement is required to be permanently and legibly marked on the chassis near the battery. Related Links: For information about replacing the battery, go to page 48. 25 Intel Desktop Board D945PWM Product Guide Use Only for Intended Applications 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. Related Links: For information about regulatory compliance, go to Appendix B on page 59. Installing the I/O Shield The desktop board comes with an I/O shield. When installed in the chassis, the shield blocks radio frequency transmissions, protects internal components from dust and foreign objects, and promotes correct airflow within the chassis. Install the I/O shield before installing the desktop board in the chassis. Place the shield inside the chassis as shown in Figure 4. Press the shield into place so that it fits tightly and securely. If the shield doesn't fit, obtain a properly-sized shield from the chassis supplier. OM19101 Figure 4. Installing the I/O Shield 26 Installing and Replacing Desktop Board Components Installing and Removing the Desktop Board CAUTION Only qualified technical personnel should do this procedure. Disconnect the computer from its power source before performing the procedures described here. Failure to disconnect the power before you open the computer can result in personal injury or equipment damage. Refer to your chassis manual for instructions on installing and removing the desktop board. Figure 5 shows the location of the 11 mounting screw holes for Desktop Board D945PWM. OM19102 Figure 5. Desktop Board D945PWM Mounting Screw Hole Locations 27 Intel Desktop Board D945PWM Product Guide Installing and Removing a Processor Instructions on how to install the processor to the desktop board are given below. Installing a Processor CAUTION Before installing or removing the processor, make sure the AC power has been removed by unplugging the power cord from the computer; the standby power LED should not be lit (see Figure 3 on page 20). Failure to do so could damage the processor and the board. To install a processor, follow these instructions: 1. Observe the precautions in "Before You Begin" on page 23. 2. Open the socket lever by pushing the lever down and away from the socket (see Figure 6, A and B). A B OM17210 Figure 6. Lift Socket Lever 3. Lift the load plate. Do not touch the socket contacts (see Figure 7, C and D). C D D OM19103 Figure 7. Lift the Load Plate and Don't Touch the Socket Contacts 28 Installing and Replacing Desktop Board Components 4. Remove the plastic protective socket cover from the load plate (see Figure 8, E). Do not discard the protective socket cover. Always replace the socket cover if the processor is removed from the socket. E OM19104 Figure 8. Remove the Protective Socket Cover 5. Remove the processor from the protective processor cover. Hold the processor only at the edges, being careful not to touch the bottom of the processor (see Figure 9). Do not discard the protective processor cover. Always replace the processor back to the package if the processor is removed from the socket. OM17213 Figure 9. Remove the Processor from the Protective Processor Cover/Do Not Touch 29 Intel Desktop Board D945PWM Product Guide 6. Hold the processor with your thumb and index fingers oriented as shown in Figure 10. Make sure fingers align to the socket cutouts (see Figure 10, F). Align notches (see Figure 10, G) with the socket see (Figure 10, H). Lower the processor straight down without tilting or sliding the processor in the socket. G G H F H F OM19105 Figure 10. Install Processor 7. While pressing down on the load plate (Figure 11, I), close and engage the socket lever (Figure 11, J). J I OM17215 Figure 11. Close the Load Plate 30 Installing and Replacing Desktop Board Components Installing the Processor Fan Heat Sink Desktop Board D945PWM has an integrated processor fan heat sink retention mechanism (RM). For instructions on how to attach the processor fan heat sink to the integrated processor fan heat sink RM, refer to the boxed processor manual or the Intel World Wide Web site at: The Boxed Intel® Pentium® 4 Processor in the 775-Land Package Connecting the Processor Fan Heat Sink Cable Connect the processor fan heat sink cable to the 4-pin processor fan connector (see Figure 12). OM19106 Figure 12. Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector Removing the Processor For instructions on how to remove the processor fan heat sink and processor, refer to the processor installation manual or the Intel World Wide Web site at: The Boxed Intel® Pentium® 4 Processor in the 775-Land Package 31 Intel Desktop Board D945PWM Product Guide Installing and Removing Memory NOTE To be fully compliant with all applicable Intel SDRAM memory specifications, the board requires DIMMs that support the Serial Presence Detect (SPD) data structure. You can access the PC Serial Presence Detect Specification at: http://www.intel.com/technology/memory/ddr/specs/dda18c32_64_128x72ag_a.pdf The desktop board has four 240-pin DDR2 DIMM sockets arranged as DIMM 0 (blue) and DIMM 1 (black) in both Channel A and Channel B. Guidelines for Dual Channel Memory Configuration Before installing DIMMs, read and follow these guidelines for dual channel configuration. Two or Four DIMMs Install a matched pair of DIMMs equal in speed and size in DIMM 0 (blue) of both channels A and B (see Figure 13). Channel A 1 GB, 533 MHz Channel B 1 GB, 533 MHz DIMM 0 DIMM 1 DIMM 0 DIMM 1 Figure 13. Dual Configuration Example 1 If additional memory is to be used, install another matched pair of DIMMs in DIMM 1 (black) in both channels A and B (see Figure 14). Channel A 256 MB, 533 MHz 512 MB, 533 MHz Channel B 256 MB, 533 MHz 512 MB, 533 MHz DIMM 0 DIMM 1 DIMM 0 DIMM 1 Figure 14. Dual Configuration Example 2 32 Installing and Replacing Desktop Board Components Three DIMMs Install a matched pair of DIMMs equal in speed and size in DIMM 0 (blue) and DIMM 1 (black) of channel A. Install a DIMM equal in speed and total size of the DIMMs installed in channel A in either DIMM 0 or DIMM 1 of channel B (see Figure 15). Channel A 256 MB, 533 MHz 256 MB, 533 MHz Channel B 512 MB, 533 MHz DIMM 0 DIMM 1 DIMM 0 DIMM 1 Figure 15. Dual Configuration Example 3 NOTE All other memory configurations will result in single channel memory operation. 33 Intel Desktop Board D945PWM Product Guide Installing DIMMs NOTE Install memory in the DIMM sockets prior to installing a PCI Express video card to avoid interference with the memory retention mechanism. 1. Observe the precautions in "Before You Begin" on page 23. 2. Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord. 3. Remove the computer's cover and locate the DIMM sockets (see Figure 16). OM19107 Figure 16. Installing a DIMM 4. Remove the PCI Express video card if it interferes with the DIMM retaining clips from being easily opened and closed. 5. Make sure the clips at either end of the DIMM socket(s) are pushed outward to the open position. 6. Holding the DIMM by the edges, remove it from its anti-static package. 7. Position the DIMM above the socket. Align the small notch at the bottom edge of the DIMM with the keys in the socket (see inset in Figure 16). 8. Insert the bottom edge of the DIMM into the socket. 9. When the DIMM is inserted, push down on the top edge of the DIMM until the retaining clips snap into place. Make sure the clips are firmly in place. 10. Reinstall the PCI Express card if it was removed prior to installing the DIMMs. 11. Replace the computer's cover and reconnect the AC power cord. 34 Installing and Replacing Desktop Board Components Removing DIMMs To remove a DIMM, follow these steps: 1. Observe the precautions in "Before You Begin" on page 23. 2. Turn off all peripheral devices connected to the computer. Turn off the computer. 3. Remove the AC power cord from the computer. 4. Remove the computer's cover. 5. Remove the PCI Express card if it interferes with the DIMM clips from being easily opened and closed. 6. Gently spread the retaining clips at each end of the DIMM socket. The DIMM pops out of the socket. 7. Hold the DIMM by the edges, lift it away from the socket, and store it in an anti-static package. 8. Reinstall the PCI Express card if you removed it before taking out the DIMM. 9. Reinstall and reconnect any parts you removed or disconnected to reach the DIMM sockets. 10. Replace the computer's cover and reconnect the AC power cord. 35 Intel Desktop Board D945PWM Product Guide Installing and Removing a PCI Express* x16 Card CAUTION When installing any PCI Express x16 card on the desktop board, ensure that it is fully seated in the PCI Express x16 connector before you power on the system. If the card is not fully seated in the PCI Express connector, an electrical short may result across the PCI Express connector pins. Depending on the over-current protection of the power supply, certain board components and/or traces may be damaged. Installing a PCI Express x16 Card 1. Observe the precautions in "Before You Begin" on page 23. 2. Place the card in the PCI Express x16 connector and press down on the card until it is completely seated in the connector and the card retention notch snaps into place around the RM pin (Figure 17, A). 3. Secure the card's metal bracket to the chassis back panel with a screw (Figure 17, B). B A OM17683 Figure 17. Inserting a PCI Express x16 Card Removing the PCI Express x16 Card Follow these instructions to remove the PCI Express x16 card from the RM: 1. Observe the precautions in "Before You Begin" on page 23. 2. Remove the screw that secures the card's metal bracket to the chassis back panel. 3. Push back on the RM lever until the retention pin completely clears the notch in the card. 4. Pull the card straight up. 36 Installing and Replacing Desktop Board Components Connecting the IDE Cable The IDE cable can connect two drives to the desktop board. The cable supports the ATA-66/100 transfer protocol. Figure 18 shows the correct installation of the cable. NOTES ATA-66/100 compatible cables are backward compatible with drives using slower IDE transfer protocols. If an ATA-66/100 disk drive and a disk drive using any other IDE transfer protocol are attached to the same cable, the maximum transfer rate between the drives may be reduced to that of the slowest drive. Do not connect an ATA device as a slave on the same IDE cable as an ATAPI master device. For example, do not connect an ATA hard drive as a slave to an ATAPI CD-ROM drive. For correct function of the cable: · Observe the precautions in "Before You Begin" on page 23. · Attach the cable end with the single connector (blue) to the Intel desktop board (Figure 18, A). · Attach the cable end with the two closely spaced connectors (gray and black) to the drives (Figure 18, B). A B OM19108 Figure 18. Connecting the IDE Cable 37 Intel Desktop Board D945PWM Product Guide Connecting the Serial ATA (SATA) Cable The SATA cable (4-conductor) supports the Serial ATA protocol and connects a single drive to the desktop board. For correct cable function: 1. Observe the precautions in "Before You Begin" on page 23. 2. Attach the locking cable end to the connector on the board (Figure 19, A). 3. Attach the cable end without the lock to the drive (Figure 19, B). A B OM19109 Figure 19. Connecting the Serial ATA Cable 38 Installing and Replacing Desktop Board Components Connecting Internal Headers Before connecting cables to the internal headers, observe the precautions in "Before You Begin" on page 23. Figure 20 shows the location of the internal headers. Audio F 1394a E USB A USB B D A 12 Front Panel C B Alternate Front Panel Power LED OM19110 Item A B C D E F Description Chassis intrusion Alternate power LED Front panel USB 2.0 (two) IEEE 1394a (two) Front panel audio Figure 20. Internal Headers 39 Intel Desktop Board D945PWM Product Guide Installing a Front Panel Audio Solution for Intel® High Definition Audio Figure 20, F on page 39 shows the location of the yellow front panel audio header. Table 6 shows the pin assignments for the front panel audio header. Table 6. Pin 1 3 5 7 9 Front Panel Audio Header Signal Names for Intel® High Definition Audio Signal Name PORT 1L PORT 1R PORT 2R SENSE_SEND PORT 2L Pin 2 4 6 8 10 Signal Name GND PRESENCE# SENSE1_RETURN KEY (no pin) SENSE2_RETURN To install the cable that connects the front panel audio solution to the front panel audio header, follow these steps: 1. Observe the precautions in "Before You Begin" on page 23. 2. Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord. 3. Remove the cover. 4. Install a correctly keyed and shielded front panel audio cable. NOTE: some chassis still use a front panel audio solution based on the AC '97 audio specification. Refer to Table 7 below to connect an AC '97 front panel solution to the front panel audio header on the board. The front panel audio jacks will need to be manually configured for microphone or line out functionality in the Intel® Audio Studio application. Table 7. Pin 1 3 5 7 9 AC '97 Audio Header Signal Names Signal Name MIC MIC_BIAS FP_OUT_R AUD_5V FP_OUT_L Pin 2 4 6 8 10 Signal Name AUD_GND AUD_GND FP_RETURN_R KEY FP_RETURN_L 5. Connect the audio cable to the front panel audio solution. 6. Replace the cover. To restore back panel audio, follow these steps: 1. Observe the precautions in "Before You Begin" on page 23. 2. Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord. 3. Remove the cover. 4. Remove the front panel audio cable. 5. Replace the cover. 40 Installing and Replacing Desktop Board Components Connecting USB 2.0 Headers Before connecting the USB 2.0 headers, observe the precautions in "Before You Begin" on page 23. See Figure 20, D on page 39 for the location of the black USB 2.0 headers. Table 8 shows the pin assignments for the USB 2.0 headers. Table 8. Pin 1 3 5 7 9 USB 2.0 Header Signal Names USB Port A Signal name Power DD+ Ground Key Pin 2 4 6 8 10 USB Port B Signal name Power DD+ Ground No connect Note: USB ports may be assigned as needed. Connecting IEEE 1394a Headers Before connecting the IEEE 1394a headers, observe the precautions in "Before You Begin" on page 23. See Figure 20, E on page 39 for the location of the blue IEEE 1394a headers. Table 9 shows the pin assignments for the headers. Table 9. Pin 1 3 5 7 9 IEEE 1394a Header Signal Names Pin 2 4 6 8 10 Signal Name TPA1Ground TPA2+12 V Ground Signal Name TPA1+ Ground TPA2+ +12 V Key (no pin) Connecting the Front Panel Header Before connecting the front panel header, observe the precautions in "Before You Begin" on page 23. See Figure 20, C on page 39 for the location of the multi-colored front panel header. Table 10 shows the pin assignments for the front panel header. Table 10. Pin Signal 1 3 HD_PWR HDA# Front Panel Header Signal Names In/Out Out Out Description Hard disk LED pullup (330 ) to +5 V Hard disk active LED Pin Signal 2 4 In/Out Description Front panel green LED Front panel yellow LED Power switch Ground No pin Power LED (Green) HDR_BLNK_GRN Out HDR_BLNK_YEL Out Hard Drive Activity LED (Orange) Reset Switch (Purple) 5 7 9 Ground FP_RESET# N/C In Ground Reset switch Not connected 6 8 10 Ground No pin On/Off Switch (Red) SWITCH_ON# In 41 Intel Desktop Board D945PWM Product Guide Setting Up the Flexible Audio with Jack Retasking Figure 21 shows the available configurable audio ports. The audio ports are configurable through the SigmaTel audio driver. After installing the SigmaTel audio driver, the multi-channel audio feature can be enabled. A B C D E F OM19111 Item A B C D E F Description Surround left/right channel audio out/retasking jack Center channel and LFE (subwoofer) audio out/retasking jack Optical digital line out Audio line in/retasking jack Front left/right channel audio out/2-channel audio out/retasking jack Mic in/retasking jack Figure 21. Back Panel Audio Connectors 42 Installing and Replacing Desktop Board Components Connecting Fan and Power Cables Connecting Fan Cables Figure 22 shows the location of the fan headers. Connect the processor's fan heat sink cable to the 4-pin processor fan header on the board. Connect chassis fan cables to the 3-pin fan headers. OR 4 3 2 1 4 3 2 1 3 2 1 3 2 1 A B A B OM19112 Figure 22. Location of Fan Headers 43 Intel Desktop Board D945PWM Product Guide Connecting Power Supply Cables CAUTION Failure to use the appropriate power supply 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. See Table 3 on page 13 for power supply requirements. Figure 23 shows the location of the power supply connectors. 1 2 OM19113 Figure 23. Connecting Power Supply Cables 1. Observe the precautions in "Before You Begin" on page 23. 2. Connect the main power supply cable to the 2x12 connector. 3. Connect the 12 V processor core voltage power supply cable to the 2x2 connector. 44 Installing and Replacing Desktop Board Components Other Connectors Figure 24 shows the location of the PCI add-in card, PCI Express 1x, and diskette drive connectors. A B C D E F G OM19114 Item A B C D E F G Description PCI bus add-in card connector 4 PCI bus add-in card connector 3 PCI Express x1 connector 2 PCI Express x1 connector 1 PCI bus add-in card connector 2 PCI bus add-in card connector 1 Diskette drive connector Figure 24. Location of Other Connectors on Desktop Board D945PWM