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Intel® Desktop Board D945GCLF
Product Guide
Order Number: E35045-004
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Revision History Revision Revision History Date ® -001 First release of the Intel Desktop Board D945GCLF Product Guide April 2008 ® -002 Second release of the Intel Desktop Board D945GCLF Product Guide May 2008 ® -003 Third release of the Intel Desktop Board D945GCLF Product Guide July 2008 ® -004 Fourth release of the Intel Desktop Board D945GCLF Product Guide December 2008 If an FCC declaration of conformity marking is present on the board, the following statement applies: FCC Dec
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Preface This Product Guide gives information about board layout, component installation, and ® regulatory requirements for Intel Desktop Board D945GCLF. Intended Audience The Product Guide is intended for technically qualified personnel. It is not intended for general audiences. 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
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Intel Desktop Board D945GCLF 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) iv
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Contents 1 Desktop Board Features Desktop Board Components.................................................................................10 Processor..........................................................................................................12 Main Memory.....................................................................................................12 ® Intel 945GC Express Chipset..............................................................................13 Onboard
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Intel Desktop Board D945GCLF Product Guide Connecting Power Supply Cables..........................................................................33 Setting the BIOS Configuration Jumper .................................................................34 Clearing Passwords.....................................................................................35 Replacing the Battery .........................................................................................36 3 Updating the BIOS
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Contents Figures 1. Intel Desktop Board D945GCLF Components ....................................................10 2. Back Panel Audio Connectors .........................................................................14 3. LAN Status LEDs..........................................................................................15 4. Location of the Standby Power Indicator ..........................................................19 5. Installing the I/O Shield ............................
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Intel Desktop Board D945GCLF Product Guide viii
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1 Desktop Board Features ® This chapter briefly describes the main features of Intel Desktop Board D945GCLF. Table 1 summarizes the features of the Desktop Board. Table 1. Feature Summary Form Factor Mini-ITX (171.45 millimeters [6.75 inches] x 171.45 millimeters [6.75 inches]) ® ™ Processor Intel Atom processor 230 Main Memory • One 240-pin SDRAM Dual Inline Memory Module (DIMM) socket • 533 MHz single channel DDR2 SDRAM interface • Supports up to 2 GB of system memory ® Chipse
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Intel Desktop Board D945GCLF Product Guide Desktop Board Components Figure 1 shows the location of the major components on Desktop Board D945GCLF. Figure 1. Intel Desktop Board D945GCLF Components 10
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Desktop Board Features Table 2. Desktop Boards D945GCLF Components Label Description A PCI bus add-in card connector B Front panel audio header C Back panel connectors D 12 V processor core voltage connector (2 x 2) E Rear fan (3-pin) header F Processor G DDR 2 DIMM connector H Main power connector (2 x 10) I IDE connector J Serial ATA connectors (2) K Front panel header L Battery M BIOS configuration jumper N Hi-speed USB 2.0 header 11
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Intel Desktop Board D945GCLF Product Guide Processor CAUTION Failure to use an appropriate power supply and/or not connecting the 12 V (2 x 2) power connector to the Desktop Board may result in damage to the board, or the system may not function properly. Desktop Board D945GCLF includes an Intel Atom processor 230. The processor is soldered to the Desktop Board and is not customer upgradeable. Main Memory NOTE ® To be fully compliant with all applicable Intel SDRAM memory specifi
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Desktop Board Features ® Intel 945GC Express Chipset The Intel 945GC Express Chipset consists of the following devices: • Intel 82945GC Express Chipset Graphics and Memory Controller Hub (GMCH) • Intel 82801GB I/O Controller Hub (ICH7) The GMCH component provides interfaces to the processor, memory, and the DMI interconnect. This component also provides integrated graphics capabilities via the ® ® Intel Graphics Media Accelerator 950 (Intel GMA 950). The ICH7 is a centralized control
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Intel Desktop Board D945GCLF Product Guide Figure 2 shows the default assignment of the back panel audio connectors. Item Description A Line In B Line Out C Mic In Figure 2. Back Panel Audio Connectors NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only. Poor audio quality occurs if passive (non-amplified) speakers are connected to this output. Related Links: Go to the following locations for more information about: • Audi
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Desktop Board Features LAN Subsystem The LAN, based on the RealTek RTL8102EL Ethernet Controller, provides the following functions: • 10/100 Mb/s 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 D945GCLF link on Intel’s World Wide Web site at http://support.intel.com/support/motherboards/desktop. LAN Status LEDs
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Intel Desktop Board D945GCLF Product Guide 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 six USB 2.0 ports (four ports routed to the back panel and two ports routed to an onboard USB 2.0 header). The USB 2.0
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Desktop Board Features BIOS The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI and IDE auto-configuration utilities, and the video BIOS. IDE Auto Configuration If you install an IDE device (such as a hard drive) in your computer, the auto- configuration 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 an IDE device. You can override the auto-configuration
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Intel Desktop Board D945GCLF Product Guide Power Management Features Power management is implemented at several levels, including: • Advanced Configuration and Power Interface (ACPI) • Hardware support: ― Power connectors ― Fan headers ― +5 V standby power indicator LED ― LAN Wake capabilities ― 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.
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Desktop Board Features +5 V Standby Power Indicator LED CAUTION If the AC power has been switched off and the standby power indicator is still lit, disconnect the power cord before installing or removing any devices connected to the board. Failure to do so could damage the board and any attached devices. The Desktop Board’s standby power indicator, shown in Figure 4, is lit when there is standby power to the system. This includes the DIMM socket and the PCI bus connector, even thoug
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Intel Desktop Board D945GCLF Product Guide LAN Wake Capabilities CAUTION For LAN wake capabilities, 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. LAN wakeup capabilities enable remote wake-up of the computer through a network. The LAN subsystem monitors network traffic and upon detecting a Magic Packet* frame, it asserts a wake-up si
