Intel Desktop Board D945GSEJT

Transcription

1 Intel Desktop Board D945GSEJT Technical Product Specification April 2009 Order Number: E US The Intel Desktop Board D945GSEJT may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized errata are documented in the Intel Desktop Board D945GSEJT Specification Update.

2 Revision History Revision Revision History Date -001 First release of the Intel Desktop Board D945GSEJT Technical Product Specification. April 2009 This product specification applies to only the standard Intel Desktop Board D945GSEJT with BIOS identifier JT94510H.86A. Changes to this specification will be published in the Intel Desktop Board D945GSEJT Specification Update before being incorporated into a revision of this document. 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. UNLESS OTHERWISE AGREED IN WRITING BY INTEL, THE INTEL PRODUCTS ARE NOT DESIGNED NOR INTENDED FOR ANY APPLICATION IN WHICH THE FAILURE OF THE INTEL PRODUCT COULD CREATE A SITUATION WHERE PERSONAL INJURY OR DEATH MAY OCCUR. Intel Corporation may have patents or pending patent applications, trademarks, copyrights, or other intellectual property rights that relate to the presented subject matter. The furnishing of documents and other materials and information does not provide any license, express or implied, by estoppel or otherwise, to any such patents, trademarks, copyrights, or other intellectual property rights. Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked reserved or undefined. Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. Intel Desktop Boards 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 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 P.O. Box 5937 Denver, CO or call in North America , Europe , France , Germany , other Countries Intel, the Intel logo, and Intel Atom are trademarks of Intel Corporation in the United States and other countries. * Other names and brands may be claimed as the property of others. Copyright 2009, Intel Corporation. All rights reserved.

3 Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for the Intel Desktop Board D945GSEJT. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Intel Desktop Board D945GSEJT and its components to the vendors, system integrators, and other engineers and technicians who need this level of information. It is specifically not intended for general audiences. What This Document Contains Chapter Description 1 A description of the hardware used on the board 2 A map of the resources of the board 3 The features supported by the BIOS Setup program 4 A description of the BIOS error messages, beep codes, and POST codes 5 Regulatory compliance and battery disposal information Typographical Conventions This section contains information about the conventions used in this specification. Not all of these symbols and abbreviations appear in all specifications of this type. Notes, Cautions, and Warnings NOTE Notes call attention to important information. INTEGRATOR S NOTES Integrator s notes are used to call attention to information that may be useful to system integrators. CAUTION Cautions are included to help you avoid damaging hardware or losing data. iii

4 Intel Desktop Board D945GSEJT Technical Product Specification Other Common Notation # Used after a signal name to identify an active-low signal (such as USBP0#) GB GB/sec Gbit KB Kbit kbits/sec MB MB/sec Mbit Mbit/sec xxh x.x V Gigabyte (1,073,741,824 bytes) Gigabytes per second Gigabit (1,073,741,824 bits) Kilobyte (1024 bytes) Kilobit (1024 bits) 1000 bits per second Megabyte (1,048,576 bytes) Megabytes per second Megabit (1,048,576 bits) Megabits per second An address or data value ending with a lowercase h indicates a hexadecimal value. Volts. Voltages are DC unless otherwise specified. * This symbol is used to indicate third-party brands and names that are the property of their respective owners. iv

5 Contents 1 Product Description 1.1 Overview Feature Summary Board Layout Block Diagram Online Support Processor System Memory Mobile Intel 945GSE Chipset Intel 945GSE Graphics Subsystem USB ATA Support Real-Time Clock Subsystem Legacy I/O Controller Serial Ports Parallel Port PS/2 Keyboard Interface Audio Subsystem Audio Subsystem Drivers Audio Connectors and Headers LAN Subsystem LAN Subsystem Drivers RJ-45 LAN Connector with Integrated LEDs Hardware Management Subsystem Hardware Monitoring Thermal Monitoring Power Management ACPI Hardware Support ENERGY STAR*, E-Standby, and EuP Compliance Technical Reference 2.1 Memory Map Addressable Memory Connectors and Headers Back Panel Component-side Connectors and Headers BIOS Configuration Jumper Block Mechanical Considerations Form Factor v

6 Intel Desktop Board D945GSEJT Technical Product Specification 2.5 Electrical Considerations Power Supply Considerations Fan Header Current Capability Add-in Board Considerations Thermal Considerations Power Consumption Minimum Load Configuration Maximum Load Configuration Reliability Environmental Overview of BIOS Features 3.1 Introduction BIOS Flash Memory Organization Resource Configuration PCI* Autoconfiguration System Management BIOS (SMBIOS) Legacy USB Support BIOS Updates BIOS Recovery Custom Splash Screen Boot Options CD-ROM Boot Network Boot Booting Without Attached Devices Changing the Default Boot Device During POST BIOS Security Features Board Status and Error Messages 4.1 Front-panel Power LED Blink and Internal Speaker Beep Codes BIOS Error Messages Port 80h POST Codes Regulatory Compliance and Battery Disposal Information 5.1 Regulatory Compliance Safety Standards European Union Declaration of Conformity Statement Product Ecology Statements EMC Regulations Product Certification Markings (Board Level) Battery Disposal Information vi

7 Contents Figures 1-1. Major Board Components Block Diagram LAN Connector LED Locations Thermal Sensors and Fan Headers Location of the Standby Power Indicator LED Detailed System Memory Address Map Back Panel Connectors Back Panel Connectors Component-side Connectors and Headers Connection Diagram for Front Panel Header Connection Diagram for Front Panel USB Header Connection Diagram for Front Panel USB Header (with Intel Z-U130 USB Solid-State Drive, or Compatible Device, Support) Location of the BIOS Configuration Jumper Block Board Dimensions Localized High Temperature Zones Tables 1. Feature Summary Board Components Shown in Figure Supported Memory Configurations Audio Jack Retasking Support LAN Connector LED States Effects of Pressing the Power Switch Power States and Targeted System Power Wake-up Devices and Events ENERGY STAR Requirements System Memory Map Component-side Connectors and Headers Shown in Figure Serial Port Header (COM 1 and COM 2) PS/2 Keyboard Port Header PATA Connector (44-Pin) Chassis Fan Header Chassis Intrusion Header SATA Connectors SATA Power Connector Parallel Port Header Front Panel Wireless Activity LED Header S/PDIF Header Internal Mono Speaker Header Front Panel Audio Header for Intel HD Audio Front Panel Audio Header for AC 97 Audio ATX12V Power Connector Front Panel Header vii

8 Intel Desktop Board D945GSEJT Technical Product Specification 27. States for a One-Color Power LED BIOS Configuration Jumper Settings Fan Header Current Capability Thermal Considerations for Components Minimum Load Configuration Current and Power Results Maximum Load Configuration Current and Power Results Intel Desktop Board D945GSEJT Environmental Specifications BIOS Setup Program Menu Bar BIOS Setup Program Function Keys Acceptable Drives/Media Types for BIOS Recovery Boot Device Menu Options Supervisor and User Password Functions Front-panel Power LED Blink and Internal Speaker Beep Codes BIOS Error Messages Port 80h POST Code Ranges Port 80h POST Codes Typical Port 80h POST Sequence Safety Standards Lead-Free Board Markings EMC Regulations Product Certification Markings viii

9 1 Product Description 1.1 Overview Feature Summary Table 1 summarizes the major features of Intel Desktop Board D945GSEJT. Table 1. Feature Summary Form Factor Processor Memory Chipset Audio Internal Graphics Legacy I/O Control Peripheral Interfaces LAN Support 20 mm-thin mini-itx, (6.7 inches by 6.7 inches [170 millimeters by 170 millimeters]) compatible with microatx Passively-cooled, soldered-down Single-Core Intel Atom processor N270 One 200-pin Double Data Rate 2 (DDR2) Small Outline Dual Inline Memory Module (SO-DIMM) socket with gold-plated contacts Support for DDR2 533 MHz SO-DIMMs (DDR2 800 MHz and DDR2 667 MHz validated to run at 533 MHz only) Support for up to 2 GB of system memory Passively cooled, mobile Intel 945GSE Express Chipset, consisting of: Intel 82945GSE Graphics and Memory Controller Hub (GMCH) Intel 82801GBM I/O Controller Hub (ICH7-M) Multi-streaming 2+2 channel audio subsystem with S/PDIF and internal mono speaker support based on the Realtek* ALC662 high definition audio codec Intel GMA950 onboard graphics subsystem with support for: Analog displays (VGA) Digital displays (DVI-D) Winbond W83627DHG-A based Legacy I/O controller for hardware management, serial, parallel, and PS/2* ports Seven USB 2.0 ports: Three back panel ports Four front panel ports (via two internal headers; one header supports an Intel Z-U130 USB Solid-State Drive (or compatible device) Two Serial ATA (SATA) 3.0 Gb/s connectors (supporting IDE and AHCI) One SATA device power connector One Parallel ATA (PATA) 44-pin connector with ATA-100/66 support One parallel port header Two serial port headers One PS/2* keyboard header 10/100/1000 Mbits/sec LAN subsystem using a Realtek 8111DL Gigabit Ethernet Controller continued 9

10 Intel Desktop Board D945GSEJT Technical Product Specification Table 1. Feature Summary (continued) BIOS Instantly Available PC Technology Expansion Capabilities Hardware Monitor Subsystem Power Intel BIOS (resident in the SPI Flash device) Support for Advanced Configuration and Power Interface (ACPI), Plug and Play, and SMBIOS Support for PCI* Local Bus Specification Revision 2.3 Suspend to RAM support Wake on PCI, PCI Express*, PS/2, serial, front panel, USB ports, and LAN One PCI Conventional bus connector PCI Express Full-Mini Card slot Hardware monitoring through the Windbond I/O controller Voltage sense to detect out of range power supply voltages Thermal sense to detect out of range thermal values One fan header One fan sense input used to monitor fan activity Fan speed control Integrated DC-to-DC circuitry 12 VDC jack on back panel for external power supply ATX12V 2 x 2 power connector for alternate internal power supply 10

11 Product Description Board Layout Figure 1-1 shows the location of the major components. Figure 1-1. Major Board Components Table 2 lists the components identified in Figure

12 Intel Desktop Board D945GSEJT Technical Product Specification Table 2. Board Components Shown in Figure 1-1 Item/callout from Figure 1-1 A B C D E Description Back panel connectors +12 V internal power connector (ATX12V) SO-DIMM socket Intel 82945GSE GMCH Intel Atom processor F Serial port header (COM 2) G Serial port header (COM 1) H I J K L M PS/2 keyboard port header Reserved PATA connector (44-pin) Reserved Chassis fan header Chassis intrusion header N SATA connector 0 O P Intel 82801GBM I/O Controller Hub (ICH7-M) SATA power connector Q SATA connector 1 R S T U V W X Y Z AA BB CC DD EE Parallel port header Battery Reserved Reserved Front panel header Front panel wireless activity LED header PCI Express Mini Card connector BIOS Setup configuration jumper block PCI Conventional bus add-in card connector S/PDIF header Front panel USB header Internal mono speaker header Front panel audio header Front panel USB header (with Intel Z-U130 USB Solid-State Drive, or compatible device, support) 12

13 Product Description Block Diagram Figure 1-2 is a block diagram of the major functional areas. Figure 1-2. Block Diagram 13

14 Intel Desktop Board D945GSEJT Technical Product Specification 1.2 Online Support To find information about Intel Desktop Board D945GSEJT Desktop Board Support Available configurations for the Intel Desktop Board D945GSEJT Chipset information BIOS and driver updates Integration information Visit this World Wide Web site: Processor The board is designed to support a single-core Intel Atom processor N270 soldered down. NOTE The board is designed to be passively cooled in a properly ventilated chassis. Chassis venting locations are recommended above the processor heatsink area for maximum heat dissipation effectiveness. INTEGRATOR S NOTE The board may be powered by using an external 12 VDC or internal ATX12V-compliant power supply. Use of an external 12 VDC power supply is preferred. For information about Refer to Power supply connectors Section , page 45 14

15 Product Description 1.4 System Memory The board has one 200-pin DDR2 SO-DIMM socket and supports the following memory features: DDR2 SDRAM SO-DIMMs with gold-plated contacts Unbuffered, single-sided or double-sided SO-DIMMs 2 GB maximum total system memory Minimum total system memory: 256 MB Non-ECC SO-DIMMs Serial Presence Detect DDR2 533 MHz SDRAM SO-DIMMs (DDR2 800 MHz and DDR2 667 MHz validated to run at 533 MHz only) NOTE Due to passively-cooled thermal constraints, system memory must have an operating temperature rating of 85 o C. The board is designed to be passively cooled in a properly ventilated chassis. Chassis venting locations are recommended above the system memory area for maximum heat dissipation effectiveness. NOTE To be fully compliant with all applicable DDR2 SDRAM memory specifications, the board should be populated with SO-DIMMs that support the Serial Presence Detect (SPD) data structure. This allows the BIOS to read the SPD data and program the chipset to accurately configure memory settings for optimum performance. If non- SPD memory is installed, performance and reliability may be impacted or the SO-DIMMs may not function under the determined frequency. Table 3 lists the supported SO-DIMM configurations. Table 3. Supported Memory Configurations SO-DIMM Capacity Configuration SDRAM Density SDRAM Organization Front-side/Back-side 256 MB SS 256 Mbit 32 M x 8/empty MB SS 512 Mbit 32 M x 16/empty MB DS 256 Mbit 32 M x 8/32 M x MB SS 512 Mbit 64 M x 8/empty MB SS 1 Gbit 64 M x 16/empty MB DS 512 Mbit 64 M x 8/64 M x MB SS 1 Gbit 128 M x 8/empty MB DS 1 Gbit 128 M x 8/128 M x 8 16 Number of SDRAM Devices Note: In the second column, DS refers to double-sided memory modules (containing two rows of SDRAM) and SS refers to single-sided memory modules (containing one row of SDRAM). 15

16 Intel Desktop Board D945GSEJT Technical Product Specification 1.5 Mobile Intel 945GSE Chipset The Mobile Intel 945GSE chipset consists of the following devices: Intel 82945GSE Graphics and Memory Controller Hub (GMCH) with Direct Media Interface (DMI) interconnect Intel 82801GBM I/O Controller Hub (ICH7-M) with DMI interconnect The GMCH component provides interfaces to the CPU, memory, and the DMI interconnect. The component also provides integrated graphics capabilities supporting 3D, 2D, and display capabilities. The ICH7-M is a centralized controller for the board s I/O paths. NOTE The board is designed to be passively cooled in a properly ventilated chassis. Chassis venting locations are recommended above the GMCH heatsink area for maximum heat dissipation effectiveness. For information about The Intel 945GSE chipset Refer to Resources used by the chipset Chapter Intel 945GSE Graphics Subsystem Intel GMA950 Graphics Controller The Intel GMA950 graphics controller features the following: 166 MHz core frequency High performance 3-D setup and render engine High quality texture engine DX9* Compliant Hardware Pixel Shader 2.0 Alpha and luminance maps Texture color-keying/chroma-keying Cubic environment reflection mapping Enhanced texture blending functions 3D Graphics Rendering enhancements 1.3 Dual Texture GigaPixel/Sec Fill Rate 16 and 32 bit color Maximum 3D supported resolution of 1600 x 1200 x 32 at 85 Hz Vertex cache Anti-aliased lines OpenGL* version 1.4 support with vertex buffer and EXT_Shadow extensions 16

17 Product Description 2D Graphics enhancements 8, 16, and 32 bit color Optimized 256-bit BLT engine Color space conversion Anti-aliased lines Video Hardware motion compensation for MPEG2 Software DVD at 30 fps full screen Intel Zoom Utility For information about Refer to Obtaining graphics software and utilities Section 1.2, page Video Memory Allocation Video memory is allocated from the total available system memory for the efficient balancing of 2-D/3-D graphics performance and overall system performance. Dynamic allocation of system memory to video memory is as follows: 256 MB total RAM results in 32 MB video RAM 512 MB total RAM results in 64 MB video RAM 1 GB total RAM results in 128 MB video RAM 2 GB total RAM results in 224 MB video RAM Analog Display (VGA) The VGA port supports analog displays. The maximum supported resolution is 2048 x 1536 (QXGA) at a 75 Hz refresh rate Digital Visual Interface (DVI) The DVI-D port supports digital DVI displays. The maximum supported resolution is 1600 x 1200 (UXGA). The DVI port is compliant with the DVI 1.0 specification. 17

18 Intel Desktop Board D945GSEJT Technical Product Specification USB The board supports up to seven USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers. ICH7-M provides the USB controllers for all USB ports. The port arrangement is as follows: Three ports are implemented through a single vertical and a dual-port horizontal connector on the back panel Four ports are routed to two separate front panel USB headers NOTE One of the front panel USB headers supports an Intel Z-U130 USB Solid-State Drive (or compatible device). Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements, even if no device is attached to the cable. Use shielded cable that meets the requirements for full-speed devices. For information about Refer to The location of the USB connectors on the back panel Figure 2-2, page 37 The location of the front panel USB headers Figure 2-4, page ATA Support The board provides three ATA interface connectors: One PATA connector that supports two devices Two SATA connectors that support one device per connector PATA Interface The ICH7-M s PATA controller has one bus-mastering PATA interface that is accessible through a 44-pin connector that is compatible with 2.5 or 3.5 inch PATA hard drives (including 2.5 inch hard drive power support). The PATA interface supports the following modes: Programmed I/O (PIO): processor controls data transfer style DMA: DMA offloads the processor, supporting transfer rates of up to 16 MB/sec. Ultra DMA: DMA protocol on ATA bus supporting host and target throttling and transfer rates of up to 33 MB/sec. ATA-66: DMA protocol on ATA bus supporting host and target throttling and transfer rates of up to 66 MB/sec. ATA-66 protocol is similar to Ultra DMA and is device driver compatible. ATA-100: DMA protocol on ATA bus allows host and target throttling. The ICH7-M s ATA-100 logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to 88 MB/sec. 18

19 Product Description NOTE ATA-66 and ATA-100 are faster timings and require a specialized cable to reduce reflections, noise, and inductive coupling. The PATA interface also supports ATAPI devices (such as CD-ROM drives) and ATA devices using the transfer modes. The BIOS supports Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS) translation modes. The drive reports the transfer rate and translation mode to the BIOS. For information about Refer to The location of the PATA connector Figure 2-4, page SATA Interfaces The ICH7-M s SATA controller offers two independent SATA ports with a theoretical maximum transfer rate of 3.0 Gbits/sec on each port. One device can be installed on each port for a maximum of two SATA devices. A point-to-point interface is used for host to device connections, unlike PATA which supports a master/slave configuration and two devices on each channel. For compatibility, the underlying SATA functionality is transparent to the operating system. The SATA controller supports IDE and AHCI configuration and can operate in both legacy and native modes. In legacy mode, standard ATA I/O and IRQ resources are assigned (IRQ 14 and 15). In Native mode, standard PCI Conventional bus resource steering is used. Native mode is the preferred mode for configurations using the Windows* XP and Windows Vista* operating systems. The board ships with a 1 x 4 power connector and a power cable for powering internal SATA storage devices. SATA power delivery is rated as follows for any combination of hard drives and/or optical drives: 5 V rail: up to 3 A 12 V rail: up to 1.5 A For information about Refer to Obtaining AHCI driver Section 1.2, page 14 The location of the SATA connectors Figure 2-4, page 39 19

20 Intel Desktop Board D945GSEJT Technical Product Specification 1.6 Real-Time Clock Subsystem A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the battery. The clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 VSB applied. NOTE If the battery and AC power fail, custom defaults, if previously saved, will be loaded into CMOS RAM at power-on. When the voltage drops below a certain level, the BIOS Setup program settings stored in CMOS RAM (for example, the date and time) might not be accurate. Replace the battery with an equivalent one. Figure 1-1 on page 11 shows the location of the battery. 1.7 Legacy I/O Controller The Legacy I/O Controller provides the following features: Two serial ports One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support Serial IRQ interface compatible with serialized IRQ support for PCI Conventional bus systems PS/2-style keyboard interface Intelligent power management, including a programmable wake-up event interface PCI Conventional bus power management support The BIOS Setup program provides configuration options for the Legacy I/O controller Serial Ports The serial ports, COM 1 and COM 2, are implemented as two 10-pin headers on the board. The serial ports support data transfers at speeds up to kbits/sec with BIOS support. For information about Refer to The location of the serial port headers Figure 2-4, page 39 20

21 Product Description Parallel Port The parallel port is implemented as a 26-pin header on the board. Use the BIOS Setup program to set the parallel port mode. For information about Refer to The location of the parallel port header Figure 2-4, page PS/2 Keyboard Interface A PS/2 keyboard port is implemented as a 6-pin header on the board. For information about Refer to The location of the keyboard header Figure 2-4, page Audio Subsystem The audio subsystem consists of the following devices: Intel 82801GBM ICH7-M Realtek ALC662 audio codec The audio subsystem supports the following audio interfaces: S/PDIF header Front panel audio header with support for Intel High Definition Audio and AC 97 audio Back panel audio line-out connector Internal mono speaker header NOTE Systems built with an AC 97 front panel will not be able to obtain the Microsoft Windows Vista logo. Table 4 lists the supported functions of the front panel and back panel audio jacks. Table 4. Audio Jack Retasking Support Audio Jack Supports Line In? Supports Line/ Front Out? Supports Rear Out? Supports Center/LFE? Supports Mic? Supports Headphone? Front panel Green No Yes No No No Yes Front panel Pink No No No No Yes No Back panel Green No Yes No No No Yes 21

22 Intel Desktop Board D945GSEJT Technical Product Specification Audio Subsystem Drivers Audio drivers are available from Intel s World Wide Web site. For information about Refer to Obtaining audio drivers Section 1.2, page Audio Connectors and Headers The board contains an audio connector on the back panel and audio headers on the component side of the board. Back panel audio connector: Line out S/PDIF header: 3-pin header Front panel audio header (supports both AC 97 and HD Audio): 10-pin header (for headphones/mic) Internal mono speaker header: 2-pin header Supports a 1.5 W/8 Ω speaker The front/back panel audio connectors are configurable through the audio device drivers. The audio stream for the line-out port is routed according to these dependencies: By default the audio stream is down-mixed to mono and amplified for an internal mono speaker. A connection is detected at the rear line-out port, the audio stream goes to the rear line-out port and the internal mono speaker is disabled. NOTE BIOS status and error beep codes can be heard through an internal speaker if the internal speaker is connected to the internal mono speaker header. For information about Refer to The location and signal names of the audio headers and connectors Section 2.2, page 36 22

23 Product Description 1.9 LAN Subsystem The LAN subsystem consists of the following: Intel 82801GBM ICH7-M Realtek 8111D Gigabit Ethernet Controller for 10/100/1000 Mbits/sec Ethernet LAN connectivity RJ-45 LAN connector with integrated status LEDs Additional features of the LAN subsystem include: CSMA/CD protocol engine LAN connect interface that supports the ethernet controller PCI Conventional bus power management Supports ACPI technology Supports LAN wake capabilities LAN Subsystem Drivers LAN drivers are available from Intel s World Wide Web site. For information about Refer to Obtaining LAN drivers Section 1.2, page 14 23

24 Intel Desktop Board D945GSEJT Technical Product Specification RJ-45 LAN Connector with Integrated LEDs Two LEDs are built into the RJ-45 LAN connector (shown in Figure 1-3). Figure 1-3. LAN Connector LED Locations Table 5 describes the LED states when the board is powered up and the 10/100/1000 Mbits/sec LAN subsystem is operating. Table 5. LAN Connector LED States LED Color State Condition N/A Off LAN link is not established Link (A) Green On Blinking LAN link is established LAN activity occurring N/A Off 10 Mb/s data rate Speed (B) Green On 100 Mb/s data rate Yellow On 1000 Mb/s data rate 1.10 Hardware Management Subsystem The hardware management features enable the board to be compatible with the Wired for Management (WfM) specification. The board has several hardware management features, including the following: Thermal and voltage monitoring Chassis intrusion detection Hardware Monitoring The hardware monitoring and fan control subsystem is based on the Winbond W83627DHG device, which supports the following: Processor and system ambient temperature monitoring Chassis fan speed monitoring Power monitoring of +12 V, +5 V, +5 Vstdby, +3.3 V, and +VCCP SMBus interface 24

25 Product Description Thermal Monitoring Figure 1-4 shows the locations of the thermal sensors and fan headers. Item A B C Description Remote thermal diode, located under the SO-DIMM Thermal diode, located on the processor die Chassis fan header Figure 1-4. Thermal Sensors and Fan Headers 25

26 Intel Desktop Board D945GSEJT Technical Product Specification 1.11 Power Management Power management is implemented at several levels, including: Software support through Advanced Configuration and Power Interface (ACPI) Hardware support: Power connector Fan headers LAN wake capabilities Instantly Available PC technology Wake from USB Wake from PS/2 devices Power Management Event signal (PME#) wake-up support WAKE# signal wake-up 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 board requires an operating system that provides full ACPI support. ACPI features include: Plug and Play (including bus and device enumeration) Power management control of individual devices, add-in boards (some add-in boards may require an ACPI-aware driver), video displays, and hard disk drives Methods for achieving less than 15-watt system operation in the power-on/standby sleeping state A Soft-off feature that enables the operating system to power-off the computer Support for multiple wake-up events (see Table 8 on page 28) Support for a front panel power and sleep mode switch Table 6 lists the system states based on how long the power switch is pressed, depending on how ACPI is configured with an ACPI-aware operating system. Table 6. Effects of Pressing the Power Switch If the system is in this state Off (ACPI G2/G5 Soft off) On (ACPI G0 working state) On (ACPI G0 working state) Sleep (ACPI G1 sleeping state) Sleep (ACPI G1 sleeping state) and the power switch is pressed for Less than four seconds Less than four seconds More than four seconds Less than four seconds More than four seconds the system enters this state Power-on (ACPI G0 working state) Power-off (ACPI G2/G5 Soft off) Fail safe power-off (ACPI G2/G5 Soft off) Wake-up (ACPI G0 working state) Power-off (ACPI G2/G5 Soft off) 26

27 Product Description System States and Power States Under ACPI, the operating system directs all system and device power state transitions. The operating system puts devices in and out of low-power states based on user preferences and knowledge of how devices are being used by applications. Devices that are not being used can be turned off. The operating system uses information from applications and user settings to put the system as a whole into a low-power state. Table 7 lists the power states supported by the board along with the associated system power targets. See the ACPI specification for a complete description of the various system and power states. Table 7. Power States and Targeted System Power Global States G0 working state G1 sleeping state G1 sleeping state G1 sleeping state G2/S5 G3 mechanical off. AC power is disconnected from the computer. Sleeping States Processor States Device States S0 working C0 working D0 working state. S1 Processor stopped S3 Suspend to RAM. Context saved to RAM. S4 Suspend to disk. Context saved to disk. S5 Soft off. Context not saved. Cold boot is required. No power to the system. C1 stop grant No power No power No power No power D1, D2, D3 device specification specific. D3 no power except for wake-up logic. D3 no power except for wake-up logic. D3 no power except for wake-up logic. D3 no power for wake-up logic, except when provided by battery or external source. Targeted System Power (Note 1) Full power > 30 W 5 W < power < 52.5 W Power < 5 W Power < 5 W Power < 5 W (Note 2) (Note 2) (Note 2) No power to the system. Service can be performed safely. Notes: 1. Total system power is dependent on the system configuration, including add-in boards and peripherals powered by the system s power supply. 2. Dependent on the standby power consumption of wake-up devices used in the system. 27

28 Intel Desktop Board D945GSEJT Technical Product Specification Wake-up Devices and Events Table 8 lists the devices or specific events that can wake the computer from specific states. Table 8. Wake-up Devices and Events These devices/events can wake up the computer from this state LAN S1, S3, S4, S5 (Note 1) PME# signal S1, S3, S4, S5 (Note 1) Wake# signal S1, S3, S4, S5 (Note 1) Power switch S1, S3, S4, S5 (Note 1) RTC alarm S1, S3, S4, S5 (Note 1) Serial port S1, S3 USB S1, S3 PS/2 devices S1, S3, S4, S5 (Note 1) Note 1: S4 implies operating system support only. USB ports are turned off during S4/S5 states. NOTE The use of these wake-up events from an ACPI state requires an operating system that provides full ACPI support. In addition, software, drivers, and peripherals must fully support ACPI wake events. 28

29 Product Description Hardware Support The board provides several power management hardware features, including: Fan header LAN wake capabilities Instantly Available PC technology Wake from USB PME# signal wake-up support Wake from PS/2 devices WAKE# signal wake-up support +5V Standby Power Indicator LED LAN wake capabilities and Instantly Available PC technology require power from the +5 V standby line. NOTE The use of Wake from USB technologies from an ACPI state requires an operating system that provides full ACPI support Fan Header The function/operation of the fan header is as follows: The fan is on when the board is in the S0 state. The fan is off when the board is off or in the S3, S4, or S5 state. The chassis fan header supports closed-loop fan control that can adjust the fan speed and is wired to a fan tachometer input. The fan header has a +12 VDC connection. For information about Refer to The locations of the fan header and thermal sensors Figure 1-4, page 25 The signal names of the chassis fan header Table 15, page LAN Wake Capabilities LAN wake capabilities enable remote wake-up of the computer through a network. The LAN subsystem network adapter monitors network traffic at the Media Independent Interface. The board supports LAN wake capabilities with ACPI in the following ways: By Ping By Magic Packet Upon detecting the configured wake packet type, the LAN subsystem asserts a wakeup signal that powers up the computer. 29

30 Intel Desktop Board D945GSEJT Technical Product Specification Instantly Available PC Technology 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 (the hard drive(s) and fan will power off, the front panel LED will blink). When signaled by a wake-up device or event, the system quickly returns to its last known state. Table 8 on page 28 lists the devices and events that can wake the computer from the S3 state. The board supports the PCI Bus Power Management Interface Specification. Add-in boards that also support this specification can participate in power management and can be used to wake the computer. The use of Instantly Available PC technology requires operating system support and PCI 2.3 compliant add-in cards and drivers Wake from USB USB bus activity wakes the computer from an ACPI S1 or S3 state. NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB and support in the operating system PME# Signal Wake-up Support When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, S4, or S5 state (with Wake on PME enabled in the BIOS) Wake from PS/2 Devices PS/2 device activity wakes the computer from an ACPI S1, S3, S4, or S5 state. However, when the computer is in an S4 or S5 state, the only PS/2 activity that will wake the computer is the power key available only on some keyboards WAKE# Signal Wake-up Support When the WAKE# signal on the PCI Express bus is asserted, the computer wakes from an ACPI S1, S3, S4, or S5 state. 30

31 Product Description V Standby Power Indicator LED The +5 V standby power indicator LED shows that power is still present even when the computer appears to be off. Figure 1-5 shows the location of the standby power indicator LED. CAUTION If 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. Figure 1-5. Location of the Standby Power Indicator LED 31

32 Intel Desktop Board D945GSEJT Technical Product Specification ENERGY STAR*, E-Standby, and EuP Compliance The US Department of Energy and the US Environmental Protection Agency have continually revised the ENERGY STAR requirements. Intel has worked directly with these two governmental agencies in the definition of new requirements. This Intel Desktop Board meets the ENERGY STAR requirements listed in Table 9 when used in corresponding system configurations. Table 9. ENERGY STAR Requirements ENERGY STAR Specification Computer Type Req States Capability Adjustments TEC Criteria v4.0 Desktop Computer v4.0 Integrated Computer Idle State (Cat A) Sleep Mode Standby Level With and without WOL (Sleep, Standby) N/A v5.0 Desktop Computer v5.0 Integrated Desktop Computer Off Mode Sleep Mode Idle State Active State With and without additional internal storage Cat A under desktop conventional and desktop proxying operational mode weightings v5.0 Thin Client Off Mode Sleep Mode Idle State (Cat B) With and without WOL (Sleep, Standby) N/A For information about ENERGY STAR requirements and recommended configurations Refer to Intel Desktop Board D945GSEJT also meets the following international program requirements: Korea E-Standby European Union EuP 32

33 2 Technical Reference 2.1 Memory Map Addressable Memory The board utilizes 2 GB of addressable system memory. Typically the address space that is allocated for PCI Conventional bus add-in cards, PCI Express configuration space, BIOS (SPI Flash), and chipset overhead resides above the top of DRAM (total system memory). On a system that has 2 GB of system memory installed, it is not possible to use all of the installed memory due to system address space being allocated for other system critical functions. These functions include the following: BIOS/ SPI Flash (4 MB) Local APIC (19 MB) Direct Media Interface (40 MB) Front side bus interrupts (17 MB) GMCH base address registers, internal graphics ranges Memory-mapped I/O that is dynamically allocated for PCI Conventional add-in cards 33

34 Intel Desktop Board D945GSEJT Technical Product Specification The amount of installed memory that can be used will vary based on add-in cards and BIOS settings. Figure 2-1 shows a schematic of the system memory map. All installed system memory can be used when there is no overlap of system addresses. Figure 2-1. Detailed System Memory Address Map 34

35 Technical Reference Table 10 lists the system memory map. Table 10. System Memory Map Address Range (decimal) Address Range (hex) Size Description 1024 K K FFFFFFFF 2048 MB Extended memory 960 K K F FFFFF 64 KB Runtime BIOS 896 K K E EFFFF 64 KB Reserved 800 K K C DFFFF 96 KB Potential available high DOS memory (open to the PCI bus). Dependent on video adapter used. 640 K K A C7FFF 160 KB Video memory and BIOS 639 K K 9FC00-9FFFF 1 KB Extended BIOS data (movable by memory manager software) 512 K K FBFF 127 KB Extended conventional memory 0 K K FFFF 512 KB Conventional memory 35

36 Intel Desktop Board D945GSEJT Technical Product Specification 2.2 Connectors and Headers CAUTION Only the following connectors/headers have overcurrent protection: Back panel and front panel USB and PS/2. The other internal connectors/headers are not overcurrent protected and should connect only to devices inside the computer s chassis, such as fans and internal peripherals. Do not use these connectors/headers to power devices external to the computer s chassis. A fault in the load presented by the external devices could cause damage to the computer, the power cable, and the external devices themselves. NOTE Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements, even if no device is attached to the cable. Use shielded cable that meets the requirements for full-speed devices. This section describes the board s connectors and headers. The connectors and headers can be divided into these groups: Back panel I/O connectors (see page 37) Component-side connectors and headers (see page 39) 36

37 Technical Reference Back Panel Back Panel Connectors Figure 2-2 shows the location of the back panel connectors. Item A B C D E F G Description 12 V power connector VGA port DVI-D connector USB port USB ports LAN connector (RJ-45) Audio line out Figure 2-2. Back Panel 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. 37

38 Intel Desktop Board D945GSEJT Technical Product Specification I/O Shield The I/O shield provided with the board allows access to all back panel connectors and is compatible with standard mini-itx and microatx chassis. As an added benefit for system configurations with wireless PCI Express Mini Card solutions, the I/O shield also provides pre-cut holes for user installation of up to three external wireless antennas. Figure 2-3 shows an I/O shield reference diagram. Figure 2-3. Back Panel Connectors 38

39 Technical Reference Component-side Connectors and Headers Figure 2-4 shows the locations of the component-side connectors and headers. Figure 2-4. Component-side Connectors and Headers 39

40 Intel Desktop Board D945GSEJT Technical Product Specification Table 11 lists the component-side connectors and headers identified in Figure 2-4. Table 11. Component-side Connectors and Headers Shown in Figure 2-4 Item/callout from Figure 2-4 A Description +12 V internal power connector (ATX12V) B Serial port header (COM 2) C Serial port header (COM 1) D E F G H I J K L M N O P Q R S T U V W PS/2 keyboard port header Reserved PATA connector (44-pin) Reserved Chassis fan header Chassis intrusion header SATA connectors SATA power connector Parallel port header Reserved Reserved Front panel header Front panel wireless activity LED header PCI Express Mini Card connector PCI Conventional bus add-in card connector S/PDIF header Front panel USB header Internal mono speaker header Front panel audio header Front panel USB header (with Intel Z-U130 USB Solid-State Drive, or compatible device, support) 40

41 Technical Reference Signal Tables for the Connectors and Headers Table 12. Serial Port Header (COM 1 and COM 2) Pin Signal Name Pin Signal Name 1 DCD (Data Carrier Detect) 2 RXD# (Receive Data) 3 TXD# (Transmit Data) 4 DTR (Data Terminal Ready) 5 Ground 6 DSR (Data Set Ready) 7 RTS (Request To Send) 8 CTS (Clear To Send) 9 RI (Ring Indicator) 10 Key (no pin) Table 13. PS/2 Keyboard Port Header Pin Signal Name Pin Signal Name 1 Data 2 Key (no pin) 3 Ground 4 +5 V 5 Clock 6 Key (no pin) Table 14. PATA Connector (44-Pin) Pin Signal Name Pin Signal Name 1 #Reset 2 GND 3 Data 7 4 Data 8 5 Data 6 6 Data 9 7 Data 5 8 Data 10 9 Data 4 10 Data Data 3 12 Data Data 2 14 Data Data 1 16 Data Data 0 18 Data GND 20 Key (no pin) 21 DMA Request 22 GND 23 #IOW 24 GND 25 #IOR 26 GND 27 IO Chrdy 28 Cable Select 29 DMA Acknowledge 30 GND 31 IRQ14 32 #IOCS16 33 Addr 1 34 Passed Diagnostics 35 Addr 0 36 Addr 2 37 #CS0 (1F0-1F7) 38 #CS1 (3f6-3f7) 39 #Active (LED driver) 40 GND 41 +5V_DC (logic) 42 +5V_DC (motor) 43 GND 44 Type (GND = ATA) 41

42 Intel Desktop Board D945GSEJT Technical Product Specification Table 15. Chassis Fan Header Pin Signal Name 1 Control V 3 Tach Table 16. Chassis Intrusion Header Pin Signal Name 1 Intruder# 2 Ground Table 17. SATA Connectors Pin Signal Name 1 Ground 2 TXP 3 TXN 4 Ground 5 RXN 6 RXP 7 Ground Table 18. SATA Power Connector Pin Signal Name VDC 2 Ground 3 Ground 4 +5 VDC 42

43 Technical Reference Table 19. Parallel Port Header Pin Standard Signal Name ECP Signal Name EPP Signal Name 1 STROBE# STROBE# WRITE# 2 AUTOFD# AUTOFD#, HOSACK DATASTB# 3 PD0 PD0 PD0 4 FAULT# FAULT#, PERIPHREQST# FAULT# 5 PD1 PD1 PD1 6 INT# INT#, REVERSERQST# RESET# 7 PD2 PD2 PD2 8 SLCTIN# SLCTIN# ADDRSTB# 9 PD3 PD3 PD3 10 GROUND GROUND GROUND 11 PD4 PD4 PD4 12 GROUND GROUND GROUND 13 PD5 PD5 PD5 14 GROUND GROUND GROUND 15 PD6 PD6 PD6 16 GROUND GROUND GROUND 17 PD7 PD7 PD7 18 GROUND GROUND GROUND 19 ACK# ACK# INTR 20 GROUND GROUND GROUND 21 BUSY BUSY#, PERIPHACK WAIT# 22 GROUND GROUND GROUND 23 PERROR PE, ACKREVERSE# PE 24 GROUND GROUND GROUND 25 SELECT SELECT SELECT 26 KEY (no pin) KEY (no pin) KEY (no pin) Table 20. Front Panel Wireless Activity LED Header Pin Signal Name 1 LED (+) 2 Ground Table 21. S/PDIF Header Pin Signal Name 1 Ground 2 S/PDIF out 3 VCC (5 V) 43

44 Intel Desktop Board D945GSEJT Technical Product Specification Table 22. Internal Mono Speaker Header Pin Signal Name Table 23. Front Panel Audio Header for Intel HD Audio Pin Signal Name Pin Signal Name 1 [Port 1] Left channel 2 Ground 3 [Port 1] Right channel 4 PRESENCE# (Dongle present) 5 [Port 2] Right channel 6 [Port 1] SENSE_RETURN 7 SENSE_SEND (Jack detection) 8 Key (no pin) 9 [Port 2] Left channel 10 [Port 2] SENSE_RETURN Table 24. Front Panel Audio Header for AC 97 Audio Pin Signal Name Pin Signal Name 1 MIC 2 AUD_GND 3 MIC_BIAS 4 AUD_GND 5 FP_OUT_R 6 FP_RETURN_R 7 AUD_5V 8 KEY (no pin) 9 FP_OUT_L 10 FP_RETURN_L Table 28. Front Panel USB Header Pin Signal Name Pin Signal Name 1 +5 VDC 2 +5 VDC 3 D- 4 D- 5 D+ 6 D+ 7 Ground 8 Ground 9 KEY (no pin) 10 No Connect Table 29. Front Panel USB Header (with Intel Z-U130 USB Solid-State Drive, or Compatible Device, Support) Pin Signal Name Pin Signal Name 1 +5 VDC 2 +5 VDC 3 D- 4 D- 5 D+ 6 D+ 7 Ground 8 Ground 9 KEY (no pin) 10 LED# 44

45 Technical Reference Add-in Card Connectors The board has the following add-in card connectors: PCI Express Mini Card (rev 1.2 compliant) connector PCI Conventional (rev 2.3 compliant) bus connector Note the following considerations for the PCI Conventional bus connector: The PCI Conventional bus connector is bus master capable. SMBus signals are routed to the PCI Conventional bus connector. This enables PCI Conventional bus add-in boards with SMBus support to access sensor data on the board. The specific SMBus signals are as follows: The SMBus clock line is connected to pin A40. The SMBus data line is connected to pin A41. The PCI Conventional bus connector also supports single-slot and dual-slot riser cards for use of up to two bus master PCI expansion cards. In order to support two PCI bus master expansion cards, the riser card must support the following PCI signal routing: Pin A11: additional 33 MHz PCI clock Pin B10: additional PCI request signal (i.e., PREQ#2) Pin B14: additional PCI Grant signal (i.e., GNT#2) Power Supply Connectors The board has the following power supply connectors: External Power Supply the board can be powered with a 12 V external power supply though a DC connector on the back panel. The rear 12 VDC jack accepts plugs with an inner diameter (ID) of 2.5 mm and an outer diameter (OD) of 5.5 mm, where the inner contact is 12 V and the shell is GND. Internal Power Supply the board can, alternatively, be powered by an internal ATX12V 2 x 2 power connector. Table 25. ATX12V Power Connector Pin Signal Name Pin Signal Name 1 Ground 2 Ground V V For information about Refer to Power supply considerations Section 2.5.1, page 52 NOTE Based on power consumption test results, the recommended power rating is 60 W (12 V/5 A). Configuration specific power requirements can be estimated by using the test results shown in Table 31 and Table 32. Total power consumption will depend on the system configuration selected by the integrator. See Section 2.7 for minimum and maximum load configurations. 45