Intel D945GNT Product Specification

Intel D945GNT Manual

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  • Intel D945GNT | Product Specification - Page 1
    May 2005 Order Number: D14069-001US The Intel® Desktop Board D945GNT 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 D945GNT Specification Update.
  • Intel D945GNT | Product Specification - Page 2
    Intel® Desktop Board D945GNT Technical Product Specification. Date May 2005 This product specification applies to only the standard Intel Desktop Board D945GNT with BIOS identifier NT94510J.86A. Changes to this specification will be published in the Intel Desktop Board D945GNT Specification Update
  • Intel D945GNT | Product Specification - Page 3
    on the Desktop Board D945GNT A map of the resources of the Desktop Board The features supported by the BIOS Setup program A description of the BIOS error messages, beep codes, and POST codes Typographical Conventions This section contains information about the conventions used in this specification
  • Intel D945GNT | Product Specification - Page 4
    Intel Desktop Board D945GNT Technical Product Specification Other Common Notation # (NxnX) GB GB/sec Gbits/sec KB Kbit kbits/sec MB MB/sec Mbit Mbit/sec xxh x.x V * Used after a signal name to identify an active-low signal (such as USBP0#) When used in the description of a component, N indicates
  • Intel D945GNT | Product Specification - Page 5
    1.2 Online Support ...15 1.3 Processor ...15 1.4 System Memory ...16 1.4.1 Memory Configurations 17 1.5 Intel® 945G Chipset ...21 1.5.1 Intel 945G Graphics Subsystem 21 1.5.2 USB ...23 1.5.3 IDE Support 24 1.5.4 Real-Time Clock, CMOS SRAM, and Battery 26 1.6 PCI Express Connectors 26 1.7 IEEE
  • Intel D945GNT | Product Specification - Page 6
    82 3.4 System Management BIOS (SMBIOS 83 3.5 Legacy USB Support...83 3.6 BIOS Updates ...84 3.6.1 Language Support 84 3.6.2 Custom Splash Screen 84 3.7 Boot Options ...85 3.7.1 CD-ROM Boot 85 3.7.2 Network Boot 85 3.7.3 Booting Without Attached Devices 85 3.7.4 Changing the Default Boot Device
  • Intel D945GNT | Product Specification - Page 7
    the Standby Power Indicator LED 44 17. Detailed System Memory Address Map 48 18. Back Panel Connectors for 8-Channel (7.1) Audio Subsystem 56 19. Back Panel Connectors for 6-Channel (5.1) Audio Subsystem 57 20. Component-side Connectors 58 21. Connection Diagram for Front Panel Connector 64 22
  • Intel D945GNT | Product Specification - Page 8
    Intel Desktop Board D945GNT Technical Product Specification 6. LAN Connector LED States 34 7. Effects of Pressing the Power Switch 39 8. Power States and Targeted System Power 40 9. Wake-up Devices and Events 41 10. System Memory Map 49 11. DMA Channels ...49 12. I/O Map ...50 13. PCI
  • Intel D945GNT | Product Specification - Page 9
    1.2 Online Support ...15 1.3 Processor ...15 1.4 System Memory ...16 1.5 Intel® 945G Chipset ...21 1.6 PCI Express Connectors 26 1.7 IEEE-1394a Connectors (Optional 26 1.8 Legacy I/O Controller 27 1.9 Audio Subsystem ...28 1.10 LAN Subsystem ...32 1.11 Hardware Management Subsystem 36 1.12 Power
  • Intel D945GNT | Product Specification - Page 10
    533, or DDR2 400 MHz DIMMs • Support for up to 4 GB of system memory Chipset Intel® 945G Chipset, consisting of: • Intel® 82945G Graphics Memory Controller Hub (GMCH) • Intel® 82801G I/O Controller Hub (ICH7) Video Intel® GMA950 onboard graphics subsystem Audio Refer to Table 2 on page 11 for
  • Intel D945GNT | Product Specification - Page 11
    1394a connectors (one back panel connector, two front-panel connectors) LAN subsystem The board provides one of the following: • Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel® 82573E/82573V/82574V Gigabit Ethernet Controller • 10/100 Mbits/sec LAN subsystem using the Intel® 82562GX
  • Intel D945GNT | Product Specification - Page 12
    Intel Desktop Board D945GNT Technical Product Specification 1.1.3 Board Layout Figure 1 shows the location of the major components. B D G A C E FH I HH J K L GG FF M EE DD N CC O BB P AA Q Y WV U T Z X Figure 1. Board Components Table 3 lists the components identified in
  • Intel D945GNT | Product Specification - Page 13
    D Audio codec E Front panel audio connector F Ethernet device G PCI Conventional bus add-in card connectors [2] H PCI Express x16 bus add-in card connector I Back panel connectors J +12V power connector (ATX12V) K Rear chassis fan connector L LGA775 processor socket M Intel 82945G
  • Intel D945GNT | Product Specification - Page 14
    ATA IDE Interface LGA775 Processor Socket System Bus (1066/800/533 MHz) PCI Express x16 Interface PCI Express x16 Connector Intel 945G Chipset Intel 82945G Graphics and Memory Controller Hub (GMCH) Gigabit Ethernet Controller (Optional) LAN Connector USB Back Panel/Front Panel USB Ports
  • Intel D945GNT | Product Specification - Page 15
    Processor data sheets ICH7 addressing Custom splash screens Audio software and utilities LAN software and drivers Supported video modes Intel® Active Management Technology Visit this World Wide Web site: http://www.intel.com/design/motherbd http://support.intel.com/support/motherboards/desktop
  • Intel D945GNT | Product Specification - Page 16
    Intel Desktop Board D945GNT Technical Product Specification 1.4 System Memory The board has four DIMM sockets and support the following memory features: • 1.8 V (only) DDR2 SDRAM DIMMs with gold-plated contacts • Unbuffered, single-sided or double-sided DIMMs with the following restriction: Double-
  • Intel D945GNT | Product Specification - Page 17
    channel to the other. If different speed DIMMs are used between channels, the slowest memory timing will be used. Figure 3 illustrates the memory channel and DIMM configuration. NOTE The DIMM0 sockets of both channels are blue. The DIMM1 sockets of both channels are black. Channel A, DIMM 0 Channel
  • Intel D945GNT | Product Specification - Page 18
    Intel Desktop Board D945GNT Technical Product Specification 1.4.1.1 Dual Channel (Interleaved) Mode Configurations Figure 4 shows a dual channel configuration using two DIMMs. In this example, the DIMM0 (blue) sockets of both channels are populated with identical DIMMs. 1 GB 1 GB Channel A, DIMM
  • Intel D945GNT | Product Specification - Page 19
    Product Description Figure 6 shows a dual channel configuration using four DIMMs. In this example, the combined capacity of the two DIMMs in Channel A equal the combined capacity of the two DIMMs in Channel B. Also,
  • Intel D945GNT | Product Specification - Page 20
    Intel Desktop Board D945GNT Technical Product Specification 1.4.1.2 Single Channel (Asymmetric) Mode Configurations NOTE Dual channel (Interleaved) mode configurations provide the highest memory throughput. Figure 7 shows a single channel configuration using one DIMM. In this example, only the
  • Intel D945GNT | Product Specification - Page 21
    Media Interface (DMI) interconnect • Intel 82801G I/O Controller Hub (ICH7) with DMI interconnect The GMCH component provides interfaces to the CPU, memory, PCI Express, and the DMI interconnect. The component also provides integrated graphics capabilities supporting 3D, 2D and display capabilities
  • Intel D945GNT | Product Specification - Page 22
    +) ⎯ Two multiplexed DVO port interfaces with 200 MHz pixel clocks using an ADD2/ADD2+ card • Dynamic Video Memory Technology (DVMT) support up to 224 MB • Intel® Zoom Utility For information about DVMT Obtaining graphics software and utilities Refer to Section 1.5.1.2, page 22 Section 1.2, page
  • Intel D945GNT | Product Specification - Page 23
    back panel connectors adjacent to the audio connectors • Four ports are routed to two separate front panel USB connectors 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
  • Intel D945GNT | Product Specification - Page 24
    Intel Desktop Board D945GNT Technical Product Specification 1.5.3 IDE Support The board provides five IDE interface connectors: • One parallel ATA IDE connector that supports two devices • Four serial ATA IDE connectors that support one device per connector 1.5.3.1 Parallel ATE IDE Interface The
  • Intel D945GNT | Product Specification - Page 25
    power connectors. For more information, see: http://www.serialata.org/ For information about The location of the Serial ATA IDE connectors Refer to Figure 20, page 58 1.5.3.3 Serial ATA RAID (Optional) The optional ICH7-R supports the following RAID to be used in a RAID 0 configuration. • RAID 1 -
  • Intel D945GNT | Product Specification - Page 26
    Intel Desktop Board D945GNT Technical Product Specification 1.5.4 Real-Time Clock, CMOS SRAM, and Battery 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
  • Intel D945GNT | Product Specification - Page 27
    wake-up event interface • PCI Conventional bus power management support The BIOS Setup program provides configuration options for the legacy I/O controller. 1.8.1 Serial Port The Serial port A connector is located on the back panel. The serial port supports data transfers at speeds up to 115
  • Intel D945GNT | Product Specification - Page 28
    Intel Desktop Board D945GNT Technical Product Specification 1.9 Audio Subsystem The board supports the Intel High Definition audio subsystem based on the Sigmatel 9223 or the Sigmatel 9220 audio codec. The audio subsystem supports the following features: • Advanced jack sense for the back panel
  • Intel D945GNT | Product Specification - Page 29
    the following: • Intel 82801G I/O Controller Hub (ICH7) • Sigmatel 9223 audio codec • Microphone input that supports a single dynamic, condenser, or electret microphone The back panel audio connectors are configurable through the audio device drivers. The available configurable audio ports are shown
  • Intel D945GNT | Product Specification - Page 30
    Intel Desktop Board D945GNT Technical Product Specification Figure 10 is a block diagram of the 8-channel (7.1) audio subsystem. 82801G I/O Controller Hub (ICH7) Intel High Definition Audio Link Sigmatel 9223 Audio Codec Line Out Mic In Line In/Side Surround L-R/Retasking Jack Line Out/
  • Intel D945GNT | Product Specification - Page 31
    the following: • Intel 82801G I/O Controller Hub (ICH7) • Sigmatel 9220 audio codec • Microphone input that supports a single dynamic, condenser, or electret microphone The back panel audio connectors are configurable through the audio device drivers. The available configurable audio ports are shown
  • Intel D945GNT | Product Specification - Page 32
    : • CSMA/CD protocol engine • LAN connect interface that supports the 82562GX and 82562GZ • PCI Conventional bus power management ⎯ Supports ACPI technology ⎯ Supports LAN wake capabilities 1.10.1 LAN Subsystem Software LAN software and drivers are available from Intel's World Wide Web site. For
  • Intel D945GNT | Product Specification - Page 33
    (10/100/1000 Mbits/sec) LAN subsystem includes the Intel 82573/82574 controller and an RJ-45 LAN connector with integrated status LEDs. 1.10.3.1 Intel® 82573E/82573V/82574V Gigabit Ethernet Controller The Intel 82573E/82573V/82574V Gigabit Ethernet Controller supports the following features: • PCI
  • Intel D945GNT | Product Specification - Page 34
    /or recovery capabilities for networked platforms. With Intel AMT, IT organizations can easily get accurate platform information, and can perform remote updating, diagnostics, debugging, and repair of a system, regardless of the state of the operating system and the power state of the system. Intel
  • Intel D945GNT | Product Specification - Page 35
    • Remote troubleshooting and recovery that can significantly reduce desk-side visits and potentially increasing efficiency of IT technical staff ⎯ System event log ⎯ IDE-Redirection or PXE boot; Network drive or remote CD boot ⎯ Serial over LAN ⎯ OOB diagnostics ⎯ Remote control ⎯ Remote BIOS update
  • Intel D945GNT | Product Specification - Page 36
    ASF support for PCI Express x1 bus add-in LAN cards and PCI Conventional bus add-in LAN cards installed in PCI Conventional bus slot 2: • Monitoring of system firmware progress events, including: ⎯ BIOS present ⎯ Primary processor initialization ⎯ Memory initialization ⎯ Video initialization
  • Intel D945GNT | Product Specification - Page 37
    for direct monitoring of processor temperature and ambient temperature sensing • Power supply monitoring of five voltages connector. When the chassis cover is removed, the mechanical switch is in the closed position. 1.11.3 Fan Monitoring Fan monitoring can be implemented using Intel® Desktop
  • Intel D945GNT | Product Specification - Page 38
    Intel Desktop Board D945GNT Technical Product Specification 1.11.4 Thermal Monitoring Figure 15 shows the location of the sensors and fan connectors. 4 1 1 3 A B C 4 1 D 13 Item A B C D E F G G F E OM17741 Description Remote ambient temperature sensor Thermal diode, located on processor
  • Intel D945GNT | Product Specification - Page 39
    . The use of ACPI with this 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
  • Intel D945GNT | Product Specification - Page 40
    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 8 lists the power states supported by the board along with the associated system power targets. See the ACPI specification for a complete description of
  • Intel D945GNT | Product Specification - Page 41
    by default in the BIOS Setup program. Setting this option to Power On will enable a wake-up event from LAN in the S5 state. 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
  • Intel D945GNT | Product Specification - Page 42
    Intel Desktop Board D945GNT Technical Product Specification NOTE The use of Resume on Ring and Wake from USB technologies from an ACPI state requires an operating system that provides full ACPI support. 1.12.2.1 Power Connector ATX12V-compliant power supplies can turn off the system power through
  • Intel D945GNT | Product Specification - Page 43
    -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, PCI Express add-in cards, and drivers. 1.12.2.5 Resume on Ring
  • Intel D945GNT | Product Specification - Page 44
    Intel Desktop Board D945GNT Technical Product Specification 1.12.2.9 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. 1.12.2.10 +5 V Standby Power Indicator LED The +5 V standby power indicator LED shows
  • Intel D945GNT | Product Specification - Page 45
    component on the desktop board that is specifically designed to enhance platform used unencrypted in plain-text form. The TPM is specifically designed to shield unencrypted keys and platform authentication information from software-based attacks. For information about TPM Refer to http://www.intel
  • Intel D945GNT | Product Specification - Page 46
    Intel Desktop Board D945GNT Technical Product Specification 46
  • Intel D945GNT | Product Specification - Page 47
    the system memory map, Table 11 lists the DMA 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 4 GB of system memory installed, it is not possible to use all of the installed memory due to system
  • Intel D945GNT | Product Specification - Page 48
    Intel Desktop Board D945GNT Technical Product Specification • MCH base address registers, internal graphics ranges, PCI Express ports (up to 512 MB) • Memory-mapped I/O that is dynamically allocated for PCI Conventional and PCI Express add- in cards The amount of installed memory that can be used
  • Intel D945GNT | Product Specification - Page 49
    used. Video memory and BIOS Extended BIOS data (movable by memory manager software) Extended conventional memory Conventional memory 2.3 DMA Channels Table 11. DMA Channels DMA Channel Number 0 1 2 3 4 5 6 7 Data Width 8 or 16 bits 8 or 16 bits 8 or 16 bits 8 or 16 bits 8 or 16 bits 16 bits
  • Intel D945GNT | Product Specification - Page 50
    Intel Desktop Board D945GNT Technical Product Specification 2.4 Fixed I/O Map Table 12. I/O Map Address (hex) Size Description 0000 - 00FF 0170 - 0177 01F0 - 01F7 256 bytes 8 bytes 8 bytes Used by the Desktop Board D945GNT register Reset control but can be changed to another address
  • Intel D945GNT | Product Specification - Page 51
    2 PCI Conventional bus connector 3 PCI Conventional bus connector 4 IEEE-1394a controller (if present) Intel 82562 10/100 Mbits/sec LAN PLC (if present) Notes: 1. Present only when a PCI Express x16 graphics card is installed. 2. Bus number is dynamic and can change based on add-in cards used. 51
  • Intel D945GNT | Product Specification - Page 52
    Intel Desktop Board D945GNT Technical Product Specification 2.6 Interrupts The interrupts can be routed through either the Programmable Interrupt Controller (PIC) or the Advanced Programmable Interrupt Controller (APIC) portion of the ICH7 component. The PIC is supported in Windows 98 SE and
  • Intel D945GNT | Product Specification - Page 53
    as a reference, assume an add-in card using INTA is plugged into PCI Conventional bus connector 3. In PCI bus connector 3, INTA is connected to PIRQB, which is already connected to the ICH7 audio controller. The add-in card in PCI Conventional bus connector 3 now shares an interrupt with the onboard
  • Intel D945GNT | Product Specification - Page 54
    Intel Desktop Board D945GNT Technical Product Specification Table 15. PCI Interrupt Routing Map PCI Interrupt Source ICH7 LAN PCI bus connector 1 PCI bus connector 2 PCI bus connector 3 PCI bus connector 4 IEEE-1394a controller (optional) PIRQA PIRQB INTD INTC INTA ICH7 PIRQ Signal Name PIRQC
  • Intel D945GNT | Product Specification - Page 55
    have overcurrent protection: back panel USB, front panel USB, and PS/2. The other internal connectors 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 to power devices external to the
  • Intel D945GNT | Product Specification - Page 56
    Intel Desktop Board D945GNT Technical Product Specification 2.8.1.1 Back Panel Connectors For 8-Channel (7.1) Audio Subsystem Figure 18 shows the location of the back panel connectors for boards equipped with the 8-channel (7.1) audio subsystem. The back panel connectors are color-coded. The figure
  • Intel D945GNT | Product Specification - Page 57
    17) lists the colors used (when applicable). AC D I G B E F H JK OM17559 Figure 19. Back Panel Connectors for 6-Channel (5.1) Audio Subsystem Table 17 lists the back panel connectors identified in Figure 19. NOTE The back panel audio line out connector is designed to power headphones or
  • Intel D945GNT | Product Specification - Page 58
    Intel Desktop Board D945GNT Technical Product Specification 2.8.2 Component-side Connectors Figure 20 shows the locations of the component-side connectors. A B C D E F GH I J 4 12 1 9 10 1 3 12 K 34 BB AA 10 21 10 21 12 Z 10 Y X 4 1 L 24 2 23 1 M 1 2 40 2 34 1 39 1 33 W V UTS
  • Intel D945GNT | Product Specification - Page 59
    -in card connector 1 F Front panel audio connector G PCI Conventional bus add-in card connector 2 H PCI Conventional bus add-in card connector 1 I PCI Express x16 bus add-in card connector J Rear chassis fan connector K +12V power connector (ATX12V) L Processor fan connector M SCSI
  • Intel D945GNT | Product Specification - Page 60
    Intel Desktop Board D945GNT Technical Product Specification Table 19. Front Panel Audio Connector Pin Signal Name Pin 1 Port E [Port 1] Left Channel 2 3 Port E [Port 1] Right Channel 4 5 Port F [Port 2] Right Channel 6 7 Port E [Port 1] and Port F [Port 2] 8 Sense send (jack
  • Intel D945GNT | Product Specification - Page 61
    23. Processor Fan Connector Pin Signal Name 1 Ground 2 +12 V 3 FAN_TACH 4 FAN_CONTROL 2.8.2.1 Chassis Fan Connectors The board has two standard and one optional chassis fan connectors: • Front chassis fan • Rear chassis fan • Auxiliary fan connector (optional) Table 24 lists the signal
  • Intel D945GNT | Product Specification - Page 62
    Intel Desktop Board D945GNT Technical Product Specification 2.8.2.2 Power Supply Connectors The board has power supply connectors: • Main power - a 2 x 12 connector. This connector is compatible with 2 x 10 connectors previously used on Intel desktop boards. The board supports the use of ATX12V
  • Intel D945GNT | Product Specification - Page 63
    x1 link when the Intel GMA950 graphics controller is enabled. 2.8.2.4 Auxiliary Front Panel Power/Sleep LED Connector Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector. Table 28. Auxiliary Front Panel Power/Sleep LED Connector Pin Signal Name
  • Intel D945GNT | Product Specification - Page 64
    Intel Desktop Board D945GNT Technical Product Specification 2.8.2.5 Front Panel Connector This section describes the functions of the front panel connector. Table 29 lists the signal names of the front panel connector. Figure 21 is a connection diagram for the front panel connector. Table 29.
  • Intel D945GNT | Product Specification - Page 65
    board resets and runs the POST. 2.8.2.5.3 Power/Sleep LED Connector [ listed in Table 30 and Table 31 are suggested colors only. Actual LED colors are product- or customer-specific. 2.8.2.5.4 Power Switch Connector [Red] Pins 6 and 8 [Red] can be connected to a front panel momentary-contact power
  • Intel D945GNT | Product Specification - Page 66
    Intel Desktop Board D945GNT Technical Product Specification 2.8.2.6 Front Panel USB Connectors Figure 22 is a connection diagram for the front panel USB connectors. # INTEGRATOR'S NOTES • The +5 V DC power on the USB connector is fused. • Pins 1, 3, 5, and 7 comprise one USB port. • Pins 2, 4, 6,
  • Intel D945GNT | Product Specification - Page 67
    32 describes the jumper settings for the three modes: normal, configure, and recovery. When the jumper is set to configure mode and the computer is powered-up, the BIOS compares the processor version and the microcode version in the BIOS and reports if the two match. 31 J7J3 Figure 24. Location of
  • Intel D945GNT | Product Specification - Page 68
    Intel Desktop Board D945GNT Technical Product Specification 2.10 Mechanical Considerations 2. 9.60 inches [304.80 millimeters by 243.84 millimeters]. Location of the I/O connectors and mounting holes are in compliance with the ATX specification. 6.500 [165.10] 6.100 [154.94] 1.800 [45.72] 5.200
  • Intel D945GNT | Product Specification - Page 69
    back panel I/O shield for the board must meet specific dimension and material requirements. Systems based on this board need the back panel I/O shield to pass certification testing. Figure 26 shows the I/O shield for boards with the 8-channel (7.1) audio subsystem. Figure 27 shows the I/O shield for
  • Intel D945GNT | Product Specification - Page 70
    Intel Desktop Board D945GNT Technical Product Specification 1.55 REF [0.061] 22.45 [0.884] 7.01 [0.276] Ø 1.00 [0.039] A 0.00 [0.00] 11.81 [0.465 .74 [3.690] 113.63 [4.473] 146.88 [5.783] Pictorial View OM17933 Figure 27. I/O Shield Dimensions for Boards with the 6-Channel (5.1) Audio Subsystem 70
  • Intel D945GNT | Product Specification - Page 71
    specific processor values or memory configurations but are based on the minimum and maximum current draw possible from the board's power delivery subsystems to the processor, memory, and USB ports. Use the datasheets for add-in cards, such as PCI, to determine the overall system power requirements
  • Intel D945GNT | Product Specification - Page 72
    Intel Desktop Board D945GNT Technical Product Specification 2.11.3 Fan Connector Current Capability CAUTION The processor fan must be connected to the processor fan connector, not to a chassis fan connector. Connecting the processor fan to a chassis fan connector may result in onboard component
  • Intel D945GNT | Product Specification - Page 73
    internal ambient temperature of 38 oC at the processor fan inlet is a requirement. Use a processor heatsink that provides omni-directional airflow (similar processor and/or voltage regulator or, in some instances, damage to the board. For a list of chassis that have been tested with Intel desktop
  • Intel D945GNT | Product Specification - Page 74
    Intel Desktop Board D945GNT Technical Product Specification CAUTION Ensure that proper airflow is maintained in the processor voltage regulator circuit. Failure to do so may result in damage to the voltage regulator circuit. The processor voltage regulator area (item A in Figure 29) can reach a
  • Intel D945GNT | Product Specification - Page 75
    oC (under bias, with heatsink) For information about Intel Pentium 4 processor datasheets and specification updates Refer to Section 1.2, page 15 2.13 Reliability The Mean Time Between Failures (MTBF) prediction is calculated using component and subassembly random failure rates. The calculation
  • Intel D945GNT | Product Specification - Page 76
    Intel Desktop Board D945GNT Technical Product Specification 2.14 Environmental Table 36 lists the environmental specifications for the board. Table 36. Environmental Specifications Parameter Temperature Non-Operating Operating Shock Unpackaged Packaged Vibration Unpackaged Packaged Specification
  • Intel D945GNT | Product Specification - Page 77
    Equipment - Safety - Part 1: General Requirements (International) 2.15.2 EMC Regulations Table 38 lists the EMC regulations the Desktop Board D945GNT complies with when correctly installed in a compatible host system. Table 38. EMC Regulations Regulation FCC (Class B) ICES-003 (Class B) EN55022
  • Intel D945GNT | Product Specification - Page 78
    Intel Desktop Board D945GNT Technical Product Specification 2.15.2.1 FCC Compliance Statement (USA) Product Type: D945GNT Desktop Board This 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
  • Intel D945GNT | Product Specification - Page 79
    -direktiv 89/336/EEC & 73/23/EEC. 2.15.4 Recycling Considerations Intel encourages its customers to recycle its products and their components (e.g., batteries, circuit boards, plastic enclosures, etc.) whenever possible. In the U.S., a list of recyclers in your area can be found at: http://www.eiae.
  • Intel D945GNT | Product Specification - Page 80
    Intel Desktop Board D945GNT Technical Product Specification 2.15.5 Product Certification Markings (Board Level) Table 39 lists adjacent Intel supplier code number, used until a board is considered Pb-free per the RoHS definition - This must follow the Pb-free symbol. It is abbreviated per spec
  • Intel D945GNT | Product Specification - Page 81
    81 3.2 BIOS Flash Memory Organization 82 3.3 Resource Configuration 82 3.4 System Management BIOS (SMBIOS 83 3.5 Legacy USB Support...83 3.6 BIOS Updates ...84 3.7 Boot Options ...85 3.8 Adjusting Boot Speed 86 3.9 BIOS Security Features 87 3.1 Introduction The boards use an Intel BIOS that
  • Intel D945GNT | Product Specification - Page 82
    Intel Desktop Board D945GNT Technical Product Specification Table 40 lists the BIOS Setup program menu features. Table 40. BIOS Setup Program Menu Bar Maintenance Main Advanced Security Clears passwords and displays processor information Displays processor and memory configuration Configures
  • Intel D945GNT | Product Specification - Page 83
    and error logging Non-Plug and Play operating systems, such as Windows NT*, require an additional interface for obtaining the SMBIOS information. The BIOS supports an SMBIOS table interface for such operating systems. Using this support, an SMBIOS service-level application running on a non-Plug and
  • Intel D945GNT | Product Specification - Page 84
    in the Windows environment. Using this utility, the BIOS can be updated from a file on a hard disk, a 1.44 MB diskette, or a CD-ROM, or from the file location on the Web. • Intel® Flash Memory Update Utility, which requires creation of a boot diskette and manual rebooting of the system. Using this
  • Intel D945GNT | Product Specification - Page 85
    format specification. Under the Boot menu in the BIOS Setup program, ATAPI CD-ROM is listed as a boot device. Boot devices are defined in priority order. Accordingly, if there is not a bootable CD in the CD-ROM drive, the system will attempt to boot from the next defined drive. 3.7.2 Network Boot
  • Intel D945GNT | Product Specification - Page 86
    graphic images and changing video modes. In the Peripheral Configuration submenu, disable the LAN device if it will not be used. This can reduce up to four seconds of option ROM boot time. NOTE It is possible to optimize the boot process to the point where the system boots so quickly that the Intel
  • Intel D945GNT | Product Specification - Page 87
    BIOS Setup program and for booting the computer, with the following restrictions: • The supervisor password gives unrestricted access to view and change all the Setup options in the BIOS can enter either password to boot the computer. • For enhanced security, use different passwords for the
  • Intel D945GNT | Product Specification - Page 88
    Intel Desktop Board D945GNT Technical Product Specification 88
  • Intel D945GNT | Product Specification - Page 89
    message describing the problem (see Table 44). Table 44. Beep Codes Type Memory error Thermal warning Pattern Three long beeps Four alternating beeps: High tone, low tone, high tone, low tone Frequency 1280 Hz High tone: 2000 Hz Low tone: 1600 Hz 4.3 BIOS Error Messages Table 45 lists the error
  • Intel D945GNT | Product Specification - Page 90
    Intel Desktop Board D945GNT Technical Product Specification 4.4 Port 80h POST Codes During the POST, the BIOS generates diagnostic progress codes (POST-codes) to I/O port 80h. If the POST fails, execution stops and the last POST code generated is left at port 80h. This code is useful for
  • Intel D945GNT | Product Specification - Page 91
    and Beep Codes Table 47. Port 80h POST Codes POST Code 10 11 12 13 21 22 23 24 25 26 27 28 50 51 52 53 - 57 58 59 5A 5B 5C 5D 70 71 72 78 79 7A Description of POST Operation Host Processor Power-on initialization of the host processor (Boot Strap Processor) Host processor Cache initialization
  • Intel D945GNT | Product Specification - Page 92
    Intel Desktop Board D945GNT Technical Product Specification Table 47. Port 80h POST Codes (continued) POST Code 90 91 92 93 94 95 98 99 9A 9B B0 B1 B2 B3 B8 B9 BA BC Dy E0 E2 E1, E3 E4 E5 E6 Description of POST Operation Keyboard (PS2 or USB) Resetting keyboard Disabling keyboard Detecting
  • Intel D945GNT | Product Specification - Page 93
    and Beep Codes Table 47. Port 80h POST Codes (continued) POST Code E7 E8 E9 EA EB EE EF Description of POST Operation DXE Drivers Waiting for user input Checking password Entering BIOS setup TBD - Flash Update Calling Legacy Option ROMs TBD - Calling INT 19. One beep unless silent boot is
  • Intel D945GNT | Product Specification - Page 94
    Intel Desktop Board D945GNT Technical Product Specification Table 48. Typical Port 80h POST Sequence POST Code 21 22 23 25 28 34 E4 12 13 50 51 92 90 94 95 EB 58 5A 92 90 94 5A 28 90 94 E7 01 00 Description Initializing a chipset component Reading SPD from memory DIMMs Detecting presence of
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May 2005
Order Number:
D14069-001US
The Intel
®
Desktop Board D945GNT 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 D945GNT Specification Update.
Intel
®
Desktop Board
D945GNT
Technical Product Specification