Intel® Desktop Board D945GTP Technical Product Specification May 2005 Order Number: D14070-001US The Intel® Desktop Board D945GTP 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 D945GTP Specification Update.
Revision History Revision -001 Revision History First release of the Specification. Date Intel® Desktop Board D945GTP Technical Product May 2005 This product specification applies to only the standard Intel Desktop Board D945GTP with BIOS identifier NT94510J.86A. Changes to this specification will be published in the Intel Desktop Board D945GTP Specification Update before being incorporated into a revision of this document. INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS.
Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for the Intel® Desktop Board D945GTP. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Board D945GTP and its components to the vendors, system integrators, and other engineers and technicians who need this level of information.
Intel Desktop Board D945GTP Technical Product Specification Other Common Notation iv # Used after a signal name to identify an active-low signal (such as USBP0#) (NxnX) When used in the description of a component, N indicates component type, xn are the relative coordinates of its location on the Desktop Board D945GTP, and X is the instance of the particular part at that general location. For example, J5J1 is a connector, located at 5J. It is the first connector in the 5J area.
Contents 1 Product Description 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 1.13 Overview ...................................................................................................................... 10 1.1.1 Feature Summary.......................................................................................... 10 1.1.2 Manufacturing Options .................................................................................. 11 1.1.3 Board Layout ......................................
Intel Desktop Board D945GTP Technical Product Specification 2 Technical Reference 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 Introduction .................................................................................................................. 45 Memory Resources ...................................................................................................... 45 2.2.1 Addressable Memory................................................................................
Contents 3.8 3.9 Adjusting Boot Speed................................................................................................... 84 3.8.1 Peripheral Selection and Configuration ......................................................... 84 3.8.2 BIOS Boot Optimizations............................................................................... 84 BIOS Security Features ...............................................................................................
Intel Desktop Board D945GTP Technical Product Specification Tables 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. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. viii Feature Summary ........................................................................................................ 10 Manufacturing Options .................................................................................................
1 Product Description What This Chapter Contains 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 1.13 Overview ...................................................................................................................... 10 Online Support ............................................................................................................. 15 Processor ..................................................................................................................... 15 System Memory ..
Intel Desktop Board D945GTP Technical Product Specification 1.1 Overview 1.1.1 Feature Summary Table 1 summarizes the major features of the board. Table 1. Feature Summary Form Factor microATX (9.60 inches by 9.60 inches [243.84 millimeters by 243.
Product Description 1.1.2 Manufacturing Options Table 2 describes the manufacturing options. Not every manufacturing option is available in all marketing channels. Please contact your Intel representative to determine which manufacturing options are available to you. Table 2. Manufacturing Options Audio Subsystem Intel® High Definition Audio subsystem in one of the following configurations: • 8-channel (7.
Intel Desktop Board D945GTP Technical Product Specification 1.1.3 Board Layout Figure 1 shows the location of the major components. A D B C E F G H FF EE I DD CC J BB AA K Z L Y M N X T V W S R Q P O U OM17835 Figure 1. Board Components Table 3 lists the components identified in Figure 1.
Product Description Table 3.
Intel Desktop Board D945GTP Technical Product Specification 1.1.4 Block Diagram Figure 2 is a block diagram of the major functional areas.
Product Description 1.2 Online Support To find information about… Visit this World Wide Web site: Intel Desktop Board D945GTP under “Desktop Board Products” or “Desktop Board Support” http://www.intel.com/design/motherbd http://support.intel.com/support/motherboards/desktop Available configurations for the Desktop Board D945GTP http://developer.intel.com/design/motherbd/tp/tp_available.htm Processor data sheets http://www.intel.com/design/litcentr ICH7 addressing http://developer.intel.
Intel Desktop Board D945GTP 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-sided DIMMS with x16 organization are not supported. • • • • • 4 GB maximum total system memory. Refer to Section 2.2.1 on page 45 for information on the total amount of addressable memory.
Product Description 1.4.1 Memory Configurations The Intel 82945G GMCH supports two types of memory organization: • • Dual channel (Interleaved) mode. This mode offers the highest throughput for real world applications. Dual channel mode is enabled when the installed memory capacities of both DIMM channels are equal. Technology and device width can vary from one channel to the other but the installed memory capacity for each channel must be equal.
Intel Desktop Board D945GTP 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 Channel A, DIMM 0 Channel A, DIMM 1 1 GB Channel B, DIMM 0 Channel B, DIMM 1 OM17123 Figure 4. Dual Channel (Interleaved) Mode Configuration with Two DIMMs Figure 5 shows a dual channel configuration using three DIMMs.
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, the DIMMs are matched between DIMM0 and DIMM1 of both channels. 256 MB 512 MB Channel A, DIMM 0 Channel A, DIMM 1 256 MB 512 MB Channel B, DIMM 0 Channel B, DIMM 1 OM17124 Figure 6.
Intel Desktop Board D945GTP 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 DIMM0 (blue) socket of Channel A is populated. Channel B is not populated. 256 MB Channel A, DIMM 0 Channel A, DIMM 1 Channel B, DIMM 0 Channel B, DIMM 1 OM17125 Figure 7.
Product Description 1.5 Intel® 945G Chipset The Intel 945G chipset consists of the following devices: • • Intel 82945G Graphics Memory Controller Hub (GMCH) with Direct 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 Desktop Board D945GTP Technical Product Specification • Video ⎯ Hardware motion compensation for MPEG2 • ⎯ Software DVD at 30 fps full screen Display ⎯ Integrated 24-bit 400 MHz RAMDAC ⎯ Up to 2048 x 1536 at 75 Hz refresh (QXGA) ⎯ DDC2B compliant interface ⎯ With Advanced Digital Display 2 or 2+ (ADD2/ADD2+) cards, support for TV-out / TV-in and DVI digital display connections ⎯ Supports flat panels up to 2048 x 1536 at 60Hz or digital CRT/HDTV at 1920 x 1080 at 85 Hz (with ADD2/ADD2+) • • ⎯ Two
Product Description 1.5.1.3 Advanced Digital Display (ADD2/ADD2+) Card Support The GMCH routes two multiplexed DVO ports that are each capable of driving up to a 200 MHz pixel clock to the PCI Express x16 connector. The DVO ports can be paired for a dual channel configuration to support up to a 400 MHz pixel clock. When an ADD2/ADD2+ card is detected, the Intel GMA950 graphics controller is enabled and the PCI Express x16 connector is configured for DVO mode.
Intel Desktop Board D945GTP Technical Product Specification 1.5.3 IDE Support The board provides five IDE interface connectors: • • 1.5.3.1 One parallel ATA IDE connector that supports two devices Four serial ATA IDE connectors that support one device per connector Parallel ATE IDE Interface The ICH7’s Parallel ATA IDE controller has one bus-mastering Parallel ATA IDE interface.
Product Description NOTE Many Serial ATA drives use new low-voltage power connectors and require adaptors or power supplies equipped with low-voltage power connectors. For more information, see: http://www.serialata.org/ For information about Refer to The location of the Serial ATA IDE connectors Figure 20, page 56 1.5.3.3 Serial ATA RAID (Optional) The optional ICH7-R supports the following RAID (Redundant Array of Independent Drives) levels: • • • • 1.5.3.4 RAID 0 - data striping.
Intel Desktop Board D945GTP 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 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.
Product Description 1.8 Legacy I/O Controller The legacy I/O controller provides the following features: • • • • • • • 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 Conventional bus systems PS/2-style mouse and keyboard interfaces Interface for one 1.44 MB or 2.
Intel Desktop Board D945GTP 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: • • • • 1.9.1 Advanced jack sense for the back panel audio jacks that enables the audio codec to recognize the device that is connected to an audio port.
Product Description Front Panel Audio Connectors Mic In Line Out Surround Left and Right/Retasking Jack [Black] Side Surround Left and Right/ Line In/Retasking Jack [Blue] Center channel and LFE (Subwoofer)/ Retasking Jack [Orange] S/PDIF Digital Audio Out Optical Mic In/Retasking Jack [Pink] Line Out/Retasking Jack [Lime Green] OM17816 Figure 9. Front/Back Panel Audio Connector Options for 8-Channel (7.1) Audio Subsystem Figure 10 is a block diagram of the 8-channel (7.1) audio subsystem.
Intel Desktop Board D945GTP Technical Product Specification 1.9.4 6-Channel (5.1) Audio Subsystem The 6-channel (5.1) audio subsystem includes 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 in Figure 11.
Product Description 1.10 LAN Subsystem The LAN subsystem consists of the following: • Physical layer interface device.
Intel Desktop Board D945GTP Technical Product Specification 1.10.2.2 RJ-45 LAN Connector with Integrated LEDs Two LEDs are built into the RJ-45 LAN connector (shown in Figure 13). Green LED Yellow LED OM15076 Figure 13. LAN Connector LED Locations Table 5 describes the LED states when the board is powered up and the 10/100 Mbits/sec LAN subsystem is operating. Table 5. LAN Connector LED States LED Color LED State Condition Green Off LAN link is not established. On LAN link is established.
Product Description 1.10.3.2 RJ-45 LAN Connector with Integrated LEDs Two LEDs are built into the RJ-45 LAN connector (as shown in Figure 14). Table 6 describes the LED states when the board is powered up and the Gigabit LAN subsystem is operating. Green LED Green/Yellow LED OM16513 Figure 14. LAN Connector LED Locations Table 6. LED Color Left LED State Condition Off LAN link is not established. On LAN link is established. Blinking LAN activity is occurring.
Intel Desktop Board D945GTP Technical Product Specification • • Healing systems remotely, regardless of the operating system or system state: ⎯ Intel AMT provides out-of-band diagnostics and recovery capabilities for IT organizations to remotely diagnose and repair PCs after software, operating system, or hardware failures ⎯ Alerting and event logging help IT organizations detect and diagnose problems quickly to reduce end-user downtime Protecting the enterprise against malicious software attacks: ⎯ Inte
Product Description 1.10.5 Alert Standard Format (ASF) Support (Optional) NOTE Alter Standard Format (ASF) support is available only on boards that use the Intel 82573E Ethernet Controller or the Intel 82562GZ PLC device.
Intel Desktop Board D945GTP Technical Product Specification 1.11.1 Hardware Monitoring and Fan Control ASIC The features of the hardware monitoring and fan control ASIC include: • • • • • Internal ambient temperature sensor Two remote thermal diode sensors for direct monitoring of processor temperature and ambient temperature sensing Power supply monitoring of five voltages (+5 V, +12 V, +3.3 VSB, +1.
Product Description 1.11.4 Thermal Monitoring Figure 15 shows the location of the sensors and fan connectors. 1 A 3 B 4 1 1 D C 3 F E OM17837 Item Description A Remote ambient temperature sensor B Thermal diode, located on processor die C Ambient temperature sensor, internal to hardware monitoring and fan control ASIC D Processor fan E Rear chassis fan F Front chassis fan Figure 15.
Intel Desktop Board D945GTP Technical Product Specification 1.12 Power Management Power management is implemented at several levels, including: • • 1.12.
Product Description 1.12.1.1 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.
Intel Desktop Board D945GTP Technical Product Specification 1.12.1.3 Wake-up Devices and Events Table 9 lists the devices or specific events that can wake the computer from specific states. Table 9.
Product Description 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 system control. When an ACPI-enabled system receives the correct command, the power supply removes all non-standby voltages.
Intel Desktop Board D945GTP Technical Product Specification 1.12.2.3 LAN Wake Capabilities CAUTION For LAN wake capabilities, the +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to provide adequate standby current when implementing LAN wake capabilities can damage the power supply. LAN wake capabilities enable remote wake-up of the computer through a network. The LAN network adapter monitors network traffic at the Media Independent Interface.
Product Description 1.12.2.5 Resume on Ring The operation of Resume on Ring can be summarized as follows: • • • 1.12.2.6 Resumes operation from ACPI S1 or S3 states Detects incoming call similarly for external and internal modems Requires modem interrupt be unmasked for correct operation Wake from USB USB bus activity wakes the computer from ACPI S1 or S3 states. NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB. 1.12.2.
Intel Desktop Board D945GTP Technical Product Specification 1.12.2.10 +5 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 16 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.
2 Technical Reference What This Chapter Contains 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 Introduction .................................................................................................................. 45 Memory Resources ...................................................................................................... 45 DMA Channels ............................................................................................................. 47 Fixed I/O Map...
Intel Desktop Board D945GTP 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 will vary based on add-in cards and BIOS settings. Figure 17 shows a schematic of the system memory map. All installed system memory can be used when there is no overlap of system addresses.
Technical Reference 2.2.2 Memory Map Table 10 lists the system memory map. Table 10. System Memory Map Address Range (decimal) Address Range (hex) Size Description 1024 K - 4194304 K 100000 - FFFFFFFF 4095 MB Extended memory 960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIOS 896 K - 960 K E0000 - EFFFF 64 KB Reserved 800 K - 896 K C8000 - DFFFF 96 KB Potential available high DOS memory (open to the PCI Conventional bus). Dependent on video adapter used.
Intel Desktop Board D945GTP Technical Product Specification 2.4 Fixed I/O Map Table 12. I/O Map Address (hex) Size Description 0000 - 00FF 256 bytes 0170 - 0177 01F0 - 01F7 8 bytes 8 bytes Used by the Desktop Board D945GTP. Refer to the ICH7 data sheet for dynamic addressing information.
Technical Reference 2.5 PCI Configuration Space Map Table 13.
Intel Desktop Board D945GTP 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 Windows ME and uses the first 16 interrupts. The APIC is supported in Windows 2000 and Windows XP and supports a total of 24 interrupts. Table 14.
Technical Reference 2.7 PCI Conventional Interrupt Routing Map This section describes interrupt sharing and how the interrupt signals are connected between the PCI Conventional bus connectors and onboard PCI Conventional devices. The PCI Conventional specification describes how interrupts can be shared between devices attached to the PCI Conventional bus. In most cases, the small amount of latency added by interrupt sharing does not affect the operation or throughput of the devices.
Intel Desktop Board D945GTP Technical Product Specification NOTE In PIC mode, the ICH7 can connect each PIRQ line internally to one of the IRQ signals (3, 4, 5, 6, 7, 9, 10, 11, 12, 14, and 15). Typically, a device that does not share a PIRQ line will have a unique interrupt. However, in certain interrupt-constrained situations, it is possible for two or more of the PIRQ lines to be connected to the same IRQ signal. Refer to Table 14 for the allocation of PIRQ lines to IRQ signals in APIC mode.
Technical Reference 2.8 Connectors CAUTION Only the following connectors 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 computer’s chassis.
Intel Desktop Board D945GTP 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 legend (Table 16) lists the colors used (when applicable). A D C B F E G H J K L I M N O OM17558 Figure 18. Back Panel Connectors for 8-Channel (7.
Technical Reference 2.8.1.2 Back Panel Connectors For 6-Channel (5.1) Audio Subsystem Figure 19 shows the location of the back panel connectors for boards equipped with the 6-channel (5.1) audio subsystem. The back panel connectors are color-coded. The figure legend (Table 17) lists the colors used (when applicable). A B I G D C E F H J K OM17559 Figure 19. Back Panel Connectors for 6-Channel (5.1) Audio Subsystem Table 17 lists the back panel connectors identified in Figure 19.
Intel Desktop Board D945GTP Technical Product Specification 2.8.2 Component-side Connectors Figure 20 shows the locations of the component-side connectors. A B CD 1 2 9 10 E F 1 2 3 G 4 1 3 X W 10 2 1 10 2 1 4 1 V U 1 H 2 10 T 24 2 1 23 40 2 39 1 2 1 S R Q P O 1 34 33 L N M 1 K I J 1 2 1 10 1 9 1 1 2 1 1 3 1 OM17839 Figure 20.
Technical Reference Table 18 lists the component-side connectors identified in Figure 20. Table 18.
Intel Desktop Board D945GTP Technical Product Specification Table 19.
Technical Reference Table 23. Processor Fan Connector Pin Signal Name 1 Ground 2 +12 V 3 FAN_TACH 4 FAN_CONTROL Table 24.
Intel Desktop Board D945GTP Technical Product Specification 2.8.2.1 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 power supplies with either 2 x 10 or 2 x 12 main power cables.
Technical Reference 2.8.2.2 Add-in Card Connectors The board has the following add-in card connectors: • • • PCI Express x16: one connector supporting simultaneous transfer speeds up to 8 GBytes/sec. PCI Express x1: one PCI Express x1 connector. The x1 interface supports simultaneous transfer speeds up to 500 MBytes/sec. PCI Conventional (rev 2.3 compliant) bus: two PCI Conventional bus add-in card connectors. The SMBus is routed to PCI Conventional bus connector 2 only (ATX expansion slot 6).
Intel Desktop Board D945GTP Technical Product Specification 2.8.2.4 Front Panel Connector This section describes the functions of the front panel connector. Table 28 lists the signal names of the front panel connector. Figure 21 is a connection diagram for the front panel connector. Table 28.
Technical Reference 2.8.2.4.2 Reset Switch Connector [Purple] Pins 5 and 7 [Purple] can be connected to a momentary single pole, single throw (SPST) type switch that is normally open. When the switch is closed, the board resets and runs the POST. 2.8.2.4.3 Power/Sleep LED Connector [Green] Pins 2 and 4 [Green] can be connected to a one- or two-color LED. Table 29 shows the possible states for a one-color LED. Table 30 shows the possible states for a two-color LED. Table 29.
Intel Desktop Board D945GTP Technical Product Specification 2.8.2.5 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, and 8 comprise one USB port. Use only a front panel USB connector that conforms to the USB 2.0 specification for highspeed USB devices.
Technical Reference 2.9 Jumper Block CAUTION Do not move the jumper with the power on. Always turn off the power and unplug the power cord from the computer before changing a jumper setting. Otherwise, the board could be damaged. Figure 24 shows the location of the jumper block. The jumper block determines the BIOS Setup program’s mode. Table 31 describes the jumper settings for the three modes: normal, configure, and recovery.
Intel Desktop Board D945GTP Technical Product Specification 2.10 Mechanical Considerations 2.10.1 Form Factor The board is designed to fit into an ATX- or microATX-form-factor chassis. Figure 25 illustrates the mechanical form factor of the board. Dimensions are given in inches [millimeters]. The outer dimensions are 9.60 inches by 9.60 inches [243.84 millimeters by 243.84 millimeters]. Location of the I/O connectors and mounting holes are in compliance with the ATX specification. 1.800 [45.72] 6.
Technical Reference 2.10.2 I/O Shield The 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 boards with the 6-channel (5.1) audio subsystem. Dimensions are given in millimeters [inches]. The figures also indicate the position of each cutout.
Intel Desktop Board D945GTP Technical Product Specification 162.3 REF [6.390] 1.6 ± 0.12 [0.063 ± 0.005] 20 ± 0.254 TYP [0.787 ± 0.10] 159.2 ± 0.12 [6.268 ± 0.005] 1.55 REF [0.061] 22.45 [0.884] 7.01 [0.276] Ø 1.00 [0.039] 8x R 0.5 MIN A A 0.00 [0.00] 11.81 [0.465] 11.81 [0.465] 12.04 [0.474] 146.88 [5.783] 113.63 [4.473] 93.74 [3.690] 56.31 [2.217] 26.91 [1.059] 20.28 [0.799] 0.00 [0.00] 8.81 [0.347] 14.17 [0.558] Pictorial View OM17933 Figure 27.
Technical Reference 2.11 Electrical Considerations 2.11.1 DC Loading Table 32 lists the DC loading characteristics of the boards. This data is based on a DC analysis of all active components within the board that impact its power delivery subsystems. The analysis does not include PCI add-in cards. Minimum values assume a light load placed on the board that is similar to an environment with no applications running and no USB current draw.
Intel Desktop Board D945GTP 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 damage that will halt fan operation. Table 33 lists the current capability of the fan connectors. Table 33. Fan Connector Current Capability Fan Connector Maximum Available Current Processor fan 3.
Technical Reference 2.12 Thermal Considerations CAUTION A chassis with a maximum internal ambient temperature of 38 oC at the processor fan inlet is a requirement. Use a processor heatsink that provides omni-directional airflow (similar to the type shown in Figure 28) to maintain required airflow across the processor voltage regulator area. OM16996 Figure 28.
Intel Desktop Board D945GTP 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 temperature of up to 85 oC in an open chassis. Figure 29 shows the locations of the localized high temperature zones.
Technical Reference Table 34 provides maximum case temperatures for the components that are sensitive to thermal changes. The operating temperature, current load, or operating frequency could affect case temperatures. Maximum case temperatures are important when considering proper airflow to cool the board. Table 34.
Intel Desktop Board D945GTP Technical Product Specification 2.14 Environmental Table 35 lists the environmental specifications for the board. Table 35.
Technical Reference 2.15 Regulatory Compliance This section describes the Desktop Boards’ compliance with U.S. and international safety and electromagnetic compatibility (EMC) regulations. 2.15.1 Safety Regulations Table 36 lists the safety regulations that the Desktop Board D945GTP complies with when correctly installed in a compatible host system. Table 36.
Intel Desktop Board D945GTP Technical Product Specification 2.15.2.1 FCC Compliance Statement (USA) Product Type: D945GTP Desktop Board 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.
Technical Reference Dutch Dit product is in navolging van de bepalingen van Europees Directief 89/336/EEC & 73/23/EEC. Suomi Tämä tuote noudattaa EU-direktiivin 89/336/EEC & 73/23/EEC määräyksiä. Français Ce produit est conforme aux exigences de la Directive Européenne 89/336/EEC & 73/23/EEC. Deutsch Dieses Produkt entspricht den Bestimmungen der Europäischen Richtlinie 89/336/EEC & 73/23/EEC. Icelandic Þessi vara stenst reglugerð Evrópska Efnahags Bandalagsins númer 89/336/ EEC & 73/23/EEC.
Intel Desktop Board D945GTP Technical Product Specification 2.15.5 Product Certification Markings (Board Level) Table 38 lists the board’s product certification markings. Table 38. Product Certification Markings Description Marking UL joint US/Canada Recognized Component mark. Includes adjacent UL file number for Intel Desktop Boards: E210882 (component side). FCC Declaration of Conformity logo mark for Class B equipment; includes Intel name and D945GTP model designation (component side). CE mark.
3 Overview of BIOS Features What This Chapter Contains 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Introduction .................................................................................................................. 79 BIOS Flash Memory Organization ............................................................................... 80 Resource Configuration ............................................................................................... 80 System Management BIOS (SMBIOS) .....................
Intel Desktop Board D945GTP Technical Product Specification Table 39 lists the BIOS Setup program menu features. Table 39.
Overview of BIOS Features automatically configured for Logical Block Addressing (LBA) and to PIO Mode 3 or 4, depending on the capability of the drive. You can override the auto-configuration options by specifying manual configuration in the BIOS Setup program.
Intel Desktop Board D945GTP Technical Product Specification 5. The operating system loads. While the operating system is loading, USB keyboards and mice are recognized and may be used to configure the operating system. 6. After the operating system loads the USB drivers, all legacy and non-legacy USB devices are recognized by the operating system, and Legacy USB support from the BIOS is no longer used.
Overview of BIOS Features 3.7 Boot Options In the BIOS Setup program, the user can choose to boot from a diskette drive, hard drives, CD-ROM, or the network. The default setting is for the diskette drive to be the first boot device, the hard drive second, and the ATAPI CD-ROM third. The fourth device is disabled. 3.7.1 CD-ROM Boot Booting from CD-ROM is supported in compliance to the El Torito bootable CD-ROM format specification.
Intel Desktop Board D945GTP Technical Product Specification 3.8 Adjusting Boot Speed These factors affect system boot speed: • • 3.8.1 Selecting and configuring peripherals properly Optimized BIOS boot parameters Peripheral Selection and Configuration The following techniques help improve system boot speed: • • • • 3.8.2 Choose a hard drive with parameters such as “power-up to data ready” less than eight seconds, that minimize hard drive startup delays.
Overview of BIOS Features 3.9 BIOS Security Features The BIOS includes security features that restrict access to the BIOS Setup program and who can boot the computer. A supervisor password and a user password can be set for the 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 Setup program. This is the supervisor mode.
Intel Desktop Board D945GTP Technical Product Specification 86
4 Error Messages and Beep Codes What This Chapter Contains 4.1 4.2 4.3 4.4 Speaker ....................................................................................................................... 87 BIOS Beep Codes........................................................................................................ 87 BIOS Error Messages .................................................................................................. 87 Port 80h POST Codes ........................................
Intel Desktop Board D945GTP 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 determining the point where an error occurred. Displaying the POST-codes requires a PCI bus add-in card, often called a POST card.
Error Messages and Beep Codes Table 46.
Intel Desktop Board D945GTP Technical Product Specification Table 46.
Error Messages and Beep Codes Table 46. POST Code Port 80h POST Codes (continued) Description of POST Operation DXE Drivers E7 Waiting for user input E8 Checking password E9 Entering BIOS setup EA TBD – Flash Update EB Calling Legacy Option ROMs EE TBD – Calling INT 19. One beep unless silent boot is enabled.
Intel Desktop Board D945GTP Technical Product Specification Table 47.
