Intel D945GBO Product Specification
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- Intel D945GBO | Product Specification - Page 1
® Desktop Board D945GBO Technical Product Specification January 2006 Order Number: D36107-001US The Intel® Desktop Board D945GBO may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized errata - Intel D945GBO | Product Specification - Page 2
, test equipment, etc. may not be supported without further evaluation by Intel. Intel Corporation may have patents or pending patent applications the absence or characteristics of any features or instructions marked "reserved" or "undefined." Intel reserves these for future definition and shall have - Intel D945GBO | Product Specification - Page 3
connectors, power and environmental requirements, and the BIOS for the Intel® Desktop Board D945GBO. It describes the standard product and available Board D945GBO A map of the resources of the Desktop Board The features supported by the BIOS Setup program A description of the BIOS error messages, - Intel D945GBO | Product Specification - Page 4
Intel Desktop Board D945GBO Technical Product Specification Other Common Notation # (NxnX) GB GB/sec Gbits/sec KB Kbit kbits/sec MB MB/sec Mbit Mbit/sec - Intel D945GBO | Product Specification - Page 5
Board Layout 12 1.2.4 Block Diagram 14 1.3 Online Support ...15 1.4 Processor ...15 1.5 System Memory ...16 1.5.1 Memory Configurations 17 1.6 Intel® 945G Chipset ...21 1.6.1 Intel 945G Graphics Subsystem 21 1.6.2 USB ...23 1.6.3 IDE Support 24 1.6.4 Real-Time Clock, CMOS SRAM, and Battery - Intel D945GBO | Product Specification - Page 6
Intel Desktop Board D945GBO Technical Product Specification 2 Technical Reference 2.1 Memory Resources ...45 2.1.1 Addressable 80 3.3.2 PCI IDE Support 80 3.4 System Management BIOS (SMBIOS 81 3.5 Legacy USB Support...81 3.6 BIOS Updates ...82 3.6.1 Language Support 82 3.6.2 Custom Splash Screen - Intel D945GBO | Product Specification - Page 7
65 24. Localized High Temperature Zones 69 Tables 1. Feature Summary ...10 2. Manufacturing Options 11 3. Board Components Shown in Figure 1 13 4. Supported Memory Configurations 16 5. LAN Connector LED States 34 6. Effects of Pressing the Power Switch 37 7. Power States and Targeted System - Intel D945GBO | Product Specification - Page 8
Intel Desktop Board D945GBO Technical Product Specification 11. I/O Map ...48 12. PCI Configuration Space Map 49 13. Interrupts ...50 14. PCI Interrupt Routing Map 51 15. - Intel D945GBO | Product Specification - Page 9
1 Product Description What This Chapter Contains 1.1 Power Connector Terminology Change 9 1.2 Overview ...10 1.3 Online Support ...15 1.4 Processor ...15 1.5 System Memory ...16 1.6 Intel® 945G Chipset ...21 1.7 PCI Express* Connectors 30 1.8 IEEE-1394a Connectors 30 1.9 Legacy I/O Controller 30 - Intel D945GBO | Product Specification - Page 10
x16 bus add-in card connector • Support for PCI Local Bus Specification Revision 2.3 • Support for PCI Express Revision 1.0a • Suspend to RAM support • Wake on PCI, RS-232, front panel, PS/2 devices, and USB ports • Support for Intel® Quick Resume Technology Drivers (Intel® QRTD) continued 10 - Intel D945GBO | Product Specification - Page 11
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 Parallel Port One 25-pin D-Sub - Intel D945GBO | Product Specification - Page 12
Intel Desktop Board D945GBO Technical Product Specification 1.2.3 Board Layout Figure 1 shows the location of the major components. A B C FF EE DD D CC E BB AA Z Y X W VU T S R Q PO Figure 1. - Intel D945GBO | Product Specification - Page 13
O Front panel connector P Front chassis fan connector Q Auxiliary front panel power LED connector R Intel 82801GH I/O Controller Hub (ICH7DH) S LGA775 processor socket T Intel 82945G GMCH U Remote thermal sensor V Processor core power connector W Processor fan connector X DIMM - Intel D945GBO | Product Specification - Page 14
Parallel ATA IDE Interface LGA775 Processor Socket System Bus (1066/800 MHz) PCI Express x16 Interface PCI Express x16 Connector Intel 945G Chipset Intel 82945G Graphics and Memory Controller Hub (GMCH) Legacy I/O Controller LPC Bus Serial Port Parallel Port (Optional) PS/2 Mouse PS/2 Keyboard - Intel D945GBO | Product Specification - Page 15
Custom splash screens Audio software and utilities LAN software and drivers Supported video modes Visit this World Wide Web site: http://www.intel.com/design/motherbd http://support.intel.com/support/motherboards/desktop http://developer.intel.com/design/motherbd/bo/bo_available.htm http://www - Intel D945GBO | Product Specification - Page 16
Intel Desktop Board D945GBO Technical Product Specification 1.5 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 D945GBO | Product Specification - Page 17
Product Description 1.5.1 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 - Intel D945GBO | Product Specification - Page 18
Intel Desktop Board D945GBO Technical Product Specification 1.5.1.1 Dual Channel (Interleaved) Mode Configurations Figure 4 shows a dual channel configuration using two DIMMs. In this example, the DIMM0 (blue) - Intel D945GBO | 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, the DIMMs are matched between DIMM0 and DIMM1 of both channels. 256 MB 512 MB 256 - Intel D945GBO | Product Specification - Page 20
Intel Desktop Board D945GBO Technical Product Specification 1.5.1.2 Single Channel (Asymmetric) Mode Configurations NOTE Dual channel (Interleaved) mode configurations provide the highest memory throughput. Figure 7 shows a single - Intel D945GBO | Product Specification - Page 21
and the DMI interconnect. The component also provides integrated graphics capabilities supporting 3D, 2D and display capabilities. The ICH7DH is a centralized controller for the board's I/O paths. For information about The Intel 945G chipset Resources used by the chipset Refer to http://developer - Intel D945GBO | Product Specification - Page 22
ADD2+ card • Dynamic Video Memory Technology (DVMT) support up to 224 MB • Intel® Zoom Utility For information about DVMT Obtaining graphics software use of DVMT requires operating system driver support. 1.6.1.3 Advanced Digital Display (ADD2/ADD2+) Card Support The GMCH routes two multiplexed DVO - Intel D945GBO | Product Specification - Page 23
for the Intel GMA950 graphics controller is available as a downloadable document. For information about Supported video modes for the board Refer to Section 1.3, page 15 1.6.2 USB The board supports up to eight USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers. The - Intel D945GBO | Product Specification - Page 24
of up to 33 MB/sec. • ATA-66: DMA protocol on IDE 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 IDE bus allows host and target throttling - Intel D945GBO | Product Specification - Page 25
/ For information about The location of the Serial ATA IDE connectors Refer to Figure 16, page 54 1.6.3.3 Serial ATA RAID The ICH7DH supports the following RAID (Redundant Array of Independent Drives) levels: • RAID 0 - data striping. Multiple physical drives can be teamed together to create one - Intel D945GBO | Product Specification - Page 26
Intel Desktop Board D945GBO Technical Product Specification CAUTION Risk of explosion if the battery is replaced with an incorrect type. Batteries should be recycled where possible. - Intel D945GBO | Product Specification - Page 27
Product Description WAARSCHUWING Er bestaat ontploffingsgevaar als de batterij wordt vervangen door een onjuist type batterij. Batterijen moeten zoveel mogelijk worden gerecycled. Houd u bij het weggooien van gebruikte batterijen aan de plaatselijke milieuwetgeving. ATENÇÃO Haverá risco de explosão - Intel D945GBO | Product Specification - Page 28
Intel Desktop Board D945GBO Technical Product Specification OSTRZEŻENIE Istnieje niebezpieczeństwo wybuchu w przypadku zastosowania niewłaściwego typu baterii. Zużyte baterie należy w miarę możliwoś - Intel D945GBO | Product Specification - Page 29
Product Description 29 - Intel D945GBO | Product Specification - Page 30
Intel Desktop Board D945GBO Technical Product Specification 1.7 PCI Express* Connectors The board provides the following PCI Express connectors: • One PCI Express x16 connector supporting simultaneous transfer speeds up to 8 GBytes/sec • One PCI Express x1 connector. The x1 interface supports - Intel D945GBO | Product Specification - Page 31
1.9.4 Keyboard and Mouse Interface PS/2 keyboard and mouse connectors are located on the back panel. NOTE The keyboard is supported in the bottom PS/2 connector and the mouse is supported in the top PS/2 connector. Power to the computer should be turned off before a keyboard or mouse is connected - Intel D945GBO | Product Specification - Page 32
board supports the Intel High Definition audio subsystem based on the Sigmatel 9220/9223 audio codec. The audio subsystem supports the Audio software and drivers are available from Intel's World Wide Web site. For information about Refer to Obtaining audio software and drivers Section 1.3, page - Intel D945GBO | Product Specification - Page 33
Green] Figure 9. Front/Back Panel Audio Connectors Figure 10 is a block diagram of the 8-channel (7.1) audio subsystem. OM17816 82801GH I/O Controller Hub (ICH7DH) Intel High Definition Audio Link Sigmatel 9220/9223 Audio Codec Line Out Mic In Line In/Side Surround L-R/Retasking Jack Line Out - Intel D945GBO | Product Specification - Page 34
Wide Web site. For information about Obtaining LAN software and drivers Refer to Section 1.3, page 15 1.11.2 Intel® 82573L Gigabit Ethernet Controller The Intel 82573L Gigabit Ethernet Controller supports the following features: • PCI Express link • 10/100/1000 IEEE 802.3 compliant • Compliant - Intel D945GBO | Product Specification - Page 35
12, page 36 1.12.2 Chassis Intrusion and Detection The board supports a chassis security feature that detects if the chassis cover is removed closed position. 1.12.3 Fan Monitoring Fan monitoring can be implemented using Intel® Desktop Utilities or third-party software. The level of monitoring and - Intel D945GBO | Product Specification - Page 36
Intel Desktop Board D945GBO Technical Product Specification 1.12.4 Thermal Monitoring Figure 12 shows the location of the sensors and fan connectors. 1 E 3 12 A C D 1 4 13 Item A B C D E F B F OM17936 Description - Intel D945GBO | Product Specification - Page 37
PC technology ⎯ Resume on Ring ⎯ Wake from USB ⎯ Wake from PS/2 devices ⎯ Power Management Event signal (PME#) wake-up support ⎯ Intel Quick Resume Technology Drivers (Intel QRTD) 1.13.1 ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of - Intel D945GBO | Product Specification - Page 38
Intel Desktop into a low-power state. Table 7 lists the power states supported by the board along with the associated system power targets. See the when provided by battery or external source. No power to the system. Service can be performed safely. Notes: 1. Total system power is dependent on - Intel D945GBO | Product Specification - Page 39
PC technology • Resume on Ring • Wake from USB • Wake from PS/2 keyboard • PME# signal wake-up support • WAKE# signal wake-up support • Intel Quick Resume Technology Drivers (Intel QRTD) LAN wake capabilities and Instantly Available PC technology require power from the +5 V standby line. 39 - Intel D945GBO | Product Specification - Page 40
Intel Desktop Board D945GBO Technical Product Specification Resume on Ring fan connector is wired to a fan tachometer input of the hardware monitoring and fan control ASIC. • All fan connectors support closed-loop fan control that can adjust the fan speed or switch the fan on or off as needed. • - Intel D945GBO | Product Specification - Page 41
of Instantly Available PC technology requires operating system support and PCI 2.3 compliant add-in cards, PCI Express add-in cards, and drivers. 1.13.2.5 Intel® Quick Resume Technology Drivers (Intel® QRTD) The Intel Quick Resume Technology Drivers (Intel QRTD) manage the on and off functions for - Intel D945GBO | Product Specification - Page 42
Do not open the computer chassis when it is in the Intel QRTD off state. Opening the chassis in this state can cause ACPI S1 or S3 states. NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB. 1.13.2.8 Wake from PS/2 Devices PS/2 device activity wakes the computer from - Intel D945GBO | Product Specification - Page 43
. 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.com/design/motherbd/bo/ 43 - Intel D945GBO | Product Specification - Page 44
Intel Desktop Board D945GBO Technical Product Specification 44 - Intel D945GBO | Product Specification - Page 45
2 Technical Reference What This Chapter Contains 2.1 Memory Resources ...45 2.2 DMA Channels ...47 2.3 Fixed I/O Map...48 2.4 PCI Configuration Space Map 49 2.5 Interrupts ...50 2.6 PCI Conventional Interrupt Routing Map 51 2.7 Connectors...52 2.8 Jumper Block ...62 2.9 Mechanical Considerations - Intel D945GBO | Product Specification - Page 46
Intel Desktop Board D945GBO Technical Product Specification The amount of installed memory that can be used will vary based on add-in cards and BIOS settings. - Intel D945GBO | Product Specification - Page 47
Technical Reference 2.1.2 Memory Map Table 9 lists the system memory map. Table 9. System Memory Map Address Range (decimal) 1024 K - 4194304 K 960 K - 1024 K 896 K - 960 K 800 K - 896 K Address Range (hex) 100000 - FFFFFFFF F0000 - FFFFF E0000 - EFFFF C8000 - DFFFF 640 K - 800 K 639 K - 640 K - Intel D945GBO | Product Specification - Page 48
Intel Desktop Board D945GBO Technical Product Specification 2.3 Fixed I/O Map Table 11. I/O Map Address (hex) Size Description 0000 - 00FF 0170 - 0177 01F0 - 01F7 256 bytes 8 bytes 8 bytes - Intel D945GBO | Product Specification - Page 49
03 00 01 02 03 07 00 00 01 02 03 00 00 00 00 00 Description Memory controller of Intel 82945G component PCI Express x16 graphics port (Note 1) Integrated graphics controller Intel High Definition Audio Controller PCI Express port 1 PCI Express port 2 PCI Express port 3 PCI Express port 4 USB UHCI - Intel D945GBO | Product Specification - Page 50
Intel Desktop Board D945GBO Technical Product Specification 2.5 Interrupts The interrupts can be routed through either the Programmable Interrupt Controller (PIC) or the Advanced Programmable Interrupt Controller (APIC) portion of the ICH7DH component. The PIC is supported in Windows 98 SE and - Intel D945GBO | Product Specification - Page 51
Technical Reference 2.6 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 - Intel D945GBO | Product Specification - Page 52
Intel Desktop Board D945GBO Technical Product Specification 2.7 Connectors CAUTION Only the following connectors have overcurrent protection: back panel USB, front panel USB, and PS/2. The other - Intel D945GBO | Product Specification - Page 53
Technical Reference Table 15 lists the back panel connectors identified in Figure 15. 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. Table 15. Back - Intel D945GBO | Product Specification - Page 54
Intel Desktop Board D945GBO Technical Product Specification 2.7.2 Component-side Connectors Figure 16 shows the locations of the component-side connectors. AB FH CD E G I J KL M N O 91 10 2 - Intel D945GBO | Product Specification - Page 55
Table 16 lists the component-side connectors identified in Figure 16. Table 16. Component-side Connectors Shown in Figure 16 Item/callout from Figure 16 Description A Rear chassis fan connector B Front panel audio connector C Parallel ATA IDE connector D Chassis intrusion connector E - Intel D945GBO | Product Specification - Page 56
Intel Desktop Board D945GBO Technical Product Specification Table 17. 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 [ - Intel D945GBO | Product Specification - Page 57
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. When using a power supply with - Intel D945GBO | Product Specification - Page 58
pin A40. ⎯ The SMBus data line is connected to pin A41. NOTE The PCI Express x16 connector is configured to support only a PCI Express x1 link when the Intel GMA950 graphics controller is enabled. 2.7.2.3 Auxiliary Front Panel Power/Sleep LED Connector Pins 1 and 3 of this connector duplicate the - Intel D945GBO | Product Specification - Page 59
Technical Reference 2.7.2.4 Front Panel Connector This section describes the functions of the front panel connector. Table 25 lists the signal names of the front panel connector. Figure 17 is a connection diagram for the front panel connector. Table 25. Front Panel Connector Pin Signal In/Out - Intel D945GBO | Product Specification - Page 60
Intel Desktop Board D945GBO Technical Product Specification 2.7.2.4.2 Reset Switch Connector [Purple] Pins 5 and 7 [Purple] can be connected to a momentary single pole, single throw (SPST) type switch - Intel D945GBO | Product Specification - Page 61
Technical Reference 2.7.2.5 Front Panel USB Connectors Figure 18 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 - Intel D945GBO | Product Specification - Page 62
Intel Desktop Board D945GBO Technical Product Specification 2.8 Jumper Block CAUTION Do not move the jumper with the power on. Always turn off the power and unplug - Intel D945GBO | Product Specification - Page 63
Technical Reference 2.9 Mechanical Considerations 2.9.1 Form Factor The board is designed to fit into a BTX-form-factor chassis. Figure 21 illustrates the mechanical form factor of the board. Dimensions are given in inches [millimeters]. The outer dimensions are 10.40 inches by 10.50 inches [264. - Intel D945GBO | Product Specification - Page 64
in the BTX specification. NOTE The I/O shield drawings in this document are for reference only. I/O shields compliant with the BTX specification are available from Intel. 172.93 REF [6.808] 9.65 [0.380] Ø 1.00 [0.039] 0.00 [0.00] 9.18 [0.36] 9.40 [0.370] 13.00 TYP [0.512] 169.98 + 0.12 - 0.13 - Intel D945GBO | Product Specification - Page 65
Ø 1.00 [0.039] 0.00 [0.00] 9.18 [0.36] 9.40 [0.370] 13.00 TYP [0.512] 172.93 REF [6.808] 169.98 + 0.12 - 0.13 [6.692 + - 0.004 0.005 ] Technical Reference 9.18 [0.361] 11.55 [0.455] 0.00 [0.00] 5.84 [0.23] 17.19 [0.677] 52.70 [2.075] 90.34 [3.557] 110.58 [4.354] 140.39 [5.53] Pictorial - Intel D945GBO | Product Specification - Page 66
Intel Desktop Board D945GBO Technical Product Specification 2.10 Electrical Considerations 2.10.1 DC Loading Table 29 lists the DC loading characteristics of the boards. This data is - Intel D945GBO | Product Specification - Page 67
V standby current. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options. System integrators should refer to the power usage values listed in Table 29 when selecting a power supply for use with the - Intel D945GBO | Product Specification - Page 68
responsibility for determining the adequacy of any thermal or system design remains solely with the reader. Intel makes no warranties or representations that merely following the instructions presented in this document will result in a system with adequate thermal performance. CAUTION Ensure that - Intel D945GBO | Product Specification - Page 69
AB C Technical Reference Item A B C D E E D OM17940 Description Intel 82945G GMCH Intel 82801GH ICH7DH 1.5 V core and front side bus voltage regulator areas Processor Processor voltage regulator area Figure 24. Localized High Temperature Zones 69 - Intel D945GBO | Product Specification - Page 70
ICH7DH 99 ºC (under bias) 110 ºC (under bias, without heatsink) 99 ºC (under bias, with heatsink) For information about Intel Pentium 4 processor datasheets and specification updates Refer to Section 1.3, page 15 2.12 Reliability The Mean Time Between Failures (MTBF) prediction is calculated - Intel D945GBO | Product Specification - Page 71
Technical Reference 2.13 Environmental Table 32 lists the environmental specifications for the board. Table 32. Environmental Specifications Parameter Temperature Non-Operating Operating Shock Unpackaged Packaged Vibration Unpackaged Packaged Specification -40 °C to +70 °C 0 °C to +55 °C 50 g - Intel D945GBO | Product Specification - Page 72
- Safety - Part 1: General Requirements (International) 2.14.2 European Union Declaration of Conformity Statement We, Intel Corporation, declare under our sole responsibility that the product Intel® Desktop Board D945GBO is in conformity with all applicable essential requirements necessary for CE - Intel D945GBO | Product Specification - Page 73
Technical Reference Čeština Tento výrobek odpovídá požadavkům evropských směrnic 89/336/EEC a 73/23/EEC. Dansk Dette produkt er i overensstemmelse med det europæiske direktiv 89/336/EEC & 73/23/EEC. Dutch Dit product is in navolging van de bepalingen van Europees Directief 89/336/EEC & 73/23/EEC. - Intel D945GBO | Product Specification - Page 74
the scope of covered products, available locations, shipping instructions, terms and conditions, etc. Intel Product Recycling Program http://www.intel.com/intel/other/ehs/product_ecology/Recycling_Program.htm Deutsch Als Teil von Intels Engagement für den Umweltschutz hat das Unternehmen das - Intel D945GBO | Product Specification - Page 75
savoir plus sur ce programme, à savoir les produits concernés, les adresses disponibles, les instructions d'expédition, les conditions générales, etc. http://www.intel.com/intel/ other/ehs/product_ecology/Recycling_Program.htm Malay Sebagai sebahagian daripada komitmennya terhadap tanggungjawab - Intel D945GBO | Product Specification - Page 76
programın ürün kapsamı, ürün iade merkezleri, nakliye talimatları, kayıtlar ve şartlar v.s dahil bütün ayrıntılarını ögrenmek için lütfen http://www.intel.com/intel/other/ehs/product_ecology/Recycling_Program.htm Web sayfasına gidin. 2.14.3.3 Lead Free Desktop Board The desktop board is lead free - Intel D945GBO | Product Specification - Page 77
near a radio or television receiver in a domestic environment, it may cause radio interference. Install and use the equipment according to the instruction manual. Korean Class B statement translation: this is household equipment that is certified to comply with EMC requirements. You may use this - Intel D945GBO | Product Specification - Page 78
Voluntary Control Council for Interference) mark. S. Korea MIC (Ministry of Information and Communication) mark. For information about MIC certification, go to http://support.intel.com/support/motherboards/desktop/ Taiwan BSMI (Bureau of Standards, Metrology and Inspections) mark. Includes adjacent - Intel D945GBO | Product Specification - Page 79
Speed 84 3.9 BIOS Security Features 85 3.1 Introduction The boards use an Intel BIOS that is stored in the Serial Peripheral Interface Flash Memory (SPI program, POST, the PCI auto-configuration utility, and Plug and Play support. The BIOS displays a message during POST identifying the type of - Intel D945GBO | Product Specification - Page 80
Intel Desktop Board D945GBO Technical Product Specification Table 37 lists the Setup program, the BIOS automatically sets up the PCI IDE connector with independent I/O channel support. The IDE interface supports hard drives up to ATA-66/100 and recognizes any ATAPI compliant devices, including CD- - Intel D945GBO | Product Specification - Page 81
options by specifying manual configuration in the BIOS support, an SMBIOS service-level application running on a non-Plug and Play operating system can obtain the SMBIOS information. 3.5 Legacy USB Support Legacy USB support enables USB devices to be used even when the operating system's USB drivers - Intel D945GBO | Product Specification - Page 82
Web. • Intel® Flash Memory Update Utility, which requires creation of a boot diskette and manual rebooting of instructions distributed with the upgrade utility before attempting a BIOS update. For information about The Intel World Wide Web site Refer to Section 1.3, page 15 3.6.1 Language Support - Intel D945GBO | Product Specification - Page 83
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. Under the Boot menu in the BIOS Setup program, ATAPI CD-ROM is listed - Intel D945GBO | Product Specification - Page 84
Intel Desktop Board D945GBO Technical Product Specification 3.8 Adjusting Boot Speed These factors It is possible to optimize the boot process to the point where the system boots so quickly that the Intel logo screen (or a custom logo splash screen) will not be seen. Monitors and hard disk drives - Intel D945GBO | Product Specification - Page 85
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 - Intel D945GBO | Product Specification - Page 86
Intel Desktop Board D945GBO Technical Product Specification 86 - Intel D945GBO | Product Specification - Page 87
Refer to Figure 1, page 12 4.2 BIOS Beep Codes Whenever a recoverable error occurs during POST, the BIOS displays an error message describing the problem (see Table 41). Table 41. Beep Codes Type Memory error Thermal warning Pattern Three long beeps Four alternating beeps: High tone, low tone - Intel D945GBO | Product Specification - Page 88
Intel Desktop Board D945GBO Technical Product Specification 4.4 Port 80h POST Codes B0 - BF C0 - CF D0 - DF E0 - FF Category/Subsystem Debug codes: Can be used by any PEIM/driver for debug. Host Processors: 1F is an unrecoverable CPU error. Memory/Chipset: 2F is no memory detected or no useful - Intel D945GBO | Product Specification - Page 89
Error Messages and Beep Codes Table 44. 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 - Intel D945GBO | Product Specification - Page 90
Intel Desktop Board D945GBO Technical Product keyboard Detecting presence of keyboard Enabling the keyboard Clearing keyboard input buffer Instructing keyboard controller to run Self Test (PS2 only) Mouse (PS2 Entered DXE phase Started dispatching drivers Started connecting drivers continued 90 - Intel D945GBO | Product Specification - Page 91
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 service ExitBootServices ( ) has been called F9 EFI runtime service SetVirtualAddressMap ( ) has been called FA EFI runtime service - Intel D945GBO | Product Specification - Page 92
Intel Desktop Board D945GBO Technical Product Specification Table 45. Typical Port 80h POST Sequence POST Code 21 22 23 25 28 34 E4 12 13 50
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January 2006
Order Number:
D36107-001US
The Intel
®
Desktop Board D945GBO 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 D945GBO Specification Update.
Intel
®
Desktop Board
D945GBO
Technical Product Specification