Product Specification
Page 1
Current characterized errata are documented in the Intel Desktop Board D845BG/D845PT Specification Update. Intel® Desktop Board D845BG/D845PT Technical Product Specification November 2001 Order Number: A75852-001 The Intel® Desktop Boards D845BG/D845PT 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 D845BG/D845PT Specification Update. Intel® Desktop Board D845BG/D845PT Technical Product Specification November 2001 Order Number: A75852-001 The Intel® Desktop Boards D845BG/D845PT may contain design defects or errors known as errata that may cause the product to deviate from published specifications.
Product Specification
Page 2
... or death may contain design defects or errors known as the property of the Intel® Desktop Board D845BG/D845PT Technical Product Specification. Date November 2001 This product specification applies to obtain the latest specifications before being incorporated into a revision of Intel Corporation or its subsidiaries in the United States and other intellectual property rights. Revision...
... or death may contain design defects or errors known as the property of the Intel® Desktop Board D845BG/D845PT Technical Product Specification. Date November 2001 This product specification applies to obtain the latest specifications before being incorporated into a revision of Intel Corporation or its subsidiaries in the United States and other intellectual property rights. Revision...
Product Specification
Page 3
... Not all of these Intel® Desktop Boards: D845BG and D845PT. It is intended to provide detailed, technical information about the conventions used in this type. It describes the standard product and available manufacturing options. Preface This Technical Product Specification (TPS) specifies the...of the hardware used on the D845BG and D845PT boards A map of the resources of the boards The features supported by the BIOS Setup program The contents of the BIOS Setup program's menus and submenus A description of this specification. WARNING Warnings indicate conditions, which if not ...
... Not all of these Intel® Desktop Boards: D845BG and D845PT. It is intended to provide detailed, technical information about the conventions used in this type. It describes the standard product and available manufacturing options. Preface This Technical Product Specification (TPS) specifies the...of the hardware used on the D845BG and D845PT boards A map of the resources of the boards The features supported by the BIOS Setup program The contents of the BIOS Setup program's menus and submenus A description of this specification. WARNING Warnings indicate conditions, which if not ...
Product Specification
Page 4
Intel Desktop Board D845BG/D845PT Technical Product Specification Other Common Notation # (NxnX) GB GB/sec KB Kbit kbits/sec MB MB/sec Mbit Mbit/sec xxh x.x V † Used after a signal name to identify ... per second An address or data value ending with a lowercase h indicates a hexadecimal value. iv Voltages are the property of its location on the D845BG and D845PT boards, and X is used in the 5J area. Volts. For example, J5J1 is the first connector in the description of a component, N indicates component type, xn...
Intel Desktop Board D845BG/D845PT Technical Product Specification Other Common Notation # (NxnX) GB GB/sec KB Kbit kbits/sec MB MB/sec Mbit Mbit/sec xxh x.x V † Used after a signal name to identify ... per second An address or data value ending with a lowercase h indicates a hexadecimal value. iv Voltages are the property of its location on the D845BG and D845PT boards, and X is used in the 5J area. Volts. For example, J5J1 is the first connector in the description of a component, N indicates component type, xn...
Product Specification
Page 5
...1.2.2 Manufacturing Options 13 1.2.3 Board Layouts 14 1.2.4 Block Diagram 16 1.3 Online Support ...18 1.4 Operating System Support 18 1.5 Design Specifications 19 1.6 Processor ...22 1.7 System Memory ...23 1.8 Intel® 845 Chipset...25 1.8.1 AGP ...26 1.8.2 USB...27 1.8.3 IDE Support 29 1.8.4 Real-Time Clock, CMOS SRAM, and...10 Audio Subsystem...33 1.10.1 Audio Connectors 34 1.10.2 Audio Subsystem Software 34 1.11 LAN Subsystem (Optional 35 1.11.1 Intel® 82562ET Platform LAN Connect Device 35 1.11.2 RJ-45 LAN Connector with Integrated LEDs 35 1.11.3 LAN Subsystem Software 36...
...1.2.2 Manufacturing Options 13 1.2.3 Board Layouts 14 1.2.4 Block Diagram 16 1.3 Online Support ...18 1.4 Operating System Support 18 1.5 Design Specifications 19 1.6 Processor ...22 1.7 System Memory ...23 1.8 Intel® 845 Chipset...25 1.8.1 AGP ...26 1.8.2 USB...27 1.8.3 IDE Support 29 1.8.4 Real-Time Clock, CMOS SRAM, and...10 Audio Subsystem...33 1.10.1 Audio Connectors 34 1.10.2 Audio Subsystem Software 34 1.11 LAN Subsystem (Optional 35 1.11.1 Intel® 82562ET Platform LAN Connect Device 35 1.11.2 RJ-45 LAN Connector with Integrated LEDs 35 1.11.3 LAN Subsystem Software 36...
Product Specification
Page 6
Intel Desktop Board D845BG/D845PT Technical Product Specification 2 Technical Reference 2.1 Introduction...47 2.2 Memory Map ...47 2.3 I/O Map ...48 2.4 DMA Channels ...50 2.5 PCI Configuration Space Map 50 2.6 Interrupts ...51 2.7 PCI Interrupt Routing Map ...75 2.9.1 Front Panel Audio Connector/Jumper Block 75 2.9.2 BIOS Setup Configuration Jumper Block 76 2.10 Mechanical Considerations 77 2.10.1 D845BG Form Factor 77 2.10.2 D845PT Form Factor 78 2.10.3 I/O Shield ...79 2.11 Electrical Considerations 82 2.11.1 Power Consumption 82 2.11.2 Add-in Board Considerations 82 2.11.3 Standby ...
Intel Desktop Board D845BG/D845PT Technical Product Specification 2 Technical Reference 2.1 Introduction...47 2.2 Memory Map ...47 2.3 I/O Map ...48 2.4 DMA Channels ...50 2.5 PCI Configuration Space Map 50 2.6 Interrupts ...51 2.7 PCI Interrupt Routing Map ...75 2.9.1 Front Panel Audio Connector/Jumper Block 75 2.9.2 BIOS Setup Configuration Jumper Block 76 2.10 Mechanical Considerations 77 2.10.1 D845BG Form Factor 77 2.10.2 D845PT Form Factor 78 2.10.3 I/O Shield ...79 2.11 Electrical Considerations 82 2.11.1 Power Consumption 82 2.11.2 Add-in Board Considerations 82 2.11.3 Standby ...
Product Specification
Page 8
... Connector 62 30. Power and Hardware Control Connectors 61 14. D845BG Board Dimensions 77 19. Summary of Pressing the Power Switch 39 9. Specifications ...19 5. Effects of Board Differences 11 2. PCI Interrupt Routing Map 53 18. Serial Port A Connector 57 22. Mic In Connector ...Connectors...56 20. Audio Line Out Connector 57 25. Back Panel Connectors 55 12. Parallel Port Connector 56 21. Intel Desktop Board D845BG/D845PT Technical Product Specification 10. LAN Connector LED States 35 8. DMA Channels ...50 15. Main Power Connector 63 viii Location of the Standby...
... Connector 62 30. Power and Hardware Control Connectors 61 14. D845BG Board Dimensions 77 19. Summary of Pressing the Power Switch 39 9. Specifications ...19 5. Effects of Board Differences 11 2. PCI Interrupt Routing Map 53 18. Serial Port A Connector 57 22. Mic In Connector ...Connectors...56 20. Audio Line Out Connector 57 25. Back Panel Connectors 55 12. Parallel Port Connector 56 21. Intel Desktop Board D845BG/D845PT Technical Product Specification 10. LAN Connector LED States 35 8. DMA Channels ...50 15. Main Power Connector 63 viii Location of the Standby...
Product Specification
Page 9
... 106 66. Hard Disk Drives Submenu 119 77. CNR Connector (Optional 66 35. Diskette Drive Connector 69 38. Standby Current Requirements 83 51. D845BG/D845PT Board Environmental Specifications 87 54. PCI Configuration Submenu 104 64. IDE Configuration Submenu 108 67. Event Log Configuration Submenu 112 70. Power Menu ...115 73. Boot Device...
... 106 66. Hard Disk Drives Submenu 119 77. CNR Connector (Optional 66 35. Diskette Drive Connector 69 38. Standby Current Requirements 83 51. D845BG/D845PT Board Environmental Specifications 87 54. PCI Configuration Submenu 104 64. IDE Configuration Submenu 108 67. Event Log Configuration Submenu 112 70. Power Menu ...115 73. Boot Device...
Product Specification
Page 10
Boot Block Recovery Code Checkpoints 123 83. Lower Nibble High Byte Functions 128 87. Intel Desktop Board D845BG/D845PT Technical Product Specification 80. Upper Nibble High Byte Functions 127 86. Beep Codes...129 x Uncompressed INIT Code Checkpoints 123 82. Bus Initialization Checkpoints 127 85. Runtime Code Uncompressed in F000 Shadow RAM 124 84. BIOS Error Messages 121 81.
Boot Block Recovery Code Checkpoints 123 83. Lower Nibble High Byte Functions 128 87. Intel Desktop Board D845BG/D845PT Technical Product Specification 80. Upper Nibble High Byte Functions 127 86. Beep Codes...129 x Uncompressed INIT Code Checkpoints 123 82. Bus Initialization Checkpoints 127 85. Runtime Code Uncompressed in F000 Shadow RAM 124 84. BIOS Error Messages 121 81.
Product Specification
Page 11
...; NOTE Most of the items listed in this document show only the D845PT board. 1 Product Description What This Chapter Contains 1.1 Board Differences...11 1.2 Overview ...12 1.3 Online Support ...18 1.4 Operating System Support 18 1.5 Design Specifications 19 1.6 Processor ...22 1.7 System Memory ...23 1.8 Intel® 845 Chipset...25 1.9 I/O Controller ...30 1.10 Audio Subsystem...33 1.11 LAN...
...; NOTE Most of the items listed in this document show only the D845PT board. 1 Product Description What This Chapter Contains 1.1 Board Differences...11 1.2 Overview ...12 1.3 Online Support ...18 1.4 Operating System Support 18 1.5 Design Specifications 19 1.6 Processor ...22 1.7 System Memory ...23 1.8 Intel® 845 Chipset...25 1.9 I/O Controller ...30 1.10 Audio Subsystem...33 1.11 LAN...
Product Specification
Page 12
...fan activity continued 12 Feature Summary Form Factor Processor Memory D845BG: ATX (12.00 inches by 8.20 inches) D845PT: microATX (9.60 inches by 8.20 inches) • Support for an Intel® Pentium® 4 processor in card connectors (SMBus routed to PCI bus connector 1) • Voltage ...) • Support for a maximum onboard capacity of range thermal values • Two fan sense inputs used to the following Intel web sites. Table 2. Intel Desktop Board D845BG/D845PT Technical Product Specification 1.2 Overview 1.2.1 Feature Summary Table 2 summarizes the D845BG and...
...fan activity continued 12 Feature Summary Form Factor Processor Memory D845BG: ATX (12.00 inches by 8.20 inches) D845PT: microATX (9.60 inches by 8.20 inches) • Support for an Intel® Pentium® 4 processor in card connectors (SMBus routed to PCI bus connector 1) • Voltage ...) • Support for a maximum onboard capacity of range thermal values • Two fan sense inputs used to the following Intel web sites. Table 2. Intel Desktop Board D845BG/D845PT Technical Product Specification 1.2 Overview 1.2.1 Feature Summary Table 2 summarizes the D845BG and...
Product Specification
Page 13
...PC Technology • Support for PCI Local Bus Specification Revision 2.2 • Suspend to RAM support • Wake on the D845BG board. Feature Summary (continued) BIOS • Intel/AMI BIOS (resident in all marketing channels. Please contact your Intel representative to you. CNR LAN USB 2.0 Manufacturing ...3. For information about The board's compliance level with PCI bus connector 3 on the D845PT board) Intel® 82562ET 10/100 Mbit/sec Platform LAN Connect (PLC) device Support for the D845BG and D845PT boards Refer to Section 1.3, page 18 ✏ NOTE The LAN and the CNR ...
...PC Technology • Support for PCI Local Bus Specification Revision 2.2 • Suspend to RAM support • Wake on the D845BG board. Feature Summary (continued) BIOS • Intel/AMI BIOS (resident in all marketing channels. Please contact your Intel representative to you. CNR LAN USB 2.0 Manufacturing ...3. For information about The board's compliance level with PCI bus connector 3 on the D845PT board) Intel® 82562ET 10/100 Mbit/sec Platform LAN Connect (PLC) device Support for the D845BG and D845PT boards Refer to Section 1.3, page 18 ✏ NOTE The LAN and the CNR ...
Product Specification
Page 14
D845BG Board Components 14 Intel Desktop Board D845BG/D845PT Technical Product Specification 1.2.3 Board Layouts Figure 1 shows the location of the major components on the D845BG board. A BC D E T F S G R Q H P O I N M L K J OM12997 A Audio codec B Intel 82562ET PLC device (optional) C AGP connector D Back panel connectors E +12 V power connector (ATX12V) F Intel 82845 Memory Controller Hub (MCH) G µPGA478 processor socket H DIMM sockets...
D845BG Board Components 14 Intel Desktop Board D845BG/D845PT Technical Product Specification 1.2.3 Board Layouts Figure 1 shows the location of the major components on the D845BG board. A BC D E T F S G R Q H P O I N M L K J OM12997 A Audio codec B Intel 82562ET PLC device (optional) C AGP connector D Back panel connectors E +12 V power connector (ATX12V) F Intel 82845 Memory Controller Hub (MCH) G µPGA478 processor socket H DIMM sockets...
Product Specification
Page 16
... AC Link CNR Connector (optional) AD1885 Audio Codec Line In Line Out Mic In Auxiliary Line In CD-ROM USB Back Panel USB Ports (2) Figure 3. Intel Desktop Board D845BG/D845PT Technical Product Specification 1.2.4 Block Diagram Figure 3 is a block diagram of the major functional areas of the standard D845BG and...
... AC Link CNR Connector (optional) AD1885 Audio Codec Line In Line Out Mic In Auxiliary Line In CD-ROM USB Back Panel USB Ports (2) Figure 3. Intel Desktop Board D845BG/D845PT Technical Product Specification 1.2.4 Block Diagram Figure 3 is a block diagram of the major functional areas of the standard D845BG and...
Product Specification
Page 18
... drivers and is not currently supported by any other drivers. ✏ NOTE The USB 2.0 option requires an operating system that officially supports USB 2.0. Intel Desktop Board D845BG/D845PT Technical Product Specification 1.3 Online Support To find information about Supported drivers Refer to Section 1.3 ✏ NOTE Third party vendors may offer other operating system. 18...
... drivers and is not currently supported by any other drivers. ✏ NOTE The USB 2.0 option requires an operating system that officially supports USB 2.0. Intel Desktop Board D845BG/D845PT Technical Product Specification 1.3 Online Support To find information about Supported drivers Refer to Section 1.3 ✏ NOTE Third party vendors may offer other operating system. 18...
Product Specification
Page 19
.../ATX12V Power Supply Design Guide Boot Integrity Services CNR Communication and Network Riser (CNR) Specification Version, Revision Date, and Ownership Revision 2.2, September 2000, Intel Corporation. Product Description 1.5 Design Specifications Table 4 lists the specifications applicable to the D845BG and D845PT boards. Revision 2.0, May 4, 1998, Intel Corporation. The information is available from... Table 4. Version 1.0 for WfM 2.0 August 1999...
.../ATX12V Power Supply Design Guide Boot Integrity Services CNR Communication and Network Riser (CNR) Specification Version, Revision Date, and Ownership Revision 2.2, September 2000, Intel Corporation. Product Description 1.5 Design Specifications Table 4 lists the specifications applicable to the D845BG and D845PT boards. Revision 2.0, May 4, 1998, Intel Corporation. The information is available from... Table 4. Version 1.0 for WfM 2.0 August 1999...
Product Specification
Page 20
... Association. Version 1.0, January 25, 1995, Phoenix Technologies Limited and International Business Machines Corporation. Version 1.0, October 2000, Intel Corporation. Revision 2.2, December 18, 1998, PCI Special Interest Group. Intel Desktop Board D845BG/D845PT Technical Product Specification Table 4. Revision 0.9, September 27, 2001, Intel Corporation. Release 1.0a, October 10, 1996, Compaq Computer Corp., Microsoft Corporation, and National Semiconductor Corp...
... Association. Version 1.0, January 25, 1995, Phoenix Technologies Limited and International Business Machines Corporation. Version 1.0, October 2000, Intel Corporation. Revision 2.2, December 18, 1998, PCI Special Interest Group. Intel Desktop Board D845BG/D845PT Technical Product Specification Table 4. Revision 0.9, September 27, 2001, Intel Corporation. Release 1.0a, October 10, 1996, Compaq Computer Corp., Microsoft Corporation, and National Semiconductor Corp...
Product Specification
Page 21
... International Incorporated, Compaq Computer Corporation, Dell Computer Corporation, Hewlett-Packard Company, Intel Corporation, International Business Machines Corporation, Phoenix Technologies Limited, and SystemSoft Corporation. Specifications (continued) Reference Name Plug and Play PXE SFX SMBIOS UHCI USB WfM Specification Title Plug and Play BIOS Specification Preboot Execution Environment SFX/SFX12V Power Supply Design Guide System Management...
... International Incorporated, Compaq Computer Corporation, Dell Computer Corporation, Hewlett-Packard Company, Intel Corporation, International Business Machines Corporation, Phoenix Technologies Limited, and SystemSoft Corporation. Specifications (continued) Reference Name Plug and Play PXE SFX SMBIOS UHCI USB WfM Specification Title Plug and Play BIOS Specification Preboot Execution Environment SFX/SFX12V Power Supply Design Guide System Management...
Product Specification
Page 22
...-pin and 4-pin leads of supported processors for these boards. The board will not boot. Intel Desktop Board D845BG/D845PT Technical Product Specification 1.6 Processor CAUTION Use only the processors listed below. See the Intel® Desktop Board D845BG/D845PT Specification Update for the most up to -date list of ATX12V and SFX12V power supplies to Section...
...-pin and 4-pin leads of supported processors for these boards. The board will not boot. Intel Desktop Board D845BG/D845PT Technical Product Specification 1.6 Processor CAUTION Use only the processors listed below. See the Intel® Desktop Board D845BG/D845PT Specification Update for the most up to -date list of ATX12V and SFX12V power supplies to Section...
Product Specification
Page 23
... video card before installing or upgrading memory to avoid interference with the memory retention mechanism. ✏ NOTE The D845BG/D845PT boards have two DIMM sockets and support the following Intel web sites for the latest lists of up to RAM • Non-ECC and ECC DIMMs ✏ NOTE To...reliability may be impacted or the DIMMs may not function under the determined frequency. ✏ NOTE For ECC functionality, all applicable DDR SDRAM memory specifications, the board should be ECC. If non-SPD memory is installed, the BIOS will not function. If both have been designed to support ...
... video card before installing or upgrading memory to avoid interference with the memory retention mechanism. ✏ NOTE The D845BG/D845PT boards have two DIMM sockets and support the following Intel web sites for the latest lists of up to RAM • Non-ECC and ECC DIMMs ✏ NOTE To...reliability may be impacted or the DIMMs may not function under the determined frequency. ✏ NOTE For ECC functionality, all applicable DDR SDRAM memory specifications, the board should be ECC. If non-SPD memory is installed, the BIOS will not function. If both have been designed to support ...