Product Specification
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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 52 2.8 Connectors ...54 2.8.1 Back Panel Connectors 55 2.8.2 Internal I/O Connectors 58 2.8.3 External I/O Connectors 71 2.9 Jumper Blocks...75 2.9.1 Front Panel Audio Connector/Jumper Block 75 2.9.2 BIOS Setup Configuration Jumper Block 76...
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 52 2.8 Connectors ...54 2.8.1 Back Panel Connectors 55 2.8.2 Internal I/O Connectors 58 2.8.3 External I/O Connectors 71 2.9 Jumper Blocks...75 2.9.1 Front Panel Audio Connector/Jumper Block 75 2.9.2 BIOS Setup Configuration Jumper Block 76...
Product Specification
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...41 11. System Memory Map 47 13. Serial Port A Connector 57 22. Rear Chassis Fan Connector 62 30. Main Power Connector 63 viii Back Panel Connectors 55 12. Fan Connector Function/Operation 43 12. Mic In Connector ...57 26. Location of the Jumper Blocks 75 18. DMA... not USB 2.0) ..........79 21. Audio Line In Connector 57 24. Localized High Temperature Zones 86 Tables 1. Summary of Pressing the Power Switch 39 9. PCI Configuration Space Map 50 16. Intel Desktop Board D845BG/D845PT Technical Product Specification 10. Supported Memory Configurations 24 7....
...41 11. System Memory Map 47 13. Serial Port A Connector 57 22. Rear Chassis Fan Connector 62 30. Main Power Connector 63 viii Back Panel Connectors 55 12. Fan Connector Function/Operation 43 12. Mic In Connector ...57 26. Location of the Jumper Blocks 75 18. DMA... not USB 2.0) ..........79 21. Audio Line In Connector 57 24. Localized High Temperature Zones 86 Tables 1. Summary of Pressing the Power Switch 39 9. PCI Configuration Space Map 50 16. Intel Desktop Board D845BG/D845PT Technical Product Specification 10. Supported Memory Configurations 24 7....
Product Specification
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...114 72. Boot Device Priority Submenu 118 76. PCI Bus Connectors 67 36. Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector 72 44. Front Panel Connector 73 45. Front Panel Audio Connector/Jumper Block 76 48. D845BG/D845PT Board Environmental Specifications 87 54. EMC Regulations...88 56. Supervisor... Power Menu ...115 73. Removable Devices Submenu 119 78. ATAPI CD-ROM Drives Submenu 120 79. PCI IDE Connectors 70 39. Front Panel Audio Connector 72 41. States for Components 86 53. Thermal Considerations for a One-Color Power LED 73 46. Maintenance Menu...
...114 72. Boot Device Priority Submenu 118 76. PCI Bus Connectors 67 36. Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector 72 44. Front Panel Connector 73 45. Front Panel Audio Connector/Jumper Block 76 48. D845BG/D845PT Board Environmental Specifications 87 54. EMC Regulations...88 56. Supervisor... Power Menu ...115 73. Removable Devices Submenu 119 78. ATAPI CD-ROM Drives Submenu 120 79. PCI IDE Connectors 70 39. Front Panel Audio Connector 72 41. States for Components 86 53. Thermal Considerations for a One-Color Power LED 73 46. Maintenance Menu...
Product Specification
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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 I I/O controller J Power connector K IDE connectors L Diskette drive connector M Intel 82802AB 4 Mbit...
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 I I/O controller J Power connector K IDE connectors L Diskette drive connector M Intel 82802AB 4 Mbit...
Product Specification
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D845PT Board Components 15 A BC D E S F R G Q P H O I N M L K J OM12986 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 I I/O controller J Power connector K IDE connectors L Diskette drive connector M Intel 82802AB 4 Mbit Firmware Hub (FWH) N Speaker O Front panel connector P Intel 82801BA I/O Controller Hub (ICH2) Q Battery R PCI bus add-in card connectors S CNR connector (optional...
D845PT Board Components 15 A BC D E S F R G Q P H O I N M L K J OM12986 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 I I/O controller J Power connector K IDE connectors L Diskette drive connector M Intel 82802AB 4 Mbit Firmware Hub (FWH) N Speaker O Front panel connector P Intel 82801BA I/O Controller Hub (ICH2) Q Battery R PCI bus add-in card connectors S CNR connector (optional...
Product Specification
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..., page 56 Figure 16, page 71 Table 42, page 72 Section 1.5, page 19 1.8.2.1 USB 1.1 Support The D845BG/D845PT boards support up to seven USB ports, as shown in card USB USB ports (2) Back panel USB connectors adjacent to the cable. Use shielded cable that have an unshielded cable attached to a USB port may...
..., page 56 Figure 16, page 71 Table 42, page 72 Section 1.5, page 19 1.8.2.1 USB 1.1 Support The D845BG/D845PT boards support up to seven USB ports, as shown in card USB USB ports (2) Back panel USB connectors adjacent to the cable. Use shielded cable that have an unshielded cable attached to a USB port may...
Product Specification
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...routing is not currently supported by any of the ports. USB 2.0 support has been tested with stacked back panel connectors, adjacent to the audio connectors • Two ports routed to any other operating system. All D845BG boards with the USB 2.0 option fully... ports implemented with Windows 2000 and Windows XP drivers and is implemented as shown in card Front panel USB connectors Figure 7. USB 2.0 Port Configuration (Optional) OM12337 28 Intel Desktop Board D845BG/D845PT Technical Product Specification 1.8.2.2 USB 2.0 Support (Optional) ✏ NOTE The USB 2.0 option is ...
...routing is not currently supported by any of the ports. USB 2.0 support has been tested with stacked back panel connectors, adjacent to the audio connectors • Two ports routed to any other operating system. All D845BG boards with the USB 2.0 option fully... ports implemented with Windows 2000 and Windows XP drivers and is implemented as shown in card Front panel USB connectors Figure 7. USB 2.0 Port Configuration (Optional) OM12337 28 Intel Desktop Board D845BG/D845PT Technical Product Specification 1.8.2.2 USB 2.0 Support (Optional) ✏ NOTE The USB 2.0 option is ...
Product Specification
Page 55
... line out L Audio line in compliance with PC 99 recommendations. The back panel connectors are not populated if the USB 2.0 option is supported. ✏ NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only. Back Panel Connectors ✏ NOTE The USB ports adjacent to this output. 55 Poor audio... Table 22 Table 19 Table 19 Table 25 Table 24 Table 23 Figure 11. The figure legend below lists the colors used. Technical Reference 2.8.1 Back Panel Connectors Figure 11 shows the location of the back...
... line out L Audio line in compliance with PC 99 recommendations. The back panel connectors are not populated if the USB 2.0 option is supported. ✏ NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only. Back Panel Connectors ✏ NOTE The USB ports adjacent to this output. 55 Poor audio... Table 22 Table 19 Table 19 Table 25 Table 24 Table 23 Figure 11. The figure legend below lists the colors used. Technical Reference 2.8.1 Back Panel Connectors Figure 11 shows the location of the back...
Product Specification
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...CTS (Clear to Section 2.9.1 on pins 2 and 4 of the front panel connector. Front Panel Audio Connector Pin Signal Name Pin 1 MIC_IN_FP 2 3 MIC_BIAS 4 5 R_FNTOUT 6 7 Ground 8 9...Panel Power/Sleep/Message-Waiting LED Connector Pins 1 and 3 of this connector duplicate the signals on page 75 for routing audio signals. Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector Pin Signal Name In/Out Description 1 HDR_BLNK_GRN Out Front panel green LED 2 Not connected 3 HDR_BLNK_YEL Out Front panel yellow LED 72 Table 43. Intel Desktop Board D845BG/D845PT...
...CTS (Clear to Section 2.9.1 on pins 2 and 4 of the front panel connector. Front Panel Audio Connector Pin Signal Name Pin 1 MIC_IN_FP 2 3 MIC_BIAS 4 5 R_FNTOUT 6 7 Ground 8 9...Panel Power/Sleep/Message-Waiting LED Connector Pins 1 and 3 of this connector duplicate the signals on page 75 for routing audio signals. Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector Pin Signal Name In/Out Description 1 HDR_BLNK_GRN Out Front panel green LED 2 Not connected 3 HDR_BLNK_YEL Out Front panel yellow LED 72 Table 43. Intel Desktop Board D845BG/D845PT...
Product Specification
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... connected Ground Ground (pin removed) Not connected +5 V Out Power 2.8.3.2.1 Hard Drive Activity LED Connector Pins 1 and 3 can be connected to a hard drive. Technical Reference 2.8.3.2 Front Panel Connector This section describes the functions of the front panel connector. When the switch is closed, the D845BG/D845PT board resets and runs the POST. 2.8.3.2.3 Power/Sleep/Message Waiting LED...
... connected Ground Ground (pin removed) Not connected +5 V Out Power 2.8.3.2.1 Hard Drive Activity LED Connector Pins 1 and 3 can be connected to a hard drive. Technical Reference 2.8.3.2 Front Panel Connector This section describes the functions of the front panel connector. When the switch is closed, the D845BG/D845PT board resets and runs the POST. 2.8.3.2.3 Power/Sleep/Message Waiting LED...
Intel Desktop Board D845PT/D845BG Product Guide
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... Exit Menu ...66 5 Technical Reference Board Connectors ...67 Back Panel Connectors 68 Midboard Connectors 69 Audio Connectors 69 Power and Hardware Connectors 70 Add-In Card and Peripheral Interface Connectors 71 Front Panel Connectors 73 Desktop Board Resources 74 Memory Map ...74 DMA Channels ...74 I /O Shield 24 5. Location of Standby Power Indicator 21 4. D845PT Board Mounting Holes 25 6. D845BG Board...
... Exit Menu ...66 5 Technical Reference Board Connectors ...67 Back Panel Connectors 68 Midboard Connectors 69 Audio Connectors 69 Power and Hardware Connectors 70 Add-In Card and Peripheral Interface Connectors 71 Front Panel Connectors 73 Desktop Board Resources 74 Memory Map ...74 DMA Channels ...74 I /O Shield 24 5. Location of Standby Power Indicator 21 4. D845PT Board Mounting Holes 25 6. D845BG Board...
Intel Desktop Board D845PT/D845BG Product Guide
Page 6
Installing the AGP Card Retention Mechanism 34 15. Back Panel Connectors 68 21. Audio Connectors ...69 22. D845PT Board Add-in Card and Peripheral Interface Connectors 72 25. Processors Supported by the Desktop Board 13 3. Standby Current Requirements 22 5. Advanced Menu... Submenu 52 13. ACPI Submenu ...62 23. Intel Desktop Boards D845PT and D845BG Product Guide 11. AGP Card with Retention Notch 33 14. Removing the AGP Card Retention Mechanism 36 17. Removing the Battery 42 20. Front Panel Connectors 73 Tables 1. Maintenance Menu ...48 9. Extended...
Installing the AGP Card Retention Mechanism 34 15. Back Panel Connectors 68 21. Audio Connectors ...69 22. D845PT Board Add-in Card and Peripheral Interface Connectors 72 25. Processors Supported by the Desktop Board 13 3. Standby Current Requirements 22 5. Advanced Menu... Submenu 52 13. ACPI Submenu ...62 23. Intel Desktop Boards D845PT and D845BG Product Guide 11. AGP Card with Retention Notch 33 14. Removing the AGP Card Retention Mechanism 36 17. Removing the Battery 42 20. Front Panel Connectors 73 Tables 1. Maintenance Menu ...48 9. Extended...
Intel Desktop Board D845PT/D845BG Product Guide
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... audio codec P Diskette drive connector B AGP connector Q Firmware Hub (FWH) C CD-ROM connector (ATAPI) R Intel 82801BA I/O Controller Hub (ICH2) D Auxiliary line-in card connectors N Secondary IDE connector CC Communication and Networking Riser (CNR) (optional) O Primary IDE connector DD Front panel audio connector Figure 1. Desktop Board Features Board Components Figure 1 shows the location of the major components on the D845PT board.
... audio codec P Diskette drive connector B AGP connector Q Firmware Hub (FWH) C CD-ROM connector (ATAPI) R Intel 82801BA I/O Controller Hub (ICH2) D Auxiliary line-in card connectors N Secondary IDE connector CC Communication and Networking Riser (CNR) (optional) O Primary IDE connector DD Front panel audio connector Figure 1. Desktop Board Features Board Components Figure 1 shows the location of the major components on the D845PT board.
Intel Desktop Board D845PT/D845BG Product Guide
Page 12
... connector L Serial port B connector AA Battery M Power connector BB PCI bus add-in connector (ATAPI) S BIOS configuration jumper block E Back panel connectors T SCSI hard drive activity LED connector F 12 V processor core voltage connector U Speaker G Rear chassis fan connector (tachometer input) V Chassis intrusion connector H Intel 82845 Memory Controller Hub (MCH) W Front chassis fan connector I AA Z J Y K X L W V U T SR Q P ON M OM12624 A Analog Devices Inc. Intel Desktop Boards D845PT...
... connector L Serial port B connector AA Battery M Power connector BB PCI bus add-in connector (ATAPI) S BIOS configuration jumper block E Back panel connectors T SCSI hard drive activity LED connector F 12 V processor core voltage connector U Speaker G Rear chassis fan connector (tachometer input) V Chassis intrusion connector H Intel 82845 Memory Controller Hub (MCH) W Front chassis fan connector I AA Z J Y K X L W V U T SR Q P ON M OM12624 A Analog Devices Inc. Intel Desktop Boards D845PT...
Intel Desktop Board D845PT/D845BG Product Guide
Page 16
... interface (UHCI) and takes advantage of standard software drivers written to be compatible with PCI bus connector 6) 16 four ports routed to the back panel, two to the front panel connector, and one to seven USB 1.1 ports via the ICH2 and I/O controller; The interface supports:...connectors: The D845PT board has: • Three PCI bus add-in card connectors (PCI bus connector 3 slot shared with CNR) • One AGP connector • One optional CNR connector (slot shared with PCI bus connector 3) The D845BG board has: • Six PCI bus add-in ports. Intel Desktop Boards D845PT...
... interface (UHCI) and takes advantage of standard software drivers written to be compatible with PCI bus connector 6) 16 four ports routed to the back panel, two to the front panel connector, and one to seven USB 1.1 ports via the ICH2 and I/O controller; The interface supports:...connectors: The D845PT board has: • Three PCI bus add-in card connectors (PCI bus connector 3 slot shared with CNR) • One AGP connector • One optional CNR connector (slot shared with PCI bus connector 3) The D845BG board has: • Six PCI bus add-in ports. Intel Desktop Boards D845PT...
Intel Desktop Board D845PT/D845BG Product Guide
Page 67
... the computer, the interconnecting cable, and the external devices themselves. 67 Do not use these connectors for example) to the computer chassis. A fault in board and peripheral interface connectors • Front panel connectors CAUTION Many of the midboard and front panel connectors provide operating voltage (+5 V dc and +12 V dc, for powering devices external to devices inside...
... the computer, the interconnecting cable, and the external devices themselves. 67 Do not use these connectors for example) to the computer chassis. A fault in board and peripheral interface connectors • Front panel connectors CAUTION Many of the midboard and front panel connectors provide operating voltage (+5 V dc and +12 V dc, for powering devices external to devices inside...
Intel Desktop Board D845PT/D845BG Product Guide
Page 68
... Color Green Purple Black Black Burgundy Teal Black Black Black Pink Lime green Light blue OM12636 Figure 20. Intel Desktop Boards D845PT and D845BG Product Guide Back Panel Connectors Figure 20 shows the back panel connectors on the back panel, is designed to this output. 68 Poor audio quality may occur if passive (non-amplified) speakers are...
... Color Green Purple Black Black Burgundy Teal Black Black Black Pink Lime green Light blue OM12636 Figure 20. Intel Desktop Boards D845PT and D845BG Product Guide Back Panel Connectors Figure 20 shows the back panel connectors on the back panel, is designed to this output. 68 Poor audio quality may occur if passive (non-amplified) speakers are...
Intel Desktop Board D845PT/D845BG Product Guide
Page 73
Table 31. Pin Signal name 2 VREG_FP_USBPWR0 4 USB_FPP1- 6 USB_FPP1+ 8 Ground 10 USB_FP_OC0 73 Front Panel Connectors Table 31 shows the pin assignments for pin assignments) Front panel Alternate power/sleep LED Front panel audio Figure 25. Front Panel Connectors Figure 25 shows the location of the front panel connectors. 12 9 10 Technical Reference 1 2 3 4 A 5 6 7 8 10 16 15 2 1 Item A B C D B CD OM12641 Description...
Table 31. Pin Signal name 2 VREG_FP_USBPWR0 4 USB_FPP1- 6 USB_FPP1+ 8 Ground 10 USB_FP_OC0 73 Front Panel Connectors Table 31 shows the pin assignments for pin assignments) Front panel Alternate power/sleep LED Front panel audio Figure 25. Front Panel Connectors Figure 25 shows the location of the front panel connectors. 12 9 10 Technical Reference 1 2 3 4 A 5 6 7 8 10 16 15 2 1 Item A B C D B CD OM12641 Description...
Quick Reference Guide
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... as fans and internal peripherals. Intel Desktop Boards D845PT and D845BG 5 Quick Reference M. Speaker G. Secondary IDE connector AD1885 codec N. Primary IDE connector B. Auxiliary line-in the load presented by the external devices could cause damage to the computer chassis. BIOS configuration jumper block connector S. Intel® 82845 Memory Controller U. Front panel audio connector CAUTION Many of the midboard...
... as fans and internal peripherals. Intel Desktop Boards D845PT and D845BG 5 Quick Reference M. Speaker G. Secondary IDE connector AD1885 codec N. Primary IDE connector B. Auxiliary line-in the load presented by the external devices could cause damage to the computer chassis. BIOS configuration jumper block connector S. Intel® 82845 Memory Controller U. Front panel audio connector CAUTION Many of the midboard...
Quick Reference Guide
Page 7
... connectors Z. DIMM sockets K. Serial port B connector L. Primary IDE connector O. Diskette drive connector P. Intel Desktop Boards D845PT and D845BG 7 Quick Reference Intel 82845 Memory Controller Hub (MCH) H. Power connector M. Intel 82801BA I . Front chassis fan connector W. Communication and Networking Riser (CNR) (optional) AA. Processor socket I /O Controller Hub (ICH2) R. CD-ROM connector (ATAPI) D. Front panel USB connector X. Front panel audio connector CAUTION Many of the midboard and front panel connectors...
... connectors Z. DIMM sockets K. Serial port B connector L. Primary IDE connector O. Diskette drive connector P. Intel Desktop Boards D845PT and D845BG 7 Quick Reference Intel 82845 Memory Controller Hub (MCH) H. Power connector M. Intel 82801BA I . Front chassis fan connector W. Communication and Networking Riser (CNR) (optional) AA. Processor socket I /O Controller Hub (ICH2) R. CD-ROM connector (ATAPI) D. Front panel USB connector X. Front panel audio connector CAUTION Many of the midboard and front panel connectors...