BOXD845EBG2L Intel, BOXD845EBG2L Datasheet
BOXD845EBG2L
Specifications of BOXD845EBG2L
BOXD845EBG2L Summary of contents
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... Technical Product Specification ® The Intel Desktop Boards D845EBG2/D845EPT2 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 D845EBG2/D845EPT2 Specification Update. Desktop Board ® April 2002 ...
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... Intel products are not intended for use in medical, life saving, or life sustaining applications or for any other application in which the failure of the Intel product could create a situation where personal injury or death may occur. ...
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... Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for these Intel D845EBG2 and D845EPT2. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Boards D845EBG2 and D845EPT2 and their components to the vendors, system integrators, and other engineers and technicians who need this level of information ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Other Common Notation # 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 Boards D845EBG2 and D845EPT2, and X is the instance of the particular part at that general location ...
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... Audio Subsystem (Optional) .......................................................................................30 1.10.1 Audio Connectors.........................................................................................31 1.10.2 Audio Subsystem Software ..........................................................................31 1.11 LAN Subsystem (Optional) .........................................................................................32 ® 1.11.1 Intel 82562ET Platform LAN Connect Device .............................................32 1.11.2 RJ-45 LAN Connector with Integrated LEDs ................................................32 1.11.3 LAN Subsystem Software ............................................................................33 1.12 CNR (Optional) ...........................................................................................................33 1.13 Hardware Management Subsystem............................................................................34 1 ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 2 Technical Reference 2.1 Introduction.................................................................................................................47 2.2 Memory Map ..............................................................................................................47 2.3 Fixed I/O Map.............................................................................................................48 2.4 DMA Channels ...........................................................................................................49 2.5 PCI Configuration Space Map ....................................................................................49 2.6 Interrupts ....................................................................................................................50 2.7 PCI Interrupt Routing Map ..........................................................................................51 2.8 Connectors .................................................................................................................53 2.8.1 Back Panel Connectors................................................................................54 2.8.2 Internal I/O Connectors ................................................................................57 2 ...
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... BIOS Beep Codes ....................................................................................................126 Figures 1. Desktop Board D845EBG2 Components....................................................................14 2. Desktop Board D845EPT2 Components ....................................................................15 3. Block Diagram ............................................................................................................16 4. Intel 845E Chipset Block Diagram ..............................................................................24 5. USB Port Configuration ..............................................................................................26 6. Audio Subsystem Block Diagram................................................................................30 7. ICH4 and CNR Signal Interface ..................................................................................33 8. Thermal Monitoring.....................................................................................................36 ® ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 9. Location of the Standby Power Indicator LED ............................................................44 10. Back Panel Connectors ..............................................................................................54 11. Audio Connectors .......................................................................................................58 12. Power and Hardware Control Connectors ..................................................................60 13. D845EBG2 Add-in Board and Peripheral Interface Connectors..................................63 14. D845EPT2 Add-in Board and Peripheral Interface Connectors ..................................64 15 ...
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Front Chassis Fan Connector .....................................................................................62 33. Chassis Intrusion Connector.......................................................................................62 34. CNR Connector (Optional)..........................................................................................65 35. PCI Bus Connectors ...................................................................................................66 36. AGP Connector ..........................................................................................................67 37. Diskette Drive Connector............................................................................................68 38. PCI IDE Connectors ...................................................................................................69 39. SCSI LED Connector..................................................................................................69 40. Front Panel Audio ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 80. Exit Menu .................................................................................................................118 81. BIOS Error Messages...............................................................................................119 82. Uncompressed INIT Code Checkpoints....................................................................121 83. Boot Block Recovery Code Checkpoints ..................................................................121 84. Runtime Code Uncompressed in F000 Shadow RAM ..............................................122 85. Bus Initialization Checkpoints ...................................................................................125 86. Upper Nibble High Byte Functions............................................................................125 87 ...
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... LAN Subsystem (Optional) .........................................................................................32 1.12 CNR (Optional) ...........................................................................................................33 1.13 Hardware Management Subsystem............................................................................34 1.14 Power Management ...................................................................................................37 1.1 Board Differences This TPS describes these Intel Boards are identical with the exception of the items listed in Table 1. Table 1. Summary of Board Differences • ATX Form Factor (12.00 inches by 8.20 inches) D845EBG2 • ...
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... The Desktop Boards D845EBG2/D845EPT2 have been designed to support DIMMs based on 512 Mbit technology for a maximum onboard capacity GB, but this technology has not been validated on this board. Please refer to the following Intel web sites. For the Desktop Board D845EBG2: http://developer.intel.com/design/motherbd/bg2/bg2_mem.htm For the Desktop Board D845EPT2: http://developer.intel.com/design/motherbd/pt2/pt2_mem.htm ® ...
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... The board’s compliance level with ACPI, Plug and Play, and SMBIOS 1.2.2 Manufacturing Options Table 3 describes the manufacturing options on the Desktop Boards D845EBG2 and D845EPT2. 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 3. ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.2.3 Board Layouts Figure 1 shows the location of the major components on the Desktop Board D845EBG2 Audio codec (optional) B Intel 82562ET PLC device (optional) C AGP connector D Back panel connectors E +12 V power connector (ATX12V) F Intel 82845E Memory Controller Hub (MCH) µ ...
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... I/O controller J Power connector Figure 2. Desktop Board D845EPT2 Components IDE connectors L Diskette drive connector M 4 Mbit Firmware Hub (FWH) N Speaker O Front panel connector P Intel 82801DB I/O Controller Hub (ICH4) Q Battery R PCI bus add-in card connectors S CNR connector (optional) Product Description OM14236 15 ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.2.4 Block Diagram Figure block diagram of the major functional areas of the Desktop Boards D845EBG2 and D845EPT2. See Figure 5 on page 26 for USB port routing. = connector or socket Primary/ Secondary IDE µPGA478 System Bus Processor Socket ...
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... Online Support To find information about… Intel Desktop Boards D845EBG2 and D845EPT2 under “Desktop Board Products” or “Desktop Board Support” Available configurations for the Desktop Board D845EBG2 Available configurations for the Desktop Board D845EPT2 Processor data sheets ICH4 addressing ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.5 Design Specifications Table 4 lists the specifications applicable to the Desktop Boards D845EBG2 and D845EPT2. Table 4. Specifications Reference Specification Name Title AC ’97 Audio Codec ’97 ACPI Advanced Configuration and Power Interface Specification AGP Accelerated Graphics Port ...
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... Revision 2.2, http://www.pcisig.com/ December 18, 1998, specifications PCI Special Interest Group. Revision 1.1, http://www.pcisig.com/ December 18, 1998, specifications PCI Special Interest Group. Version 1.0a, http://www.microsoft.com/ May 5, 1994, hwdev/tech/PnP/ Compaq Computer Corporation, default.asp Phoenix Technologies Limited, and Intel Corporation. Product Description continued 19 ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 4. Specifications (continued) Reference Specification Name Title PXE Preboot Execution Environment SFX SFX/SFX12V Power Supply Design Guide SMBIOS System Management BIOS UHCI Universal Host Controller Interface Design Guide USB Universal Serial Bus Specification WfM ...
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... A Celeron processor in a µPGA478 socket with a system bus of 400 MHz The list of supported processors for the Desktop Boards D845EBG2 and D845EPT2 is available from Intel’s World Wide Web site. All supported onboard memory can be cached the cachability limit of the processor. See the processor’s data sheet for cachability limits. ...
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... The Desktop Boards D845EBG2 and D845EPT2 have been designed to support DIMMs based on 512 Mbit technology for a maximum onboard capacity GB, but this technology has not been validated on this board. Please refer to the following Intel web sites for the latest lists of tested memory: For the Desktop Board D845EBG2: http://developer ...
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Table 5 lists the supported DIMM configurations. Table 5. Supported Memory Configurations DIMM Number of DDR SDRAM (Note 1) Capacity Sides Density Mbit 128 Mbit 128 Mbit 128 MB DS ...
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... Intel 845E Chipset The Intel 845E chipset consists of the following devices: • Intel 82845E Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus • Intel 82801DB I/O Controller Hub (ICH4) with AHA bus • Firmware Hub (FWH) The MCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the Accelerated Hub Architecture interface. The ICH4 is a centralized controller for the Desktop Board’ ...
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AGP The AGP connector supports AGP add-in cards with 1.5 V Switching Voltage Level (SVL). Legacy 3.3 V AGP cards are not supported. For information about The location of the AGP connector The signal names of the AGP connector ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.8.2 USB The Desktop Boards D845EBG2 and D845EPT2 support up to six USB 2.0 ports and fully support UHCI and EHCI and use UHCI- and EHCI-compatible drivers. For more than six USB devices, an external hub can be connected to any of the ports. ...
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IDE Support 1.8.3.1 IDE Interfaces The ICH4’s IDE controller has two independent bus-mastering IDE interfaces that can be independently enabled. The IDE interfaces support the following modes: • Programmed I/O (PIO): processor controls data transfer. • 8237-style DMA: DMA ...
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... PS/2-style mouse and keyboard interfaces • Interface for one 1. 2.88 MB diskette drive • Intelligent power management, including a programmable wake-up event interface • PCI power management support • Fan tachometer inputs The BIOS Setup program provides configuration options for the I/O controller. ...
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Parallel Port The 25-pin D-Sub parallel port connector is located on the back panel. Use the BIOS Setup program to set the parallel port mode. For information about The location of the parallel port connector The signal names of ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.10 Audio Subsystem (Optional) The audio subsystem consists of the following devices: • Intel 82801DB I/O Controller Hub (ICH4) • Analog Devices AD1981A audio codec (optional) The audio subsystem includes these features: • Split digital/analog architecture for improved S/N (signal-to-noise) ratio: ≥ • ...
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... For information about The location of the ATAPI CD-ROM connector The signal names of the ATAPI CD-ROM connector 1.10.2 Audio Subsystem Software Audio software and drivers are available from Intel’s World Wide Web site. For information about Obtaining audio software and drivers Product Description Refer to Section 2 ...
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... Supports LAN wake capabilities 1.11.1 Intel ® 82562ET Platform LAN Connect Device The Intel 82562ET component provides an interface to the back panel RJ-45 connector with integrated LEDs. This physical interface may alternately be provided through the CNR connector. The Intel 82562ET provides the following functions: • ...
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... Obtaining LAN software and drivers 1.12 CNR (Optional) The Communication and Networking Riser (CNR) connector provides an interface that supports the audio, modem, and LAN interfaces of the Intel 845E chipset. Figure 7 shows the signal interface between the riser and the ICH4. Intel 82801DB ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification ✏ NOTE The brand and type of audio codec used on the CNR card must match that of the Desktop Boards’ codec (Analog Devices AD1981A). ✏ NOTE Check with your CNR vendor to ensure that the CNR card has been tested with ICH4-based systems. ✏ ...
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... A hardware monitoring ASIC • A hardware monitoring and fan control ASIC The features of these components are described in this section. Contact your Intel sales representative to determine which type of hardware monitoring ASIC is present on your Intel Desktop Board. 1.13.1.1 Hardware Monitoring ASIC The features of the hardware monitoring ASIC (Analog Devices ADM1025 or equivalent) include: • ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.13.1.3 Thermal Monitoring Figure 8 shows the location of the sensors and fan connectors Note: 1.13.2 Fan Monitoring Fan monitoring can be implemented using Intel Manager, or third-party software. The level of monitoring and control is dependent on the hardware monitoring ASIC used with the Desktop Board. ...
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... AC power. The security feature uses a mechanical switch on the chassis that attaches to the chassis intrusion connector. The mechanical switch is open for normal computer operation. ✏ NOTE Chassis intrusion detection may be implemented using Intel LANDesk Client Manager or third-party software. 1.14 Power Management Power management is implemented at several levels, including: • ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.14.1 ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with the Desktop Boards D845EBG2 and D845EPT2 requires an operating system that provides full ACPI support. ACPI features include: • ...
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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 ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.14.1.2 Wake-up Devices and Events Table 9 lists the devices or specific events that can wake the computer from specific states. Table 9. Wake-up Devices and Events These devices/events can wake up the computer… CNR LAN Modem (back panel Serial Port A) ...
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Resume on Ring enables telephony devices to access the computer when power-managed state. The method used depends on the type of telephony device (external or internal). ✏ NOTE The use of Resume on Ring and Wake ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 11. Fan Connector Function/Operation for Desktop Boards with a Hardware Monitoring and Fan Control ASIC Connector Description • + connection for a processor fan or active fan heatsink. Processor fan • Fan the state. Fan is off when the system is off or in the S3, S4 state. ...
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Instantly Available PC Technology CAUTION For Instantly Available PC technology, 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 Instantly Available ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 1.14.2 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 9 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 Desktop Board ...
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Wake from USB USB bus activity wakes the computer from ACPI states. ✏ NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB. 1.14.2.8 Wake from PS/2 Devices PS/2 device ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 46 ...
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Technical Reference What This Chapter Contains 2.1 Introduction.................................................................................................................47 2.2 Memory Map ..............................................................................................................47 2.3 Fixed I/O Map.............................................................................................................48 2.4 DMA Channels ...........................................................................................................49 2.5 PCI Configuration Space Map ....................................................................................49 2.6 Interrupts ....................................................................................................................50 2.7 PCI Interrupt Routing Map ..........................................................................................51 2.8 Connectors .................................................................................................................53 2.9 ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 2.3 Fixed I/O Map Table 13. I/O Map Address (hex) Size 0000 - 00FF 256 bytes 0170 - 0177 8 bytes 01F0 - 01F7 8 bytes (Note 1) 0228 - 022F 8 bytes (Note 1) 0278 - 027F 8 bytes (Note 1) 02E8 - 02EF 8 bytes (Note 1) 02F8 - 02FF ...
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... Open Function Number (hex) Description 00 Memory controller of Intel 82845E component 00 Host to AGP bridge (virtual P2P) 00 Hub link to PCI bridge 00 Intel 82801DB ICH4 PCI to LPC bridge 01 IDE controller 03 SMBus controller 05 AC ’97 audio controller 06 AC ’97 modem controller (optional) 00 USB UHCI controller 1 ...
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... Intel Desktop Board D845EBG2/D845EPT2 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 ICH4 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 ...
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PCI Interrupt Routing Map This section describes interrupt sharing and how the interrupt signals are connected between the PCI bus connectors and onboard PCI devices. The PCI specification specifies how interrupts can be shared between devices attached to the ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 17. PCI Interrupt Routing Map PCI Interrupt Source PIRQA AGP connector INTA ICH4 USB UHCI controller 1 INTA SMBus controller ICH4 USB UHCI controller 2 AC ’97 ICH4 Audio/Modem ICH4 LAN ICH4 USB UHCI controller 3 ICH4 USB 2.0 EHCI controller ...
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Connectors CAUTION Only the back panel USB, front panel USB, VGA, and PS/2 connectors of the Desktop Boards D845EBG2 and D845EPT2 have overcurrent protection. The Desktop Boards’ internal connectors are not overcurrent protected and should connect only to devices ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 2.8.1 Back Panel Connectors Figure 10 shows the location of the back panel connectors. The back panel connectors are color-coded in compliance with PC 99 recommendations. The figure legend below lists the colors used Item Description A PS/2 mouse port ...
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Table 18. PS/2 Mouse/Keyboard Connector Pin Signal Name 1 Data 2 Not connected 3 Ground (Fused) 5 Clock 6 Not connected Table 19. USB Connectors Pin Signal Name (Fused) 2 USB# 3 USB 4 ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 21. Serial Port A Connector Pin Signal Name 1 DCD (Data Carrier Detect) 2 RXD# (Receive Data) 3 TXD# (Transmit Data) 4 DTR (Data Terminal Ready) 5 Ground 6 DSR (Data Set Ready) 7 RTS (Request to Send) 8 CTS (Clear to Send (Ring Indicator) Table 22 ...
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Internal I/O Connectors The internal I/O connectors are divided into the following functional groups: • Audio (see page 58) Auxiliary line in ATAPI CD-ROM • Power and hardware control (see page 60) Fans (three) ATX12V ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 2.8.2.2 Audio Connectors Figure 11 shows the location of the audio connectors. Item Description A Auxiliary line in, ATAPI style B ATAPI CD-ROM ✏ NOTE The front panel audio connector is described in Section 2.8.3, beginning on page 70 Color For more information see: ...
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Table 26. Auxiliary Line In Connector Pin Signal Name 1 Left auxiliary line in 2 Ground 3 Ground 4 Right auxiliary line in Table 27. ATAPI CD-ROM Connector Pin Signal Name 1 Left audio input from CD-ROM 2 CD audio ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 2.8.2.3 Power and Hardware Control Connectors Figure 12 shows the location of the power and hardware control connectors Item Description A +12 V power connector (ATX12V) B Rear chassis fan C Processor fan D Main power E Front chassis fan F Chassis intrusion Figure 12 ...
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NOTE Use only ATX12V-compliant power supplies with the Desktop Board D845EBG2 and only ATX12V- or SFX12V-compliant power supplies with the Desktop Board D845EPT2. ATX12V and SFX12V power supplies have an additional power lead that provides required supplemental power for ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 31. Main Power Connector Pin Signal Name Ground Ground Ground 8 PWRGD (Power Good (Standby) 10 +12 V Table 32. Front Chassis Fan Connector Pin Signal Name 1 (Note (Note 2) Notes: 1. Pin 1 is Control if the Desktop Board uses the hardware monitoring and fan control ASIC. ...
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Add-in Board and Peripheral Interface Connectors Figure 13 shows the location of the add-in board connector and peripheral connectors for the Desktop Board D845EBG2. Note the following considerations for the PCI bus connectors (for both Desktop Boards): • All ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Figure 14 shows the location of the add-in board connector and peripheral connectors for the Desktop Board D845EPT2 Item Description A Communication and Networking Riser (CNR) Table 34 B PCI bus connector 3 C PCI bus connector 2 D PCI bus connector 1 ...
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Table 34. CNR Connector (Optional) Pin Signal Name A1 Reserved A2 Reserved A3 Ground A4 Reserved A5 Reserved A6 Ground A7 LAN_TXD2 A8 LAN_TXD0 A9 Ground A10 LAN_CLK A11 LAN_RXD1 A12 Reserved A13 USB+ A14 Ground A15 USB- A16 +12 ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 35. PCI Bus Connectors Pin Signal Name Pin A1 Ground (TRST#)* (TMS (TDI INTA INTC Reserved B9 A10 +5 V (I/O) B10 A11 Reserved B11 A12 Ground B12 A13 Ground B13 A14 +3.3 V aux B14 A15 ...
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Table 36. AGP Connector Pin Signal Name Pin A1 + TYPEDET Reserved B3 A4 Not connected B4 A5 Ground B5 A6 INTA RST GNT1 Vcc3.3 B9 A10 ST1 B10 ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 37. Diskette Drive Connector Pin Signal Name 1 Ground 3 Key 5 Key 7 Ground 9 Ground 11 Ground 13 Ground 15 Ground 17 Not connected 19 Ground 21 Ground 23 Ground 25 Ground 27 Not connected 29 Ground 31 Ground 33 Ground 68 Pin Signal Name 2 DENSEL 4 Not connected 6 DRVDEN1 8 FDINDX# ...
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Table 38. PCI IDE Connectors Pin Signal Name 1 Reset IDE 3 Data 7 5 Data 6 7 Data 5 9 Data 4 11 Data 3 13 Data 2 15 Data 1 17 Data 0 19 Ground 21 DDRQ0 [DDRQ1] ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 2.8.3 External I/O Connectors Figure 15 shows the locations of the external I/O connectors Item Description A Front panel audio B Serial port B C Auxiliary front panel power/sleep/message-waiting LED D Front panel E Front panel USB 70 For more information see: ...
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Table 40. Front Panel Audio Connector Pin Signal Name 1 MIC_IN_FP 3 MIC_BIAS 5 R_FNTOUT 7 Ground 9 L_FNT_OUT ✏ NOTE The front panel audio connector is alternately used as a jumper block for routing audio signals. Refer to Section ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 2.8.3.2 Front Panel Connector This section describes the functions of the front panel connector. Table 44 lists the signal names of the front panel connector. Table 44. Front Panel Connector Pin Signal In/Out Hard Drive Activity LED 1 HD_PWR ...
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Table 46. States for a Two-Color Power LED LED State Description Off Power off Steady Green Running Blinking Green Running/message waiting Steady Yellow Sleeping Blinking Yellow Sleeping/message waiting ✏ NOTE To use the message waiting function, ACPI must be enabled ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 2.9 Jumper Blocks CAUTION Do not move any jumpers with the power on. Always turn off the power and unplug the power cord from the computer before changing a jumper setting. Otherwise, the Desktop Board could be damaged. ...
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CAUTION Do not place jumpers on this block in any configuration other than the one described in Table 47. Other jumper configurations are not supported and could damage the Desktop Board. Table 47. Front Panel Audio Connector/Jumper Block Jumper Setting ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 2.10 Mechanical Considerations 2.10.1 D845EBG2 Form Factor The Desktop Board D845EBG2 is designed to fit into an ATX-form-factor chassis. Figure 17 illustrates the mechanical form factor for the Desktop Board D845EBG2. Dimensions are given in inches [millimeters]. The outer dimensions are 12.00 inches by 8.20 inches [304.80 millimeters by 208 ...
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D845EPT2 Form Factor The Desktop Board D845EPT2 is designed to fit into either a microATX or an ATX-form-factor chassis. Figure 18 illustrates the mechanical form factor for the Desktop Board D845EPT2. Dimensions are given in inches [millimeters]. The outer ...
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... ATX specification. See Section 1.5 for information about the ATX specification. ✏ NOTE The I/O shield drawings in this document are for reference only. An I/O shield compliant with the ATX chassis specification 2.03 is available from Intel. 0.039 Dia. [1.000] 0.884 [22.450] 0.276 [7 ...
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TYP [20±0.254] 0.039 Dia. [1.000] 0.884 [22.450] 0.276 [7.012] 0.00 0.465 [11.811] 0.567 [14.400] Figure 20. I/O Shield Dimensions (for Desktop Boards with no LAN Subsystem) 6.390 Ref [162.300] 3x Dia 0.330 [8.380] Technical Reference 0.063±0.005 [1.600±0.120] 8X R0.5 ...
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... Electrical Considerations 2.11.1 Power Consumption Table 49 lists voltage and current measurements for a computer that contains the Desktop Board D845EBG2/D845EPT2 and the following: • 2.4 GHz Intel Pentium 4 processor with a 512 KB cache • AGP card • 512 MB DDR SDRAM PC266 • ...
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Standby Current Requirements CAUTION If the standby current necessary to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity, the Desktop Boards D845EBG2 and D845EPT2 may lose register settings stored in memory, etc. Calculate ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification ✏ NOTE IBM PS/2 Port Specification (Sept 1991) states: • 275 mA for keyboard • for the mouse (nonwake-enable device) PCI/AGP requirements are calculated by totaling the following: • One wake-enabled device @ 375 mA, plus • Five nonwake-enabled devices @ 20 mA each, plus USB requirements are calculated as: • ...
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Power Supply Considerations CAUTION The +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure can damage the power supply. The total amount of standby current required ...
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... Table 52. Thermal Considerations for Components Component Intel Pentium 4 processor Intel 82845E MCH Intel 82801DB ICH4 For information about Intel Pentium 4 processor datasheets and specification updates 84 D Maximum Case Temperature For processor case temperature, see processor datasheets and processor specification updates o 83 ...
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Reliability The Mean Time Between Failures (MTBF) prediction is calculated using component and subassembly random failure rates. The calculation is based on the Bellcore Reliability Prediction Procedure, TR-NWT-000332, Issue 4, September 1991. The MTBF prediction is used to estimate ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 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 54 lists the safety regulations the Desktop Boards D845EBG2 and D845EPT2 comply with when correctly installed in a compatible host system ...
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... UL joint US/Canada Recognized Component mark: Consists of lower case c followed by a stylized backward UR and followed by a small US. Includes adjacent UL file number for Intel Desktop Boards: E210882 (component side). • FCC Declaration of Conformity logo mark for Class B equipment; to include Intel name and D845EBG2 and D845EPT2 model designation (solder side). • ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 88 ...
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... BIOS Security Features..............................................................................................96 3.1 Introduction The Desktop Boards D845EBG2 and D845EPT2 use an Intel/AMI BIOS that is stored in the Firmware Hub (FWH) and can be updated using a disk-based program. The FWH contains the BIOS Setup program, POST, the PCI auto-configuration utility, and Plug and Play support. ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 3.2 BIOS Flash Memory Organization The Firmware Hub (FWH) includes a 4 Mbit (512 KB) symmetrical flash memory device. Internally, the device is grouped into eight 64-KB blocks that are individually erasable, lockable, and unlockable. 3.3 Resource Configuration 3 ...
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System Management BIOS (SMBIOS) SMBIOS is a Desktop Management Interface (DMI) compliant method for managing computers in a managed network. The main component of SMBIOS is the Management Information Format (MIF) database, which contains information about the computing system ...
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... NOTE Legacy USB support is for keyboards, mice, and hubs only. Other USB devices are not supported in legacy mode. 3.6 BIOS Updates The BIOS can be updated using either of the following utilities, which are available on the Intel World Wide Web site: • ® ...
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... Custom Splash Screen During POST, an Intel splash screen is displayed by default. This splash screen can be replaced with a custom splash screen. A utility is available from Intel to assist with creating a custom splash screen. The custom splash screen can be programmed into the flash memory using the BIOS upgrade utility ...
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... These factors affect system boot speed: • Selecting and configuring peripherals properly • Using an optimized BIOS, such as the Intel Rapid 3.9.1 Peripheral Selection and Configuration The following techniques help improve system boot speed: • Choose a hard drive with parameters such as “power-up to data ready” less than eight seconds, that minimize hard drive startup delays. • ...
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... 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 with minimum initialization times can also contribute to a boot time that might be so fast that necessary logo screens and POST messages cannot be seen ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 3.10 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: • ...
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BIOS Setup Program What This Chapter Contains 4.1 Introduction.................................................................................................................97 4.2 Maintenance Menu .....................................................................................................98 4.3 Main Menu..................................................................................................................99 4.4 Advanced Menu........................................................................................................100 4.5 Security Menu ..........................................................................................................113 4.6 Power Menu .............................................................................................................114 4.7 Boot Menu ................................................................................................................115 4.8 Exit Menu .................................................................................................................118 4.1 Introduction The BIOS ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 58 lists the function keys available for menu screens. Table 58. BIOS Setup Program Function Keys BIOS Setup Program Function Key <←> or <→> <↑> or <↓> <Tab> <Enter> <F9> <F10> <Esc> 4.2 Maintenance Menu To access this menu, select Maintenance on the menu bar at the top of the screen ...
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Main Menu To access this menu, select Main on the menu bar at the top of the screen. Maintenance Main Table 60 describes the Main menu. This menu reports processor and memory information and is for configuring the system ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 4.4 Advanced Menu To access this menu, select Advanced on the menu bar at the top of the screen. Maintenance Main Table 61 describes the Advanced Menu. This menu is used for setting advanced features that are available through the chipset. ...
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PCI Configuration Submenu To access this submenu, select Advanced on the menu bar and then PCI Configuration. Maintenance Main The submenu shown in Table 62 is used to configure the IRQ priority of PCI slots individually. Table 62. PCI ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 62. PCI Configuration Submenu (continued) Feature Options • Auto (default) PCI Slot6 IRQ Priority • 5 (Note 1, Note 2) • 9 • 10 • 11 Notes 1. Additional interrupts may be available if certain onboard devices (such as the serial and parallel ports) are disabled. ...
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Peripheral Configuration Submenu To access this submenu, select Advanced on the menu bar and then Peripheral Configuration. Maintenance Main The submenu represented in Table 64 is used for configuring computer peripherals. Table 64. Peripheral Configuration Submenu Feature Options • ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 64. Peripheral Configuration Submenu (continued) Feature Options • Disabled Parallel port • Enabled • Auto (default) • Output Only Mode • Bi-directional (default) • EPP • ECP • 378 (default) Base I/O address (This feature is present • ...
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IDE Configuration Submenu To access this submenu, select Advanced on the menu bar and then IDE Configuration. Maintenance Main The menu represented in Table 65 is used to configure IDE device options. Table 65. IDE Configuration Submenu Feature Options ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 4.4.4.1 Primary/Secondary IDE Master/Slave Submenus To access these submenus, select Advanced on the menu bar, then IDE Configuration, and then the master or slave to be configured. Maintenance Main There are four IDE submenus: primary master, primary slave, secondary master, and secondary slave ...
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Table 66. Primary/Secondary IDE Master/Slave Submenus (continued) Feature Options • Auto (default) DMA Mode • SWDMA0 • SWDMA1 • SWDMA2 • MWDMA0 • MWDMA1 • MWDMA2 • UDMA0 • UDMA1 • UDMA2 • UDMA3 • UDMA4 • UDMA5 Cable Detected ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 4.4.5 Diskette Configuration Submenu To access this menu, select Advanced on the menu bar and then Diskette Configuration. Maintenance Main The submenu represented by Table 67 is used for configuring the diskette drive. Table 67. Diskette Configuration Submenu Feature Options • ...
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Event Log Configuration Submenu To access this menu, select Advanced on the menu bar and then Event Log Configuration. Maintenance Main The submenu represented by Table 68 is used to configure the event logging features. Table 68. Event Log ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 4.4.7 Video Configuration Submenu To access this menu, select Advanced on the menu bar and then Video Configuration. Maintenance Main The submenu represented in Table 69 is for configuring the video features. Table 69. Video Configuration Submenu Feature Options • ...
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USB Configuration Submenu To access this menu, select Advanced on the menu bar and then USB Configuration. Maintenance Main The submenu represented in Table 70 is for configuring the USB features. Table 70. USB Configuration Submenu Feature Options • ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 4.4.9 Chipset Configuration Submenu To access this menu, select Advanced on the menu bar and then Chipset Configuration. Maintenance Main The submenu represented in Table 71 is for configuring the chipset options. Table 71. Chipset Configuration Submenu Feature Options • ...
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Table 71. Primary/Secondary IDE Master/Slave Submenus (continued) Feature Options • 7 SDRAM RAS# Active to Precharge • 6 • 5 (default) • 2.5 SDRAM CAS# Latency • 2.0 (default) • 3 SDRAM RAS# to CAS# Delay • 2 (default) • ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 4.6 Power Menu To access this menu, select Power from the menu bar at the top of the screen. Maintenance Main The menu represented in Table 73 is for setting the power management features. Table 73. Power Menu Feature Options ...
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... Disabled Disables/enables PXE boot to LAN. (default) Note: When set to Enabled, you must reboot for the • Enabled Intel Boot Agent device to be available in the Boot Device menu. • Disabled Disables/enables booting to USB boot devices. • Enabled (default) Select to display ...
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... Intel th 4 Boot Device (Note) • Disabled Note: The boot device identifier for Intel Boot Agent (IBA) may vary depending on the BIOS release. 116 Advanced Security Power Description Specifies the boot sequence according to the device type. The computer will attempt to boot from up to five devices as specified here ...
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Hard Disk Drives Submenu To access this menu, select Boot on the menu bar and then Hard Disk Drives. Maintenance Main The submenu represented in Table 77 is for setting hard disk drive priority. Table 77. Hard Disk Drives ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 4.7.4 ATAPI CD-ROM Drives Submenu To access this menu, select Boot on the menu bar and then ATAPI CD-ROM Drives. Maintenance Main The submenu represented in Table 79 is for setting ATAPI CD-ROM drive priority. Table 79. ATAPI CD-ROM Drives Submenu ...
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Error Messages and Beep Codes What This Chapter Contains 5.1 BIOS Error Messages...............................................................................................119 5.2 Port 80h POST Codes..............................................................................................121 5.3 Bus Initialization Checkpoints ...................................................................................125 5.4 Speaker ...................................................................................................................126 5.5 BIOS Beep Codes ....................................................................................................126 5.1 BIOS Error Messages Table 81 lists the ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 81. BIOS Error Messages (continued) Error Message Checking NVRAM..... Update OK! Updated Failed Keyboard Error KB/Interface Error Memory Size Decreased Memory Size Increased Memory Size Changed No Boot Device Available Off Board Parity Error On Board Parity Error ...
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... Onboard Floppy Controller (if any) is initialized. Compressed recovery code is uncompressed in F000:0000 in Shadow RAM and give control to recovery code in F000 Shadow RAM. Initialize interrupt vector tables, initialize system timer, initialize DMA controller and interrupt controller. E8 Initialize extra (Intel Recovery) Module. E9 Initialize floppy drive. EA Try to boot from floppy ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 84. Runtime Code Uncompressed in F000 Shadow RAM Code Description of POST Operation 03 NMI is Disabled. To check soft reset/power-on. 05 BIOS stack set. Going to disable cache if any. 06 POST code to be uncompressed. 07 CPU init and CPU data area init to be done. ...
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Table 84. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation 40 To prepare the descriptor tables enter in virtual mode for memory test enable interrupts for diagnostics mode initialize ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 84. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation 84 Lock-key checking over. To check for memory size mismatch with CMOS. 85 Memory size check done. To display soft error and check for password or bypass setup. ...
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Table 84. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation AE Uncompress SMBIOS module and init SMBIOS code and form the runtime SMBIOS image in shadow. B1 Going to copy any code to specific area. ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification Table 87 describes the lower nibble of the high byte and indicates the bus on which the routines are being executed. Table 87. Lower Nibble High Byte Functions Value Description 0 Generic DIM (Device Initialization Manager) 1 On-board System devices ...
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If POST completes normally, the BIOS issues one short beep before passing control to the operating system. Table 88. Beep Codes Beep Description 1 Refresh failure 2 Parity cannot be reset 3 First 64 KB memory failure 4 Timer not ...
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... Intel Desktop Board D845EBG2/D845EPT2 Technical Product Specification 128 ...