Intel D845GEBV2 - OCTOBRE 2002 Manual
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Intel D845GEBV2 - OCTOBRE 2002 Manual

Intel D845GEBV2 - OCTOBRE 2002 Manual

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Intel
D845GEBV2/D845GERG2

Technical Product Specification

®
The Intel
Desktop Board D845GEBV2/D845GERG2 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 D845GEBV2/D845GERG2 Specification Update.
®
Desktop Board
October 2002
Order Number: C14584-001

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Summary of Contents for Intel D845GEBV2 - OCTOBRE 2002

  • Page 1: Technical Product Specification

    Order Number: C14584-001 ® The Intel Desktop Board D845GEBV2/D845GERG2 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 D845GEBV2/D845GERG2 Specification Update.

  • Page 2: Revision History

    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.

  • Page 3: Intended Audience

    Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, ® power and environmental requirements, and the BIOS for these Intel Desktop Boards: D845GEBV2 and D845GERG2. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Boards D845GEBV2 and D845GERG2 and their components to the vendors, system integrators, and other engineers and technicians who need this level of information.
  • Page 4 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification CAUTION Cautions are included to help you avoid damaging hardware or losing data. WARNING Warnings indicate conditions, which if not observed, can cause personal injury. Other Common Notation Used after a signal name to identify an active-low signal (such as USBP0#)

  • Page 5: Table Of Contents

    Online Support ......................19 Operating System Support ..................19 Design Specifications ....................20 Processor ........................23 System Memory ......................24 ® Intel 845GE Chipset....................26 1.8.1 Intel 845GE Graphics Subsystem ..............27 1.8.2 USB......................33 1.8.3 IDE Support ....................34 1.8.4 Real-Time Clock, CMOS SRAM, and Battery..........35 I/O Controller ......................35 1.9.1 Serial Port ....................35...
  • Page 6 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification DMA Channels ......................55 PCI Configuration Space Map ..................55 Interrupts ........................56 PCI Interrupt Routing Map ..................57 Connectors .........................59 2.8.1 Back Panel Connectors................60 2.8.2 Internal I/O Connectors ................61 2.8.3 External I/O Connectors ................69 Jumper Blocks......................72 2.9.1...
  • Page 7 Contents ® Fast Booting Systems with Intel Rapid BIOS Boot ............93 3.9.1 Peripheral Selection and Configuration ............93 3.9.2 Intel Rapid BIOS Boot ..................93 3.10 BIOS Security Features....................94 4 BIOS Setup Program Introduction.........................95 Maintenance Menu .....................96 Main Menu........................97 Advanced Menu......................98 4.4.1 PCI Configuration Submenu.................99...
  • Page 8 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Figures Desktop Board D845GEBV2 Components ..............14 Desktop Board D845GERG2 Components..............15 Desktop Board D845GERG2 Components (with Gigabit Ethernet LAN option) ..16 Block Diagram ......................17 Block Diagram of the Desktop Board D845GEBV2 with the Gigabit Ethernet LAN option........................18...
  • Page 9 Contents Fan Connector Function/Operation for Desktop Boards with a Hardware Monitoring and Fan Control ASIC ................49 System Memory Map....................53 I/O Map ........................54 DMA Channels ......................55 PCI Configuration Space Map ..................55 Interrupts ........................56 PCI Interrupt Routing Map ..................58 Front Panel Audio Connector ..................64 Auxiliary Line In Connector..................64 Rear Chassis Fan Connector ..................64 ATAPI CD-ROM Connector ..................64...
  • Page 10 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Chipset Configuration Submenu ................110 Fan Control Configuration Submenu ................112 Security Menu ......................113 Power Menu ......................114 ACPI Submenu......................114 Boot Menu ........................115 Boot Device Priority Submenu ..................116 Hard Disk Drives Submenu ..................117 Removable Devices Submenu..................117 ATAPI CD-ROM Drives Submenu ................118...

  • Page 11: Product Description

    1.13 Hardware Management Subsystem................42 1.14 Power Management ....................44 1.1 Board Differences ® This TPS describes these Intel Desktop Boards: D845GEBV2 and D845GERG2. The Desktop Boards are identical with the exception of the items listed in Table 1. Table 1. Summary of Board Differences •...

  • Page 12: Overview

    DIMMs based on 512 Mbit technology for a maximum onboard capacity of up to 2 GB, but this technology has not been validated (currently validated up to 1.0 GB) on this board. Please refer to the following Intel web sites.

  • Page 13: Manufacturing Options

    Table 3 describes the manufacturing options on the Desktop Boards D845GEBV2 and D845GERG2. 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. Manufacturing Options...

  • Page 14: Board Layouts

    Audio codec IDE connectors Front panel audio connector Speaker Auxiliary line-in connector Battery Intel 82562ET 10/100 Mbit/sec (PLC) device (Optional) S SCSI LED connector Rear chassis fan connector Chassis intrusion connector ATAPI CD-ROM connector Front chassis fan connector Back panel connectors...

  • Page 15: Desktop Board D845Gerg2 Components

    Audio codec IDE connectors Front panel audio connector Speaker Auxiliary line-in connector Battery Intel 82562ET 10/100 Mbit/sec (PLC) device (Optional) S SCSI LED connector Rear chassis fan connector Chassis intrusion connector ATAPI CD-ROM connector Front chassis fan connector Back panel connectors...

  • Page 16: Desktop Board D845Gerg2 Components (With Gigabit Ethernet Lan Option)

    • In Figure 3, the auxiliary line in connector (callout “C”) has been moved • In Figure 3, callout “D” highlights the Intel 82540EM Gigabit Ethernet LAN Controller OM15117 Audio codec IDE connectors Front panel audio connector...

  • Page 17: Block Diagrams

    4 Mbit Interface Graphics and I/O Controller Hub Firmware Hub Memory Controller (ICH4) (FWH) 4X AGP Hub (GMCH) Connector (1.5 V only) Intel 845GE Chipset Physical Display Layer Port Interface Connector Interface (Optional) (Optional) Memory Bus DIMM Banks (2) SMBus...

  • Page 18: Block Diagram Of The Desktop Board D845Gebv2 With The Gigabit Ethernet Lan Option

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Figure 5 is a block diagram of the major functional areas of the Desktop Board D845GEBV2 with the Gigabit Ethernet LAN option. See Figure 7 on page 33 for USB port routing. Back Panel/...

  • Page 19: Online Support

    Product Description 1.3 Online Support To find information about… Visit this World Wide Web site: Intel Desktop Boards D845GEBV2 and http://www.intel.com/design/motherbd D845GERG2 under “Desktop Board Products” or “Desktop Board Support” http://support.intel.com/support/motherboards/desktop Available configurations for the Desktop http://developer.intel.com/design/motherbd/bv2/bv2_available.htm Board D845GEBV2 Available configurations for the Desktop http://developer.intel.com/design/motherbd/rg2/rg2_available.htm...

  • Page 20: Design Specifications

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 1.5 Design Specifications Table 4 lists the specifications applicable to the Desktop Boards D845GEBV2 and D845GERG2. Table 4. Specifications Reference Specification Version, Revision Date, The information is Name Title and Ownership available from…...
  • Page 21 Revision 1.1, http://www.pcisig.com/ Management Interface December 18, 1998, specifications Specification PCI Special Interest Group. Plug and Plug and Play BIOS Version 1.0a, http://www.microsoft.com/ Play Specification May 5, 1994, hwdev/tech/PnP/ Compaq Computer Corporation, default.asp Phoenix Technologies Limited, and Intel Corporation. continued...
  • Page 22 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 4. Specifications (continued) Reference Specification Version, Revision Date The information is Name Title and Ownership available from… Preboot Execution Version 2.1, ftp://download.intel.com/ial/ Environment September 20, 1999, wfm/pxespec.pdf Intel Corporation. SFX/SFX12V Power Version 2.0, http://www.formfactors.org/...

  • Page 23: Processor

    CAUTION Use only the processors listed below. Use of unsupported processors can damage the board, the processor, and the power supply. See Intel’s World Wide Web site for the most up-to-date list of supported processors for these boards. The board provides an mPGA478 processor socket. Table 5 lists the supported processors. All supported onboard memory can be cached.

  • Page 24: System Memory

    2 GB, but this technology has not been validated (currently validated up to 1.0 GB) on this board. Please refer to the following Intel web sites for the latest lists of tested memory: For the Desktop Board D845GEBV2: http://developer.intel.com/design/motherbd/bv2/bv2_mem.htm...

  • Page 25: Supported Ddr Dimm Configurations

    Product Description Table 6 lists the supported DDR DIMM configurations. Table 6. Supported DDR DIMM Configurations DIMM Configuration DDR SDRAM DDR SDRAM Organization Number of DDR Capacity (Note 1) Density Front-side/Back-side SDRAM Devices 64 MB 64 Mbit 8 M x 8/empty 64 MB 128 Mbit 8 M x 16/empty...

  • Page 26: Intel ® 845Ge Chipset

    1.8 Intel ® 845GE Chipset The Intel 845GE chipset consists of the following devices: • Intel 82845GE Graphics and Memory Controller Hub (GMCH) with Accelerated Hub Architecture (AHA) bus • Intel 82801DB I/O Controller Hub (ICH4) with AHA bus •...

  • Page 27: Intel 845Ge Graphics Subsystem

    The Intel 845GE chipset contains two separate, mutually exclusive graphics options. Either the Intel Extreme Graphics controller (contained within the 82845GE GMCH) is used, or an AGP add-in card can be used. When an AGP add-in card is installed, the Intel Extreme Graphics controller is disabled.

  • Page 28: Direct Draw Supported Modes

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 8 lists the Direct Draw supported modes. Table 8. Direct Draw Supported Modes Resolution Color Palette Refresh Frequency (Hz) Notes 256 colors 320 x 200 64 K colors 16 M colors 256 colors...

  • Page 29: Video Bios Video Modes Supported For Analog Crts

    Product Description Table 9 lists the video BIOS video modes supported by the graphics subsystem. Table 9. Video BIOS Video Modes Supported for Analog CRTs Available Refresh Resolution Color Palette Frequencies (Hz) Notes 16 colors 320 x 200 T, G, B 256 colors G, B 16 colors...

  • Page 30: Supported Configuration Modes

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 10 lists the supported configuration modes of the graphics subsystem. Table 10. Supported Configuration Modes Available Refresh Supported bpp Configuration Mode Resolution Frequencies (Hz) (see Table 11 for more information) 640 x 480...

  • Page 31: Details Of Bpp Configuration Modes

    1.8.1.3 Zone Rendering Technology (ZRT) The Intel Extreme Graphics Controller supports Zone Rendering Technology (ZRT). ZRT is a process by which the screen is divided into several zones. Each zone is completely cached and rendered on chip before being written to the frame buffer. The benefits of ZRT include the following: •...
  • Page 32 GMCH is capable of driving a 24-bit 330 MHz pixel clock. When an AGP add- in card is used, the Intel Extreme Graphics controller is disabled and the AGP connector operates in AGP mode. When an ADD card is detected, the Intel Extreme Graphics controller is enabled and the AGP connector is configured for DVO mode.

  • Page 33: Usb

    Product Description 1.8.2 USB The Desktop Boards 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. The ICH4 provides the USB controller for all ports, as shown in Figure 7.

  • Page 34: Ide Support

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 1.8.3 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.

  • Page 35: Real-Time Clock, Cmos Sram, And Battery

    Product Description 1.8.4 Real-Time Clock, CMOS SRAM, and Battery A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the battery.

  • Page 36: Diskette Drive Controller

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 1.9.3 Diskette Drive Controller The I/O controller supports one diskette drive. Use the BIOS Setup program to configure the diskette drive interface. For information about Refer to The location of the diskette drive connector on the D845GERG2 board...

  • Page 37: Audio Subsystem

    Product Description 1.10 Audio Subsystem The audio subsystem consists of the following devices: • Intel 82801DB I/O Controller Hub (ICH4) • Analog Devices AD1981B audio codec The audio subsystem includes these features: • Split digital/analog architecture for improved S/N (signal-to-noise) ratio: ≥ 85 dB •...

  • Page 38: Audio Connectors

    Figure 13, page 62 The signal names of the ATAPI CD-ROM connector Table 28, page 64 1.10.2 Audio Subsystem Software Audio software and drivers are available from Intel’s World Wide Web site. For information about Refer to Obtaining audio software and drivers...

  • Page 39: Lan Subsystem (Optional)

    ® 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: •...

  • Page 40: Lan Subsystem Software

    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 845GE chipset. Figure 9 shows the signal interface between the riser and the ICH4. Communication and AC ’97 Interface...
  • Page 41 S/P-DIF digital connections. For information about Refer to CNR audio upgrade cards http://developer.intel.com/technology/cnr/ INTEGRATOR’S NOTES • If you install a CNR card that cannot support a multichannel audio upgrade, the Desktop Boards’ integrated audio codec will be disabled. This only applies to D845GEBV2 and D845GERG2 boards that have both the onboard audio subsystem and a CNR.

  • Page 42: Hardware Management Subsystem

    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.

  • Page 43: Thermal Monitoring

    Product Description For information about Refer to The location of the fan connectors and sensors for thermal monitoring Figure 10, page 43 1.13.1.3 Thermal Monitoring Figure 10 shows the location of the sensors and fan connectors. OM15025 Item Description Thermal diode, located on processor die Ambient temperature sensor, internal to both hardware monitoring ASIC options (Note) Remote ambient temperature sensor...

  • Page 44: Fan Monitoring

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 1.13.2 Fan Monitoring ® ® ® Fan monitoring can be implemented using Intel Active Monitor, Intel LANDesk Client Manager, or third-party software. The level of monitoring and control is dependent on the hardware monitoring ASIC used with the Desktop Board.

  • Page 45: Acpi

    Product Description 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 D845GEBV2 and D845GERG2 requires an operating system that provides full ACPI support. ACPI features include: •...

  • Page 46: Power States And Targeted System Power

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 1.14.1.1 System States and Power States Under ACPI, the operating system directs all system and device power state transitions. The operating system puts devices in and out of low-power states based on user preferences and knowledge of how devices are being used by applications.

  • Page 47: Hardware Support

    Product Description 1.14.1.2 Wake-up Devices and Events Table 16 lists the devices or specific events that can wake the computer from specific states. Table 16. Wake-up Devices and Events These devices/events can wake up the computer… …from this state S1, S3, S4, S5 (Note) S1, S3, S4, S5 Modem (back panel Serial Port A)

  • Page 48: Fan Connector Function/Operation For Desktop Boards With A Hardware Monitoring Asic

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Resume on Ring enables telephony devices to access the computer when it is in a 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 from USB technologies from an ACPI state requires an operating system that provides full ACPI support.

  • Page 49: Fan Connector Function/Operation For Desktop Boards With A Hardware

    Product Description Table 18. Fan Connector Function/Operation for Desktop Boards with a Hardware Monitoring and Fan Control ASIC Connector Description • +12 V DC connection for a processor fan or active fan heatsink. Processor fan • Fan is on in the S0 or S1 state. Fan is off when the system is off or in the S3, S4, or S5 state.
  • Page 50 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 1.14.2.4 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 PC technology can damage the power supply.

  • Page 51: Location Of The Standby Power Indicator Led On The D845Gebv2 Board

    Product Description 1.14.2.5 +5 V Standby Power Indicator LED The +5 V standby power indicator LED shows that power is still present even when the computer appears to be off. Figure 11 shows the location of the standby power indicator LED on the D845GEBV2 board.
  • Page 52 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 1.14.2.7 Wake from USB USB bus activity wakes the computer from ACPI S1 or S3 states. ✏ NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB.

  • Page 53: Technical Reference

    2 Technical Reference What This Chapter Contains Introduction.........................53 Memory Map ......................53 Fixed I/O Map......................54 DMA Channels ......................55 PCI Configuration Space Map ..................55 Interrupts ........................56 PCI Interrupt Routing Map ..................57 Connectors .........................59 Jumper Blocks......................72 2.10 Mechanical Considerations..................74 2.11 Electrical Considerations ....................78 2.12 Thermal Considerations....................81 2.13 Reliability ........................84 2.14 Environmental ......................84...

  • Page 54: Fixed I/O Map

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 2.3 Fixed I/O Map Table 20. I/O Map Address (hex) Size Description 0000 - 00FF 256 bytes Used by the Desktop Board D845GEBV2/D845GERG2. Refer to the ICH4 data sheet for dynamic addressing information.

  • Page 55: Dma Channels

    PCI bus connector 5 (Note 2) (Note 1) PCI bus connector 6 Notes: 1. Bus number = 01 when the Intel Extreme Graphics controller is used. Bus number = 02 when an AGP add- in card is used. 2. Desktop Board D845GEBV2 only...

  • Page 56: Interrupts

    Intel Desktop Board D845GEBV2/D845GERG2 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.

  • Page 57: Pci Interrupt Routing Map

    Technical Reference 2.7 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 PCI bus. In most cases, the small amount of latency added by interrupt sharing does not affect the operation or throughput of the devices.

  • Page 58: Pci Interrupt Routing Map

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 24. PCI Interrupt Routing Map ICH4 PIRQ Signal Name PCI Interrupt Source PIRQA PIRQB PIRQC PIRQD PIRQE PIRQF PIRQG PIRQH AGP connector INTA INTB ICH4 USB UHCI controller 1 INTA SMBus controller...

  • Page 59: Connectors

    Technical Reference 2.8 Connectors CAUTION Only the back panel USB, front panel USB, VGA, and PS/2 connectors of the Desktop Boards D845GEBV2 and D845GERG2 have overcurrent protection. The Desktop Boards’ internal connectors are not overcurrent protected and should connect only to devices inside the computer’s chassis, such as fans and internal peripherals.

  • Page 60: Back Panel Connectors

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 2.8.1 Back Panel Connectors Figure 12 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.

  • Page 61: Internal I/O Connectors

    Technical Reference ✏ NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only. Poor audio quality occurs if passive (non-amplified) speakers are connected to this output. 2.8.2 Internal I/O Connectors The internal I/O connectors are divided into the following functional groups: •...

  • Page 62: Audio, Power, And Hardware Control Connectors

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 2.8.2.2 Audio, Power, and Hardware Control Connectors Figure 13 shows the location of the audio, power, and hardware control connectors. OM13578 Item Description For more information see: Front panel audio Table 25 Auxiliary line in, ATAPI style (white)

  • Page 63: Audio, Power, And Hardware Control Connectors On The Desktop Board D845Gerg2 With The Gigabit Ethernet Lan Option

    Technical Reference Figure 14 shows the location of the audio, power, and hardware control connectors on the Desktop Board D845GERG2 with the Gigabit Ethernet LAN option. OM15118 Item Description For more information see: Front panel audio Table 25 Auxiliary line in, ATAPI style (white) Table 26 Rear chassis fan Table 27...

  • Page 64: Front Panel Audio Connector

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 25. Front Panel Audio Connector Signal Name Signal Name MIC_IN Ground MIC_BIAS +5 V RIGHT_OUT RIGHT_IN Ground LEFT_OUT LEFT_IN INTEGRATOR’S NOTE The front panel audio connector is alternately used as a jumper block for routing audio signals.

  • Page 65: Atx12V Power Connector

    Technical Reference INTEGRATOR’S NOTES • Use only ATX12V-compliant power supplies with these boards. ATX12V power supplies have an additional power lead that provides required supplemental power for the processor. Always connect the 20-pin and 4-pin leads of ATX12V power supplies to the corresponding connectors on the board, otherwise the board will not boot.

  • Page 66: Main Power Connector

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 31. Main Power Connector Signal Name Signal Name +3.3 V +3.3 V +3.3 V -12 V Ground Ground +5 V PS-ON# (power supply remote on/off) Ground Ground +5 V Ground Ground Ground...

  • Page 67: D845Gebv2 Add-In Board And Peripheral Interface Connectors

    Technical Reference 2.8.2.3 Add-in Board and Peripheral Interface Connectors Figure 15 shows the location of the add-in board connector and peripheral connectors for the Desktop Board D845GEBV2. Note the following considerations for the PCI bus connectors (for both Desktop Boards): •...

  • Page 68: D845Gerg2 Add-In Board And Peripheral Interface Connectors

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification OM15022 Item Description Item Description CNR (optional) Diskette drive PCI bus connector 3 Primary IDE PCI bus connector 2 Secondary IDE PCI bus connector 1 SCSI LED AGP connector Figure 16. D845GERG2 Add-in Board and Peripheral Interface Connectors INTEGRATOR’S NOTES...

  • Page 69: External I/O Connectors

    Technical Reference 2.8.3 External I/O Connectors Figure 17 shows the locations of the external I/O connectors. OM13580 Item Description For more information see: Auxiliary front panel power/sleep/message-waiting LED Table 39 Front panel Table 36 Front panel USB Table 35 Figure 17. External I/O Connectors Table 35.

  • Page 70: Front Panel Connector

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 2.8.3.1 Front Panel Connector This section describes the functions of the front panel connector. Table 36 lists the signal names of the front panel connector. Table 36. Front Panel Connector Signal In/Out Description...

  • Page 71: States For A One-Color Power Led

    Technical Reference 2.8.3.1.3 Power/Sleep/Message Waiting LED Connector Pins 2 and 4 can be connected to a one- or two-color LED. Table 37 shows the possible states for a one-color LED. Table 38 shows the possible states for a two-color LED. Table 37.

  • Page 72: Jumper Blocks

    Intel Desktop Board D845GEBV2/D845GERG2 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.

  • Page 73: Bios Setup Configuration Jumper Block

    Technical Reference Table 40 describes the two configurations of this connector/jumper block. CAUTION Do not place jumpers on this block in any configuration other than the one described in Table 40. Other jumper configurations are not supported and could damage the Desktop Board. Table 40.

  • Page 74: Mechanical Considerations

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 2.10 Mechanical Considerations 2.10.1 D845GEBV2 Form Factor The Desktop Board D845GEBV2 is designed to fit into an ATX-form-factor chassis. Figure 19 illustrates the mechanical form factor for the Desktop Board D845GEBV2. Dimensions are given in inches [millimeters].

  • Page 75: D845Gerg2 Form Factor

    Technical Reference 2.10.2 D845GERG2 Form Factor The Desktop Board D845GERG2 is designed to fit into either a microATX or an ATX-form-factor chassis. Figure 20 illustrates the mechanical form factor for the Desktop Board D845GERG2. Dimensions are given in inches [millimeters]. The outer dimensions are 9.60 inches by 8.20 inches [243.84 millimeters by 208.28 millimeters].

  • Page 76: I/O Shield

    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. 6.390 [162.300] 0.063 0.005 [1.600...

  • Page 77: I/O Shield Dimensions (For Desktop Boards With No Lan Subsystem)

    Technical Reference 6.390 [162.300] 0.063 0.005 [1.600 0.120] 0.787 0.010 TYP [20 0.254] 3x Dia 0.039 [1.000] 3x Dia 0.330 [8.380] 8X R0.5 MIN 0.884 [22.450] 0.519 [13.190] 0.276 [7.012] 0.027 0.000 [0.690] [0.000] 0.465 0.465 [11.810] [11.811] 0.472 0.567 [12.000] [14.400] Pictorial...

  • Page 78: Electrical Considerations

    2.11.1 Power Consumption Table 42 lists voltage and current measurements for a computer that contains the Desktop Board D845GEBV2/D845GERG2 and the following: • 2.80 GHz Intel Pentium 4 processor with a 512 KB cache • 64 MB AGP add-in card •...

  • Page 79: Standby Current Requirements

    Technical Reference 2.11.3 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 D845GEBV2 and D845GERG2 may lose register settings stored in memory, etc. Calculate the standby current requirements using the steps described below.

  • Page 80: Fan Connector Current Capability

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification ✏ NOTE IBM PS/2 Port Specification (Sept 1991) states: • 275 mA for keyboard • 70 mA for the mouse (nonwake-enable device) PCI/AGP requirements are calculated by totaling the following: • One wake-enabled device @ 375 mA, plus •...

  • Page 81: Power Supply Considerations

    The ATX form factor specification 2.12 Thermal Considerations CAUTION The use of an Intel Pentium 4 processor operating above 2.80 GHz with this Intel desktop board requires the following: • A chassis with appropriate airflow to ensure proper cooling of the components on the board •...

  • Page 82: Localized High Temperature Zones

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification CAUTION Ensure that the ambient temperature does not exceed the Desktop Board’s maximum operating temperature. Failure to do so could cause components to exceed their maximum case temperature and malfunction. For information about the maximum operating temperature, see the environmental specifications in Section 2.14.

  • Page 83: Thermal Considerations For Components

    For processor case temperature, see processor datasheets and processor specification updates Intel 82845GE GMCH C (under bias) Intel 82801DB ICH4 C (under bias) For information about Refer to Intel Pentium 4 processor datasheets and specification updates Section 1.3, page 19...

  • Page 84: Reliability

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 2.13 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 repair rates and spare parts requirements.

  • Page 85: Regulatory Compliance

    Technical Reference 2.15 Regulatory Compliance This section describes the Desktop Boards’ compliance with U.S. and international safety and electromagnetic compatibility (EMC) regulations. 2.15.1 Safety Regulations Table 47 lists the safety regulations the Desktop Boards D845GEBV2 and D845GERG2 comply with when correctly installed in a compatible host system. Table 47.

  • Page 86: Product Certification Markings (Board Level)

    • 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 D845GEBV2 and D845GERG2 model designation (solder side).

  • Page 87: Overview Of Bios Features

    3.10 BIOS Security Features....................94 3.1 Introduction The Desktop Boards D845GEBV2 and D845GERG2 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.

  • Page 88: Resource Configuration

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 3.3 Resource Configuration 3.3.1 PCI Autoconfiguration The BIOS can automatically configure PCI devices. PCI devices may be onboard or add-in cards. Autoconfiguration lets a user insert or remove PCI cards without having to configure the system.

  • Page 89: System Management Bios (Smbios)

    Overview of BIOS Features 3.4 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 and its components. Using SMBIOS, a system administrator can obtain the system types, capabilities, operational status, and installation dates for system components.

  • Page 90: Bios Updates

    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: •...

  • Page 91: 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.

  • Page 92: Boot Options

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 3.8 Boot Options In the BIOS Setup program, the user can choose to boot from a diskette drive, hard drives, CD-ROM, or the network. The default setting is for the diskette drive to be the first boot device, the hard drive second, and the ATAPI CD-ROM third.

  • Page 93: Fast Booting Systems With Intel ® Rapid Bios Boot

    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.

  • Page 94: Bios Security Features

    Intel Desktop Board D845GEBV2/D845GERG2 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: •...

  • Page 95: Bios Setup Program

    4 BIOS Setup Program What This Chapter Contains Introduction.........................95 Maintenance Menu .....................96 Main Menu........................97 Advanced Menu......................98 Security Menu ......................113 Power Menu ......................114 Boot Menu ........................115 Exit Menu .........................118 4.1 Introduction The BIOS Setup program can be used to view and change the BIOS settings for the computer. The BIOS Setup program is accessed by pressing the <F2>...

  • Page 96: Maintenance Menu

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 52 lists the function keys available for menu screens. Table 52. BIOS Setup Program Function Keys BIOS Setup Program Function Key Description <←> or <→> Selects a different menu screen (Moves the cursor left or right) <↑>...

  • Page 97: Main Menu

    BIOS Setup Program 4.3 Main Menu To access this menu, select Main on the menu bar at the top of the screen. Maintenance Advanced Security Power Boot Exit Main Table 54 describes the Main menu. This menu reports processor and memory information and is for configuring the system date and system time.

  • Page 98: Advanced Menu

    Intel Desktop Board D845GEBV2/D845GERG2 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 Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration...

  • Page 99: Pci Configuration Submenu

    BIOS Setup Program 4.4.1 PCI Configuration Submenu To access this submenu, select Advanced on the menu bar and then PCI Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration...

  • Page 100: Boot Configuration Submenu

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 56. PCI Configuration Submenu (continued) Feature Options Description • Auto (default) PCI Slot5 IRQ Priority Allows selection of IRQ priority for PCI bus connector 5. • 5 (Note 1, Note 2) • 9 •...

  • Page 101: Peripheral Configuration Submenu

    BIOS Setup Program 4.4.3 Peripheral Configuration Submenu To access this submenu, select Advanced on the menu bar and then Peripheral Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration...
  • Page 102 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 58. Peripheral Configuration Submenu (continued) Feature Options Description • 378 (default) Base I/O address Specifies the base I/O address for the parallel port. (This feature is present • 278 only when Parallel Port is set to Enabled) •...

  • Page 103: Ide Configuration Submenu

    BIOS Setup Program 4.4.4 IDE Configuration Submenu To access this submenu, select Advanced on the menu bar and then IDE Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration...

  • Page 104: Primary/Secondary Ide Master/Slave Submenus

    Intel Desktop Board D845GEBV2/D845GERG2 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 Security Power Boot Exit...
  • Page 105 BIOS Setup Program Table 60. Primary/Secondary IDE Master/Slave Submenus (continued) Feature Options Description • Auto (default) Specifies the DMA mode for the drive. DMA Mode • SWDMA0 Auto = Auto-detected • SWDMA1 SWDMAn = Single Word DMAn • SWDMA2 SWDMAn = Multi Word DMAn •...

  • Page 106: Diskette Configuration Submenu

    Intel Desktop Board D845GEBV2/D845GERG2 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 Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration...

  • Page 107: Event Log Configuration Submenu

    BIOS Setup Program 4.4.6 Event Log Configuration Submenu To access this menu, select Advanced on the menu bar and then Event Log Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration...

  • Page 108: Video Configuration Submenu

    Intel Desktop Board D845GEBV2/D845GERG2 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 Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration...

  • Page 109: Usb Configuration Submenu

    BIOS Setup Program 4.4.8 USB Configuration Submenu To access this menu, select Advanced on the menu bar and then USB Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration...

  • Page 110: Chipset Configuration Submenu

    Intel Desktop Board D845GEBV2/D845GERG2 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 Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration...
  • Page 111 BIOS Setup Program Table 65. Primary/Secondary IDE Master/Slave Submenus (continued) Feature Options Description • 8 SDRAM RAS# Active to Corresponds to tRAS. Precharge • 7 • 6 (default) • 5 • 2.0 (default) SDRAM CAS# Latency Selects the number of clock cycles required to address a column in memory.

  • Page 112: Fan Control Configuration Submenu

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification 4.4.10 Fan Control Configuration Submenu To access this menu, select Advanced on the menu bar and then Fan Control Configuration. Maintenance Main Security Power Boot Exit Advanced PCI Configuration Boot Configuration Peripheral Configuration...

  • Page 113: Security Menu

    BIOS Setup Program 4.5 Security Menu To access this menu, select Security from the menu bar at the top of the screen. Maintenance Main Advanced Power Boot Exit Security The menu represented by Table 67 is for setting passwords and security features. Table 67.

  • Page 114: Power Menu

    Intel Desktop Board D845GEBV2/D845GERG2 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 Advanced Security Boot Exit Power ACPI The menu represented in Table 68 is for setting the power management features.

  • Page 115: Boot Menu

    PXE Boot to LAN Disables/enables PXE boot to LAN. • Enabled Note: When set to Enabled, you must reboot for the Intel Boot Agent device to be available in the Boot Device menu. • Disabled USB Boot Disables/enables booting to USB boot devices.

  • Page 116: Boot Device Priority Submenu

    The default settings for the first through fourth boot devices are, respectively: • Removable Dev. • Hard Drive • ATAPI CD-ROM • Intel Boot Agent Note: The boot device identifier for Intel Boot Agent (IBA) may vary depending on the BIOS release.

  • Page 117: Hard Disk Drives Submenu

    BIOS Setup Program 4.7.2 Hard Disk Drives Submenu To access this menu, select Boot on the menu bar and then Hard Disk Drives. Maintenance Main Advanced Security Power Exit Boot Boot Device Priority Hard Disk Drives Removable Devices ATAPI CD-ROM Drives The submenu represented in Table 72 is for setting hard disk drive priority.

  • Page 118: Atapi Cd-Rom Drives Submenu

    Intel Desktop Board D845GEBV2/D845GERG2 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 Advanced Security Power Exit Boot Boot Device Priority Hard Disk Drives...

  • Page 119: Error Messages And Beep Codes

    5 Error Messages and Beep Codes What This Chapter Contains BIOS Error Messages....................119 Port 80h POST Codes....................121 Bus Initialization Checkpoints ...................125 Speaker ........................126 BIOS Beep Codes ....................126 5.1 BIOS Error Messages Table 76 lists the error messages and provides a brief description of each. Table 76.
  • Page 120 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 76. BIOS Error Messages (continued) Error Message Explanation Checking NVRAM..NVRAM is being checked to see if it is valid. Update OK! NVRAM was invalid and has been updated. Updated Failed NVRAM was invalid but was unable to be updated.

  • Page 121: Port 80H Post Codes

    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. Initialize extra (Intel Recovery) Module. Initialize floppy drive. Try to boot from floppy. If reading of boot sector is successful, give control to boot sector code.

  • Page 122: Runtime Code Uncompressed In F000 Shadow Ram

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 79. Runtime Code Uncompressed in F000 Shadow RAM Code Description of POST Operation NMI is Disabled. To check soft reset/power-on. BIOS stack set. Going to disable cache if any. POST code to be uncompressed.
  • Page 123 Error Messages and Beep Codes Table 79. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation To prepare the descriptor tables. To enter in virtual mode for memory test. To enable interrupts for diagnostics mode. To initialize data to check memory wrap around at 0:0. Data initialized.
  • Page 124 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 79. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation Lock-key checking over. To check for memory size mismatch with CMOS. Memory size check done. To display soft error and check for password or bypass setup.

  • Page 125: Bus Initialization Checkpoints

    Error Messages and Beep Codes Table 79. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation Uncompress SMBIOS module and init SMBIOS code and form the runtime SMBIOS image in shadow. Going to copy any code to specific area. Copying of code to specific area done.

  • Page 126: Speaker

    Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification Table 82 describes the lower nibble of the high byte and indicates the bus on which the routines are being executed. Table 82. Lower Nibble High Byte Functions Value Description Generic DIM (Device Initialization Manager)

  • Page 127: Beep Codes

    Error Messages and Beep Codes If POST completes normally, the BIOS issues one short beep before passing control to the operating system. Table 83. Beep Codes Beep Description Refresh failure Parity cannot be reset First 64 KB memory failure Timer not operational Not used 8042 GateA20 cannot be toggled Exception interrupt error...
  • Page 128 Intel Desktop Board D845GEBV2/D845GERG2 Technical Product Specification...

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