Intel D845GBV Product Supplement Document
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Intel D845GBV Product Supplement Document

Intel D845GBV Product Supplement Document

Product supplement document for the intel desktop board d845gbv
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Download this manual See also: Using Manual
Product Supplement Document
for the
Intel
A companion document to the Technical Product
Specification for Intel
using the Intel
®
®
Intel
Desktop Boards using the Intel
845G Chipset 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 Specification Update for Intel Desktop Boards using the Intel 845G Chipset.
Desktop Board D845GBV
®
®
845G Chipset
®
Desktop Boards
April 2002
Order Number: A85839-001

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Summary of Contents for Intel D845GBV

  • Page 1 Desktop Boards using the Intel 845G Chipset 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 Specification Update for Intel Desktop Boards using the Intel 845G Chipset.

  • 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

    Intel Desktop Board D845GBV. Intended Audience The document is intended to provide detailed, technical information about the Intel Desktop Board D845GBV and its components to the vendors, system integrators, and other engineers and technicians who need this level of information. It is specifically not intended for general audiences.
  • Page 4 Product Supplement Document for the Intel Desktop Board D845GBV INTEGRATOR’S NOTES Integrator’s notes are used to call attention to information that may be useful to system integrators. CAUTION Cautions are included to help you avoid damaging hardware or losing data.

  • Page 5: Table Of Contents

    3.1.2 EMC Regulations ..................35 3.1.3 Product Certification Markings (Board Level) ..........36 Figures Desktop Board D845GBV Components..............10 Back Panel Connectors ....................13 Audio, Power, and Hardware Control Connectors ............15 Add-in Board and Peripheral Interface Connectors.............19 External I/O Connectors .....................21 Location of the Jumper Blocks..................24...
  • Page 6 Product Supplement Document for the Intel Desktop Board D845GBV Desktop Board Dimensions ..................27 Location of the Standby Power Indicator LED ............31 Localized High Temperature Zones................33 Thermal Monitoring.....................34 Tables Feature Summary......................7 Cross Reference of Footnotes from the Technical Product Specification..... 9 Supported Processors ....................11...

  • Page 7: Overview

    DIMMs based on 512 Mbit technology for a maximum onboard capacity of up to 2 GB, but this technology has not been validated. Please refer to the following Intel web site for the latest list of tested memory: http://developer.intel.com/design/motherbd/bv/bv_mem.htm...

  • Page 8: Online Support

    Product Supplement Document for the Intel Desktop Board D845GBV Table 1. Feature Summary (continued) • Voltage sense to detect out of range power supply voltages Hardware Monitor Subsystem • Thermal sense to detect out of range thermal values • Two fan sense inputs used to monitor fan activity •...

  • Page 9: Footnote Cross Reference

    Overview 1.3 Footnote Cross Reference This document is a companion document to the Technical Product Specification for Intel Desktop Boards using the Intel 845G Chipset. The Technical Product Specification (order number: A81229-001) contains footnotes that refer you to this document for information specific to this Desktop Board.

  • Page 10: Board Layout

    Product Supplement Document for the Intel Desktop Board D845GBV 1.4 Board Layout Figure 1 shows the location of the major components on the Desktop Board D845GBV. OM13576 Audio codec Speaker Front panel audio connector Battery Auxiliary line-in connector SCSI LED connector...

  • Page 11: Product-Specific Features

    Board, the processor, and the power supply. See the Specification Update for Intel Desktop Boards using the Intel 845G Chipset for the most up-to-date list of supported processors for these boards. The Desktop Boards provide a µPGA478 processor socket. Table 3 lists the supported processors.

  • Page 12: Connectors

    Product Supplement Document for the Intel Desktop Board D845GBV 2.2 Connectors CAUTION Only the back panel USB, front panel USB, VGA, and PS/2 connectors 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. Do not use these connectors to power devices external to the computer’s chassis.

  • Page 13: Back Panel Connectors

    Product-Specific Features 2.2.1 Back Panel Connectors Figure 2 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. OM13577 Item Description Color PS/2 mouse port Green PS/2 keyboard port...

  • Page 14: Internal I/O Connectors

    Product Supplement Document for the Intel Desktop Board D845GBV INTEGRATOR’S 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.

  • Page 15: Audio, Power, And Hardware Control Connectors

    Product-Specific Features 2.2.2.2 Audio, Power, and Hardware Control Connectors Figure 3 shows the location of the audio, power, and hardware control connectors. OM13578 Item Description For more information see: Front panel audio Table 4 Auxiliary line in, ATAPI style (white) Table 5 Rear chassis fan Table 6...

  • Page 16: Front Panel Audio Connector

    Product Supplement Document for the Intel Desktop Board D845GBV Table 4. 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 17: Atx12V Power Connector

    INTEGRATOR’S NOTES • Use only ATX12V-compliant power supplies with the Desktop Board D845GBV. 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 Desktop Board, otherwise the Desktop Board will not boot.

  • Page 18: Main Power Connector

    Product Supplement Document for the Intel Desktop Board D845GBV Table 10. 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...

  • Page 19: Add-In Board And Peripheral Interface Connectors

    Add-in Board and Peripheral Interface Connectors Figure 4 shows the location of the add-in board connector and peripheral connectors for the Desktop Board D845GBV. Note the following considerations for the PCI bus connectors: • All of the PCI bus connectors are bus master capable.

  • Page 20: Scsi Led Connector

    Product Supplement Document for the Intel Desktop Board D845GBV INTEGRATOR’S NOTE The AGP connector is keyed for 1.5 V AGP cards only. Do not attempt to install a legacy 3.3 V AGP card. The AGP connector is not mechanically compatible with legacy 3.3 V AGP cards.

  • Page 21: External I/O Connectors

    Product-Specific Features 2.2.3 External I/O Connectors Figure 5 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 18 Front panel Table 15 Front panel USB Table 14 Figure 5. External I/O Connectors Table 14.

  • Page 22: Front Panel Connector

    Product Supplement Document for the Intel Desktop Board D845GBV 2.2.3.1 Front Panel Connector This section describes the functions of the front panel connector. Table 15 lists the signal names of the front panel connector. Table 15. Front Panel Connector Signal...

  • Page 23: States For A One-Color Power Led

    SW_ON# pin to ground for at least 50 ms to signal the power supply to switch on or off. (The time requirement is due to internal debounce circuitry on the Desktop Board D845GBV.) At least two seconds must pass before the power supply will recognize another on/off signal.

  • Page 24: Jumper Blocks

    Product Supplement Document for the Intel Desktop Board D845GBV 2.3 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 25: Bios Setup Configuration Jumper Block

    Product-Specific Features Table 19 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 19. Other jumper configurations are not supported and could damage the Desktop Board. Table 19.

  • Page 26: I/O Shield

    Product Supplement Document for the Intel Desktop Board D845GBV 2.4 I/O Shield The back panel I/O shield for the Desktop Board D845GBV must meet specific dimension and material requirements. Systems based on this Desktop Board need the back panel I/O shield to pass emissions (EMI) certification testing.

  • Page 27: Mechanical Considerations

    Product-Specific Features 2.5 Mechanical Considerations The Desktop Board D845GBV is designed to fit into an ATX-form-factor chassis. Figure 8 illustrates the mechanical form factor for the Desktop Board. Dimensions are given in inches [millimeters]. The outer dimensions are 12.00 inches by 8.20 inches [304.80 millimeters by 208.28 millimeters].

  • Page 28: Electrical Considerations

    0.45 A 2.6.2 Add-in Board Considerations The Desktop Board D845GBV is designed to provide 2 A (average) of +5 V current for each add- in board. For a fully loaded Desktop Board D845GBV (all six expansion slots filled), the total...

  • Page 29: Standby Current Requirements

    Calculate the standby current requirements using the steps described below. Power supplies used with the Desktop Board D845GBV must be able to provide enough standby current to support the Instantly Available PC (ACPI S3 sleep state) configuration as outlined in Table 22 below.

  • Page 30: Fan Connector Current Capability

    The other port may provide up to 7.5 mA (three nonwake-enabled devices.) during G1/S3 suspended operation. 2.6.4 Fan Connector Current Capability Table 23 lists the current capability of the fan connectors on the Desktop Board D845GBV. Table 23. Fan Connector Current Capability...

  • Page 31: Standby Power Indicator Led

    Product-Specific Features • The potential relation between 3.3 VDC and +5 VDC power rails (Section 4.2) • The current capability of the +5 VSB line (Section 4.2.1.2) • All timing parameters (Section 4.2.1.3) • All voltage tolerances (Section 4.2.2) 2.6.6 Standby Power Indicator LED The standby power indicator LED shows that power is still present even when the computer appears to be off.

  • Page 32: Reliability

    Procedure, TR-NWT-000332, Issue 4, September 1991. The MTBF prediction is used to estimate repair rates and spare parts requirements. The MTBF data is calculated from predicted data at 55 ºC. The Desktop Board D845GBV MTBF is 107,183.8933 hours. 2.8 Thermal Considerations 2.8.1 High Temperature Zones...

  • Page 33: Localized High Temperature Zones

    Intel 82801DB ICH4 Figure 10. Localized High Temperature Zones Table 24 provides maximum case temperatures for Desktop Board D845GBV components that are sensitive to thermal changes. The operating temperature, current load, or operating frequency could affect case temperatures. Maximum case temperatures are important when considering proper airflow to cool the Desktop Board D845GBV.

  • Page 34: Thermal Monitoring

    Product Supplement Document for the Intel Desktop Board D845GBV 2.8.2 Thermal Monitoring Figure 11 shows the location of the sensors and fan connectors. OM14555 Item Description Thermal diode, located on processor die Ambient temperature sensor, internal to both hardware monitoring ASIC options...

  • Page 35: Regulatory Compliance Information 3.1 Regulatory Compliance

    3 Regulatory Compliance Information 3.1 Regulatory Compliance This section describes the Desktop Boards’ compliance with U.S. and international safety and electromagnetic compatibility (EMC) regulations. 3.1.1 Safety Regulations Table 25 lists the safety regulations the Desktop Board complies with when correctly installed in a compatible host system.

  • Page 36: Product Certification Markings (Board Level)

    The Desktop Boards have the following product certification markings: • 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). •...

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