Intel D845GRG, D845GBV User Manual

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Intel® Desktop Boards

D845GRG and D845GBV

Product Guide

Order Number: A84615-001

Revision History

Revision

Revision History

Date

-001

First release of the Intel® Desktop Boards D845GRG and D845GBV

April 2002

 

Product Guide.

 

If an FCC declaration of conformity marking is present on the board, the following statement applies:

FCC Declaration of Conformity

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

For questions related to the EMC performance of this product, contact:

Intel Corporation

5200 N.E. Elam Young Parkway Hillsboro, OR 97124 1-800-628-8686

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment to an outlet on a circuit other than the one to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

Canadian Department of Communications Compliance Statement

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

Le présent appareil numerique német pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la classe B prescrites dans le Réglement sur le broullage radioélectrique édicté par le ministére des Communications du Canada.

Disclaimer

Information in this document is provided in connection with Intel® products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice.

Desktop Boards D845GRG and D845GBV may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request.

Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.

Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be obtained from Intel Corporation by going to the World Wide Web site at: http://www.intel.com/ or by calling 1-800-548-4725.

Intel, Pentium, and Celeron are registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.

Other names and brands may be claimed as the property of others.

Copyright © 2002, Intel Corporation. All rights reserved.

Contents

1 Desktop Board Features

 

Components.........................................................................................................................

9

Processor ............................................................................................................................

11

Main Memory ......................................................................................................................

12

Intel® 845G Chipset.............................................................................................................

12

Intel® 82845G Graphics Memory Controller Hub (GMCH) ..........................................

13

Intel® 82801DB I/O Controller Hub (ICH4)..................................................................

13

Firmware Hub (FWH) .................................................................................................

13

Input/Output (I/O) Controller................................................................................................

13

Graphics Subsystem ...........................................................................................................

14

Audio Subsystem ................................................................................................................

14

LAN Subsystem (Optional) ..................................................................................................

14

LAN Subsystem Software...........................................................................................

14

RJ-45 LAN Connector LEDs.......................................................................................

15

Hi-Speed USB 2.0 Support..................................................................................................

15

Enhanced IDE Interface ......................................................................................................

15

Expansion Slots...................................................................................................................

16

Accelerated Graphics Port (AGP) ...............................................................................

16

Communication and Networking Riser (CNR) (Optional) ............................................

16

BIOS ...................................................................................................................................

16

PCI Auto Configuration ...............................................................................................

16

IDE Auto Configuration ...............................................................................................

17

Security Passwords ....................................................................................................

17

Power Management Features .............................................................................................

17

ACPI...........................................................................................................................

17

Suspend to RAM (Instantly Available PC Technology) ...............................................

18

Hardware Management .......................................................................................................

19

Power Connectors ......................................................................................................

19

Fan Connectors ..........................................................................................................

19

Resume on Ring.........................................................................................................

19

Wake from USB..........................................................................................................

19

Wake from PS/2 Keyboard/Mouse..............................................................................

20

PME# Wakeup Support ..............................................................................................

20

Speaker...............................................................................................................................

20

Battery.................................................................................................................................

20

Real-Time Clock..................................................................................................................

20

iii

Intel Desktop Boards D845GRG and D845GBV Product Guide

2 Installing and Replacing Desktop Board Components

 

Before You Begin ................................................................................................................

21

Installing the I/O Shield .......................................................................................................

22

Installing and Removing the Desktop Board........................................................................

23

Installing and Removing a Processor ..................................................................................

24

Installing a Processor .................................................................................................

24

Installing the Processor Fan Heat Sink .......................................................................

24

Connecting the Processor Fan Heat Sink Cable.........................................................

25

Removing the Processor ............................................................................................

25

Installing and Removing Memory ........................................................................................

26

Installing DIMMs .........................................................................................................

26

Removing DIMMs .......................................................................................................

27

Installing and Removing an AGP Card ................................................................................

27

Installing an AGP Card ...............................................................................................

27

Removing the AGP Card ............................................................................................

28

Connecting the IDE Cable ...................................................................................................

28

Connecting the Front Panel Header ....................................................................................

30

Setting the BIOS Configuration Jumper Block .....................................................................

30

Installing a Front Panel Audio Solution ................................................................................

31

Installing a Front Panel USB Solution..................................................................................

31

Clearing Passwords ............................................................................................................

32

Replacing the Battery ..........................................................................................................

33

3 Updating the BIOS

 

Updating the BIOS with the Intel® Express BIOS Update Utility ..........................................

37

Updating the BIOS with the Intel® Flash Memory Update Utility ..........................................

38

Obtaining the BIOS Update File..................................................................................

38

Updating the BIOS......................................................................................................

38

Recovering the BIOS..................................................................................................

39

4 Using the BIOS Setup Program

 

Maintenance Menu..............................................................................................................

42

Main Menu ..........................................................................................................................

43

Advanced Menu ..................................................................................................................

44

PCI Configuration Submenu .......................................................................................

45

Boot Configuration Submenu......................................................................................

46

Peripheral Configuration Submenu.............................................................................

47

IDE Configuration Submenu .......................................................................................

49

Primary/Secondary IDE Master/Slave Submenus.......................................................

50

Diskette Configuration Submenu ................................................................................

51

Event Log Configuration Submenu .............................................................................

52

Video Configuration Submenu ....................................................................................

53

USB Configuration Submenu......................................................................................

54

Chipset Configuration Submenu .................................................................................

55

Security Menu .....................................................................................................................

56

Power Menu ........................................................................................................................

57

ACPI Submenu...........................................................................................................

57

iv

Contents

 

Boot Menu...........................................................................................................................

58

 

 

Boot Device Priority Submenu ....................................................................................

59

 

 

Hard Disk Drives Submenu ........................................................................................

59

 

 

Removable Devices Submenu....................................................................................

60

 

 

ATAPI CD-ROM Drives ..............................................................................................

60

 

Exit Menu ............................................................................................................................

61

5

Technical Reference

 

 

Board Connectors ...............................................................................................................

63

 

 

Back Panel Connectors ..............................................................................................

64

 

 

Midboard Connectors .................................................................................................

65

 

 

Audio Connectors ..............................................................................................

65

 

 

Power and Hardware Connectors ......................................................................

66

 

 

Add-In Card and Peripheral Interface Connectors..............................................

67

 

 

Front Panel Headers ..................................................................................................

68

 

Desktop Board Resources...................................................................................................

70

 

 

Memory Map ..............................................................................................................

70

 

 

DMA Channels ...........................................................................................................

70

 

 

Interrupts ....................................................................................................................

71

A

Error Messages and Indicators

 

 

BIOS Beep Codes ...............................................................................................................

73

 

BIOS Error Messages .........................................................................................................

74

B

Regulatory Compliance

 

 

Safety Regulations ..............................................................................................................

77

 

EMC Regulations ................................................................................................................

77

 

Product Certification Markings.............................................................................................

78

 

Installation Precautions .......................................................................................................

79

 

Installation Instructions........................................................................................................

79

 

 

Ensure Electromagnetic Compatibility (EMC) Compliance .........................................

79

 

 

Chassis and Component Certifications .......................................................................

80

 

 

Prevent Power Supply Overload.................................................................................

80

 

 

Place Battery Marking ................................................................................................

80

 

 

Use Only for Intended Applications.............................................................................

80

Figures

 

 

1.

Desktop Board D845GRG Components ........................................................................

9

 

2.

Desktop Board D845GBV Components ........................................................................

10

 

3.

Location of Standby Power Indicator.............................................................................

18

 

4.

Installing the I/O Shield .................................................................................................

22

 

5.

Desktop Board D845GBV Mounting Holes....................................................................

23

 

6.

Installing a Processor....................................................................................................

24

 

7.

Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector ........

25

 

8.

Installing a Memory Module ..........................................................................................

26

 

9.

Removing the AGP Card ..............................................................................................

28

 

10. Connecting the IDE Cable.............................................................................................

29

 

11. Location of the BIOS Configuration Jumper Block ........................................................

30

v

Intel Desktop Boards D845GRG and D845GBV Product Guide

12.

Removing the Battery ...................................................................................................

35

13.

Back Panel Connectors ................................................................................................

64

14.

Audio Connectors .........................................................................................................

65

15. Power and Hardware Control Connectors.....................................................................

66

16.

Desktop Board D845GBV Add-in Card and Peripheral Interface Connectors ...............

67

17.

Front Panel Headers.....................................................................................................

68

Tables

 

1.

Feature Summary ..........................................................................................................

7

2.

Supported Processors ..................................................................................................

11

3.

RJ-45 LAN Connector LEDs .........................................................................................

15

4.

Jumper Settings for the BIOS Setup Program Modes (J9H2) .......................................

30

5.

BIOS Setup Program Menu Bar....................................................................................

41

6.

BIOS Setup Program Function Keys.............................................................................

42

7.

Maintenance Menu .......................................................................................................

42

8.

Main Menu....................................................................................................................

43

9.

Advanced Menu............................................................................................................

44

10.

PCI Configuration Submenu .........................................................................................

45

11.

Boot Configuration Submenu ........................................................................................

46

12.

Peripheral Configuration Submenu ...............................................................................

47

13.

IDE Configuration Submenu .........................................................................................

49

14.

Primary/Secondary IDE Master/Slave Submenus.........................................................

50

15.

Diskette Configuration Submenu ..................................................................................

51

16.

Event Log Configuration Submenu ...............................................................................

52

17.

Video Configuration Submenu ......................................................................................

53

18.

USB Configuration Submenu ........................................................................................

54

19.

Chipset Configuration Submenu ...................................................................................

55

20.

Security Menu...............................................................................................................

56

21.

Power Menu..................................................................................................................

57

22.

ACPI Submenu .............................................................................................................

57

23.

Boot Menu ....................................................................................................................

58

24.

Boot Device Priority Submenu ......................................................................................

59

25.

Hard Disk Drives Submenu...........................................................................................

59

26.

Removable Devices Submenu......................................................................................

60

27.

ATAPI CD-ROM Drives Submenu.................................................................................

60

28.

Exit Menu......................................................................................................................

61

29.

Front Panel Audio Header Signal Names (J8A1) ..........................................................

65

30.

Front Panel USB 2.0 Header (J9F1) .............................................................................

68

31.

Front Panel Header (J9G1)...........................................................................................

69

32.

System Memory Map....................................................................................................

70

33.

DMA Channels..............................................................................................................

70

34.

Interrupts ......................................................................................................................

71

35.

Beep Codes ..................................................................................................................

73

36.

BIOS Error Messages ...................................................................................................

74

37.

Safety Regulations........................................................................................................

77

38.

EMC Regulations ..........................................................................................................

77

vi

1 Desktop Board Features

NOTE

The Intel® Desktop Board D845GRG layout was used for illustrations unless otherwise noted.

Table 1 describes the major features of Intel® Desktop Boards D845GRG and D845GBV.

Table 1. Feature Summary

Form Factors

microATX at 9.6 inches by 8.2 inches (Desktop Board D845GRG)

 

ATX at 12.0 inches by 8.2 inches (Desktop Board D845GBV)

Processor

Memory

Chipset

I/O Control

Graphics

Audio

Support for:

533/400 MHz front side bus (FSB) Intel® Pentium® 4 processor in an mPGA478 socket

400 MHz FSB Intel® Celeron® processor in an mPGA-478 socket

Two 184-pin, 2.5 V SDRAM Dual Inline Memory Module (DIMM) sockets

266/200 MHz DDR SDRAM interface

Designed to support up to 2 GB of system memory

NOTE: Desktop Boards D845GRG and D845GBV have been designed to support DIMMs based on 512 Mbit technology up to 2 GB, but this technology has not been validated on these Intel desktop boards. For more information about the latest list of tested memory, refer to the Intel World Wide Web site at: http://support.intel.com/support/motherboards/desktop/

Intel® 845G chipset consisting of:

Intel® 82845G Graphics Memory Controller Hub (GMCH) with Accelerated Hub Architecture (AHA) bus

Intel® 82801DB I/O Controller Hub (ICH4) with support for up to six Hi-Speed Universal Serial Bus 2.0 (USB 2.0) ports

4 Mbit Firmware Hub (FWH)

Support for:

SMSC LPC47M172

National Semiconductor PC87372

Intel 845G chipset

Integrated Intel® Extreme Graphics

1.5 V AGP connector

Single AGP port via the connector or integrated graphics

AGP 2.0 including 1x/2x/4x AGP data transfers and 2x/4x Fast Writes

350 MHz AGP Digital Display (ADD) interface cards

Digital Video Output (DVO) port

Intel 845G chipset (AC ’97)

Analog Devices Inc. audio codec

continued

7

Intel Desktop Boards D845GRG and D845GBV Product Guide

Table 1. Feature Summary (continued)

LAN (optional)

Intel® 82562ET 10/100 Mbit/sec Platform LAN Connect (PLC) device and

 

 

RJ-45 connector

 

 

 

Peripheral Interfaces

Up to six USB 2.0 ports

 

 

— Four ports routed to the back panel

 

 

— Two ports routed to the front panel USB header

 

Two IDE interfaces with Ultra DMA-33 and ATA-66/100 support

 

One diskette drive interface

 

One parallel port

 

Two serial ports (one via a board header)

 

PS/2keyboard and mouse ports

Expansion Capabilities Desktop Board D845GRG:

Three PCI bus add-in card connectors

One AGP connector

One optional Communication and Networking Riser (CNR) connector (slot shared with PCI bus connector 3)

Desktop Board D845GBV:

Six PCI bus add-in card connectors

One AGP connector

One optional CNR connector (slot shared with PCI bus connector 6)

BIOS

Power Management

Intel/AMI BIOS

4 Mbit symmetrical flash memory

Support for SMBIOS

Support for Advanced Configuration and Power Interface (ACPI)

Suspend to RAM (STR) support

Wake on USB, PCI, CNR, RS-232, PS/2, LAN, and front panel

Hardware Management Hardware monitor with:

Two fan sensing inputs used to monitor fan activity

Remote diode temperature sensing

Voltage sensing to detect out of range values

NOTE

For information about Intel® desktop boards, including technical product specifications, BIOS updates, and device drivers, go to the Intel World Wide Web site at:

http://support.intel.com/support/motherboards/desktop/

8

Desktop Board Features

Components

Figure 1 shows the location of the major components on Desktop Board D845GRG.

A

B

C D E

 

 

F

 

 

 

 

 

 

 

G

CC

 

 

 

 

 

H

 

 

 

 

 

 

BB

 

 

 

 

 

I

 

 

 

 

 

 

AA

 

 

 

 

 

 

Z

 

 

 

 

 

J

Y

 

 

 

 

 

 

 

 

 

 

K

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

L

W

 

 

 

 

 

 

V U T S R Q

P

O

N

M

 

 

 

 

 

 

OM13590

A

Audio codec

P

Primary IDE connector

B

Front panel audio header

Q

Speaker

C

Auxiliary line-in connector (ATAPI)

R

Battery

D

Rear chassis fan connector (tachometer input)

S

SCSI hard drive activity LED connector

E

CD-ROM connector (ATAPI)

T

Alternate power/sleep LED header

F

Back panel connectors

U

Chassis intrusion connector

G

12 V processor core voltage connector

V

Front chassis fan connector

H

Intel 82845G (GMCH)

W

BIOS configuration jumper

I

Processor socket

X

Front panel header

J

Processor fan connector (tachometer input)

Y

Intel 82801DB (ICH4)

K

DIMM sockets

Z

Front panel USB 2.0 header

L

Super I/O controller

AA

AGP connector

M

Main power connector

BB

PCI bus add-in card connectors

N

Diskette drive connector

CC

CNR (optional)

O

Secondary IDE connector

 

 

 

 

 

 

Figure 1. Desktop Board D845GRG Components

9

Intel Desktop Boards D845GRG and D845GBV Product Guide

Figure 2 shows the location of the major components on Desktop Board D845GBV.

 

A

B

C D

E

 

 

F

 

 

 

 

 

 

 

 

 

 

G

CC

 

 

 

 

 

 

 

 

H

BB

 

 

 

 

 

 

 

 

I

 

 

 

 

 

 

 

 

 

AA

 

 

 

 

 

 

 

 

 

Z

 

 

 

 

 

 

 

 

J

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

X

W V

U

T

R Q

P

O

N

M

 

 

 

S

 

 

 

 

OM13589

 

 

 

 

 

 

 

 

 

A

Audio codec

P

Primary IDE connector

B

Front panel audio header

Q

Speaker

C

Auxiliary line-in connector (ATAPI)

R

Battery

D

Rear chassis fan connector (tachometer input)

S

SCSI hard drive activity LED connector

E

CD-ROM connector (ATAPI)

T

Alternate power/sleep LED header

F

Back panel connectors

U

Chassis intrusion connector

G

12 V processor core voltage connector

V

Front chassis fan connector

H

Intel 82845G (GMCH)

W

BIOS configuration jumper

I

Processor socket

X

Front panel header

J

Processor fan connector (tachometer input)

Y

Intel 82801DB (ICH4)

K

DIMM sockets

Z

Front panel USB header

L

Super I/O controller

AA

AGP connector

M

Power connector

BB PCI bus add-in card connectors

N

Diskette drive connector

CC

CNR (optional)

O

Secondary IDE connector

 

 

Figure 2. Desktop Board D845GBV Components

10

Desktop Board Features

Processor

CAUTION

Failure to use an ATX12V power supply, or not connecting the additional power supply lead to Desktop Board D845GRG or D845GBV may result in damage to the desktop board and/or power supply.

Desktop Boards D845GRG and D845GBV support a single Intel Pentium 4 processor or Intel Celeron processor. Processors are not included with the desktop board and must be purchased separately.

The processor connects to the Intel desktop board through the mPGA478-pin socket. The Intel Pentium 4 processor and Intel Celeron processor may be removed and replaced to accommodate supported higher speed processors.

Desktop Boards D845GRG and D845GBV support the processors listed in Table 2.

Table 2. Supported Processors

Type

Designation

Front Side Bus Frequency

L2 Cache

Intel Pentium 4 processor on .13

2.40B and 2.26 GHz

533 MHz

512 KB

micron process in an mPGA-478

 

 

 

package

 

 

 

Intel Pentium 4 processor on .13 micron process in an mPGA-478 package

Intel Pentium 4 processor on .18 micron process in an mPGA-478 package

2.40, 2.20A, 2A, 1.80A, and 1.60A GHz

2, 1.90, 1.80, 1.70, 1.60, and 1.50 GHz

400 MHz

400 MHz

512 KB

256 KB

Intel Celeron processor in an

1.8 and 1.7 GHz

400 MHz

128 KB

mPGA-478 package

 

 

 

For the latest information on processor support for Desktop Boards D845GRG and D845GBV, refer to the Intel World Wide Web site at:

http://support.intel.com/support/motherboards/desktop/

For instructions on installing or upgrading the processor, see Chapter 2 on page 21.

Desktop Boards D845GRG and D845GBV require an ATX12V compliant power supply to function according to desktop board specifications. Both boards have two ATX12V compliant power supply connectors that are needed to provide extra power to the Intel 845G chipset and Intel Pentium 4 processor or Intel Celeron processor.

Items B and D in Figure 15 on page 66 show the two power connector locations.

11

Intel Desktop Boards D845GRG and D845GBV Product Guide

Main Memory

NOTE

To be fully compliant with all applicable Intel® SDRAM memory specifications, the board should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. If your memory modules do not support SPD, you will see a notification to this effect on the screen at power up. The BIOS will attempt to configure the memory controller for normal operation.

Desktop Boards D845GRG and D845GBV support system memory as defined below:

Up to two 184-pin DDR SDRAM Dual Inline Memory Modules (DIMMs) with gold-plated contacts

DDR266 and DDR200 SDRAM

Unbuffered and non-registered single or double-sided DIMMs

Serial Presence Detect (SPD) memory

Non-ECC and ECC DIMMs

2.5 V memory only

64 Mbit, 128 Mbit, 256 Mbit, and 512 Mbit technologies for the following memory configurations:

64 MB (minimum)

256 MB (64 Mbit technology)

512 MB (128 Mbit technology)

1024 MB (256 Mbit technology)

2048 MB (512 Mbit technology)

NOTE

Desktop Boards D845GRG and D845GBV have been designed to support DIMMs based on

512 Mbit technology up to 2 GB, but this technology has not been validated on these Intel desktop boards. For more information about the latest list of tested memory, refer to the Intel World Wide Web site at:

http://support.intel.com/support/motherboards/desktop/

All memory components and DIMMs used with the Intel desktop boards must comply with the PC SDRAM specifications. You can access these documents through the World Wide Web at:

http://www.intel.com/technology/memory/pcsdram/spec/

For information about installing memory, see Chapter 2 starting on page 21.

Intel® 845G Chipset

The Intel 845G chipset consists of the following devices:

Intel 82845G Graphics Memory Controller Hub (GMCH) with AHA bus

Intel 82801DB I/O Controller Hub (ICH4) with AHA bus

Firmware Hub (FWH)

12

Desktop Board Features

Intel® 82845G Graphics Memory Controller Hub (GMCH)

The GMCH provides the processor, system memory, AGP, and hub interfaces in the

Intel 845 chipset platform. Features on Desktop Boards D845GRG and D845GBV include:

Single processor support with 533 MHz or 400 MHz data transfer rates

Support for up to 2 GB (with 512 Mbit technology) DDR-SDRAM at 266/200 MHz operation

NOTE

512 Mbit technology has not been validated on these boards

1.5 V AGP interface with 4X Side Band Addressing (SBA)/data transfer and 2X and 4X fast write

Intel® 82801DB I/O Controller Hub (ICH4)

The ICH4 integrates many I/O functions and provides the I/O subsystem with access to the rest of the platform. ICH4 features on Desktop Boards D845GRG and D845GBV include:

Integrated IDE controller supports two Ultra DMA-33 and ATA-66/100 channels, and PIO modes

SMBus interface

FWH interface

Low Pin Count (LPC) interface

AC ’97 2.1 compliant link for audio and telephony codecs

Integrated Intel 82562ET 10/100 Mbit/sec Platform LAN Connect (PLC) device for interfacing the ICH4 LAN connect interface to LAN connect component

Three UHCI and one EHCI compliant host controllers with support for up to six USB ports

Firmware Hub (FWH)

The 4 Mbit Firmware Hub has these features:

System BIOS

System security and management logic

Input/Output (I/O) Controller

The SMSC LPC47M172 or National Semiconductor PC87372 super I/O controllers feature the following:

Low pin count (LPC) interface

Two serial ports (one via a board connector)

One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support

Serial IRQ interface compatible with serialized IRQ support for PCI systems

PS/2-style mouse and keyboard interfaces

Interface for one 1.2 MB, 1.44 MB, or 2.88 MB diskette drive

Intelligent power management, including a programmable wake up event interface

PCI power management support

Two fan tachometer inputs

13

Intel Desktop Boards D845GRG and D845GBV Product Guide

Graphics Subsystem

The graphics subsystem features the following:

Intel 845G chipset

Intel Extreme Graphics

1.5 V AGP connector

Audio Subsystem

The audio subsystem features the following:

Intel 845G chipset (AC ’97)

Analog Devices Inc. AD1981A audio codec

NOTE

The line out connector, located on the back panel, is designed to power either headphones or amplified speakers only. Poor audio quality may occur if passive (non-amplified) speakers are connected to this output.

Audio drivers and utilities are available from Intel’s World Wide Web site: http://support.intel.com/support/motherboards/desktop/

LAN Subsystem (Optional)

The optional Intel 82562ET (with the Intel 82801DB ICH4) provides a Fast PCI LAN subsystem providing both 10Base-T and 100Base-TX connectivity. The Intel 82562ET provides the following functions:

Basic 10/100 Ethernet LAN connectivity

Supports RJ-45 connector with status indicator LEDs

Programmable transit threshold

Configurable EEPROM that contains the MAC address

LAN Subsystem Software

For LAN software and drivers, refer to the D845GRG or D845GBV link on Intel’s World Wide Web site at:

http://support.intel.com/support/motherboards/desktop

14

Desktop Board Features

RJ-45 LAN Connector LEDs

Two LEDs are built into the RJ-45 LAN connector. Table 3 describes the LED states when the board is powered up and the LAN subsystem is operating.

Table 3.

RJ-45 LAN Connector LEDs

 

 

 

 

LED Color

 

LED State

Indicates

Green

 

Off

10 Mbit/sec data rate is selected.

 

 

On

100 Mbit/sec data rate is selected.

Yellow

 

Off

LAN link is not established.

 

 

On (steady state)

LAN link is established.

 

 

On (brighter and pulsing)

The computer is communicating with another computer on the

 

 

 

LAN.

Hi-Speed USB 2.0 Support

NOTE

Computer systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use a shielded cable that meets the requirements for a full-speed USB device.

These Intel desktop boards support up to six USB 2.0 ports via ICH4; four ports routed to the back panel and two routed to a USB front panel header. USB 2.0 ports are backward compatible with USB 1.1 devices. USB 1.1 devices will function normally at USB 1.1 speeds.

USB 2.0 support requires both an operating system and drivers that fully support USB 2.0 transfer rates. Disabling Hi-Speed USB in BIOS reverts all USB 2.0 ports to USB 1.1 operation. This may be required to accommodate operating systems that do not support USB 2.0.

NOTE

USB devices are limited to USB 1.1 transfer rates prior to operating system and driver initialization.

Enhanced IDE Interface

The ICH4’s IDE interface handles the exchange of information between the processor and peripheral devices like hard disks, CD-ROM drives, and Iomega Zipdrives inside the computer. The interface supports:

Up to four IDE devices (such as hard drives)

ATAPI devices (such as CD-ROM drives)

Older PIO Mode devices

Ultra DMA-33 and ATA-66/100 protocols

Laser servo (LS-120) drives

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Intel Desktop Boards D845GRG and D845GBV Product Guide

Expansion Slots

Desktop Boards D845GRG and D845GBV have the following add-in card connectors:

Desktop Board D845GRG has:

Three PCI bus add-in card connectors (SMBus routed to PCI bus connector 2)

One AGP connector

One optional CNR connector (slot shared with PCI bus connector 3)

Desktop Board D845GBV has:

Six PCI bus add-in card connectors (SMBus routed to PCI bus connector 2)

One AGP connector

One optional CNR connector (slot shared with PCI bus connector 6)

Accelerated Graphics Port (AGP)

NOTE

Desktop Boards D845GRG and D845GBV are only compatible with 1.5 V AGP cards.

AGP is a high-performance interface for graphics-intensive applications, such as 3D graphics. AGP is independent of the PCI bus and is intended for exclusive use with graphical

display devices.

The AGP connector supports 1.5 V AGP 4X and 2X add-in cards.

Communication and Networking Riser (CNR) (Optional)

The optional CNR provides an interface that supports various features such as audio, modem, USB, and LAN.

BIOS

The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI and IDE auto-configuration utilities, and the video BIOS. The BIOS is stored in the Firmware Hub.

The BIOS can be updated by following the instructions in Chapter 3 on page 37.

PCI Auto Configuration

If you install a PCI add-in card in your computer, the PCI auto-configuration utility in the BIOS automatically detects and configures the resources (IRQs, DMA channels, and I/O space) for that add-in card. You do not need to run the BIOS Setup program after you install a PCI add-in card.

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Desktop Board Features

IDE Auto Configuration

If you install an IDE device (such as a hard drive) in your computer, the IDE auto-configuration utility in the BIOS automatically detects and configures the device for your computer. You do not need to run the BIOS Setup program after installing an IDE device. You can override the autoconfiguration options by specifying manual configuration in the BIOS Setup program.

To use ATA-66/100 features, the following items are required:

An ATA-66/100 peripheral device

An ATA-66/100 compatible cable

ATA-66/100 operating system device drivers

Security Passwords

The BIOS includes security features that restrict whether the BIOS Setup program can be accessed and who can boot the computer. A supervisor password and a user password can be set for the Setup and for booting the computer, with the following restrictions:

The supervisor password gives unrestricted access to view and change all Setup options. If only the supervisor password is set, pressing <Enter> at the password prompt of Setup gives the user restricted access to Setup.

If both the supervisor and user passwords are set, you must enter either the supervisor password or the user password to access Setup. Setup options are then available for viewing and changing depending on whether the supervisor or user password was entered.

Setting a user password restricts who can boot the computer. The password prompt is displayed before the computer is booted. If only the supervisor password is set, the computer boots without asking for a password. If both passwords are set, you can enter either password to boot the computer.

Power Management Features

Power management is implemented at several levels, including:

Advanced Configuration and Power Interface (ACPI)

Suspend to RAM (Instantly Available PC technology)

ACPI

ACPI gives the operating system direct control over the power management and Plug & Play functions of a computer. The use of ACPI with Desktop Board D845GRG or D845GBV requires an operating system that provides full ACPI support.

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Intel Desktop Boards D845GRG and D845GBV Product Guide

Suspend to RAM (Instantly Available PC Technology)

CAUTION

For Instantly Available PC technology, the 5 V standby line for the power supply must be capable of delivering adequate +5 V standby current. Failure to provide adequate standby current when using this feature can damage the power supply and/or effect ACPI S3 sleep state functionality.

Instantly Available technology enables the board to enter the ACPI S3 (Suspend-to-RAM) sleep state. While in the S3 sleep state, the computer will appear to be off. When signaled by a wake-up device or event, the system quickly returns to its last known awake state.

The Intel desktop board’s standby power indicator, shown in Figure 3, is lit when there is standby power to the system. This includes the memory modules and PCI bus connectors, even when the computer appears to be off.

If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the LED turning amber.

CR6H1

OM13591

Figure 3. Location of Standby Power Indicator

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Desktop Board Features

CAUTION

Power supplies used with this board must be able to provide enough standby current to support the standard Instantly Available (ACPI S3 sleep state) configuration. If the standby current necessary to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity, the Intel desktop board may lose register settings stored in memory.

For more information on standby current requirements for these desktop boards, refer to the TPS by selecting the Technical Documentation link at:

http://developer.intel.com/design/motherbd/

Hardware Management

Power connectors

Fan connectors

Resume on Ring

Wake from USB

Wake from PS/2 keyboard/mouse

PME# wakeup support

Power Connectors

Desktop Boards D845GRG and D845GBV have two power connectors. See Figure 15 on page 66 for the location of the power connectors.

Fan Connectors

Desktop Boards D845GRG and D845GBV have two chassis fan connectors and one processor fan connector. See Figure 15 on page 66 for the location of the fan connectors.

Resume on Ring

The operation of Resume on Ring can be summarized as follows:

Resumes operation from either ACPI S1 or ACPI S3 state

Requires only one call to access the computer

Detects incoming call similarly for external and internal modems

Requires modem interrupt be unmasked for correct operation

Wake from USB

USB bus activity wakes the computer from an ACPI S1 or S3 state.

NOTE

Wake from USB requires the use of a USB peripheral that supports Wake from USB.

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Intel Desktop Boards D845GRG and D845GBV Product Guide

Wake from PS/2 Keyboard/Mouse

PS/2 keyboard/mouse activity wakes the computer from an ACPI S1 or S3 state.

PME# Wakeup Support

When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, or S5 state.

Speaker

A speaker is mounted on the desktop board. The speaker provides audible error code (beep code) information during the Power-On Self-Test (POST).

Battery

A battery on the Intel desktop board keeps the values in CMOS RAM and the clock current when the computer is turned off. See Chapter 2 starting on page 21 for instructions on how to replace the battery.

Real-Time Clock

Desktop Boards D845GRG and D845GBV have a time-of-day clock and 100-year calendar. A battery on the desktop board keeps the clock current when the computer is turned off.

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2Installing and Replacing Desktop Board Components

This chapter tells you how to:

Install the I/O shield

Install and remove the desktop board

Install and remove a processor

Install and remove memory

Install and remove an AGP card

Connect the IDE cable

Connect the front panel header

Set the BIOS jumper

Install the front panel audio solution

Install the front panel USB solution

Clear passwords

Replace the battery

Before You Begin

CAUTION

Before you install this board in a chassis, see Appendix B for regulatory requirements and precautions.

Always follow the steps in each procedure in the correct order.

Set up a log to record information about your computer, such as model, serial numbers, installed options, and configuration information.

Electrostatic discharge (ESD) can damage components. Perform the procedures described in this chapter only at an ESD workstation using an antistatic wrist strap and a conductive foam pad. If such a station is not available, you can provide some ESD protection by wearing an antistatic wrist strap and attaching it to a metal part of the computer chassis.

WARNINGS

The procedures in this chapter assume familiarity with the general terminology associated with personal computers and with the safety practices and regulatory compliance required for using and modifying electronic equipment.

Disconnect the computer from its power source and from any telecommunications links, networks, or modems before performing any of the procedures described in this chapter. Failure to disconnect power, telecommunications links, networks, or modems before you open the computer or perform any procedures can result in personal injury or equipment damage. Some circuitry on the board can continue to operate even though the front panel power button is off.

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Intel Desktop Boards D845GRG and D845GBV Product Guide

Installing the I/O Shield

The Intel desktop board comes with an I/O shield. When installed in the chassis, the shield blocks radio frequency transmissions, protects internal components from dust and foreign objects, and promotes correct airflow within the chassis.

Install the I/O shield before installing the desktop board in the chassis. Place the shield inside the chassis as shown in Figure 4. Press the shield into place so that it fits tightly and securely. If the shield doesn’t fit, obtain a properly-sized shield from the chassis supplier.

OM11310

Figure 4. Installing the I/O Shield

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Installing and Replacing Desktop Board Components

Installing and Removing the Desktop Board

Refer to your chassis manual for instructions on installing and removing the Intel desktop board.

WARNING

This procedure should be done only by qualified technical personnel. Disconnect the computer from its power source before performing the procedures described here. Failure to disconnect the power before you open the computer can result in personal injury or equipment damage.

NOTES

You will need a Phillips(#2 bit) screwdriver.

Refer to Appendix B for regulatory requirements and installation instructions and precautions.

Figure 5 shows the location of the eight mounting holes for Desktop Board D845GBV. Desktop Board D845GRG has six mounting holes.

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Figure 5. Desktop Board D845GBV Mounting Holes

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Intel Desktop Boards D845GRG and D845GBV Product Guide

Installing and Removing a Processor

Instructions on how to install the processor to the Intel desktop board are given below.

Installing a Processor

CAUTION

Before installing or removing the processor, make sure that AC power has been removed by unplugging the power cord from the computer; the standby power LED should not be lit (see Figure 3 on page 18). Failure to do so could damage the processor and the board.

To install a processor, follow these instructions:

1.Observe the precautions in “Before You Begin” on page 21.

2.Locate the processor socket and raise the socket lever completely.

3.Install the processor so that the corner with the triangle marking (A) is aligned with the corner where the lever is attached to the socket (see Figure 6).

4.Lower the lever to its original position.

mPGA478B

mPGA478B

mPGA478B

A

OM12078

Figure 6. Installing a Processor

Installing the Processor Fan Heat Sink

Desktop Boards D845GRG and D845GBV have an integrated processor fan heat sink retention mechanism (RM). For instructions on how to install the processor fan heat sink to the integrated processor fan heat sink RM, refer to the boxed processor manual or the Intel World Wide Web site at:

http://support.intel.com/support/processors/pentium4/intnotes478.htm

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