Intel D915GEV, D915GAG, D915GAV, D915GUX User Manual

Intel® Desktop Board D915GEV/D915GUX/ D915GAV/D915GAG Product Guide

Order Number: C64136-002

Revision History

Revision Revision History Date

-001

First release of the Intel® Desktop Board D915GEV/D915GUX/ D915GAV/D915GAG Product Guide.

-002

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

Second release of Intel® Desktop Board D915GEV/D915GUX/ D915GAV/D915GAG Product Guide.

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.

Any changes or modifications to the equipment not expressly approved by Intel Corporation could void the user’s authority to operate the equipment.

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 Board D915GEV/D915GUX/D915GAV/D915GAG 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.

June 2004

September 2004

Preface

This Product Guide gives information about board layout, component installation, BIOS update, and regulatory requirements for Intel

Desktop Board D915GEV/D915GUX/D915GAV/D915GAG.

Intended Audience

The Product Guide is intended for technically qualified personnel. It is not intended for general audiences.

Information Layout

The chapters in this Product Guide are arranged as follows:

1 Desktop Board Features

2 Installing and Replacing Desktop Board Components

board and other hardware components

3 BIOS

4 Trusted Platform Module (Optional)

5 Desktop Board Resources

A Error Messages and Indicators

B Regulatory Compliance

: instructions on how to update the BIOS

: a summary of product features

: instructions on how to install the desktop

: information about setting up Trusted Platform Module

: information about connectors and desktop board resources

: information about BIOS error messages and beep codes

: safety and EMC regulations, product certification

Conventions

The following conventions are used in this manual:

WARNING

Warnings indicate conditions that, if not observed, can cause personal injury.

CAUTION

Cautions warn the user about how to prevent damage to hardware or loss of data.

NOTE

Notes call attention to important information.

iii

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Terminology

The table below gives descriptions to some common terms used in the product guide.

Term Description

GB Gigabyte (1,073,741,824 bytes)

GHz Gigahertz (one billion hertz)

KB Kilobyte (1024 bytes)

MB Megabyte (1,048,576 bytes)

Mbit Megabit (1,048,576 bits)

MHz Megahertz (one million hertz)

Box Contents

• Intel Desktop Board

• I/O shield

• One IDE cable

• Two SATA cables (second cable optional)

• One diskette drive cable

• One VGA port cover

• Quick Reference Guide

• Configuration and battery caution statement label

• Intel

• Trusted Platform Module Quick Reference (optional)

• Trusted Platform Module Driver CD (optional)

• Trusted Platform Warning Label (optional)

Express Installer CD-ROM

Contents

1 Desktop Board Features

Manufacturing Options.......................................................................................................... 11

Supported Operating Systems .............................................................................................. 11

Desktop Board Components .................................................................................................12

Processor.............................................................................................................................. 16

Main Memory ........................................................................................................................17

Intel® 915G Express Chipset ................................................................................................18

Graphics Subsystem............................................................................................................. 19

Audio Subsystem ..................................................................................................................19

Input/Output (I/O) Controller.................................................................................................. 20

LAN Subsystem (Optional).................................................................................................... 20

LAN Subsystem Software ............................................................................................ 20

RJ-45 LAN Connector LEDs ........................................................................................ 20

Hi-Speed USB 2.0 Support ................................................................................................... 21

Enhanced IDE Interface........................................................................................................ 22

Serial ATA............................................................................................................................. 22

Expandability......................................................................................................................... 22

BIOS...................................................................................................................................... 22

Serial ATA and IDE Auto Configuration ....................................................................... 22

PCI and PCI Express Auto Configuration ....................................................................23

Security Passwords...................................................................................................... 23

Chassis Intrusion................................................................................................................... 23

Power Management Features............................................................................................... 23

ACPI............................................................................................................................. 23

Power Connectors........................................................................................................ 24

Fan Connectors............................................................................................................ 24

Fan Speed Control (Intel® Precision Cooling Technology) .......................................... 24

Suspend to RAM (Instantly Available PC Technology) ................................................24

Resume on Ring ..........................................................................................................25

Wake from USB ...........................................................................................................26

Wake from PS/2 Keyboard/Mouse............................................................................... 26

PME# Wakeup Support................................................................................................ 26

Speaker................................................................................................................................. 26

Battery................................................................................................................................... 26

Real-Time Clock.................................................................................................................... 26

2 Installing and Replacing Desktop Board Components

Before You Begin.................................................................................................................. 27

Installation Precautions......................................................................................................... 28

Installation Instructions.......................................................................................................... 28

Ensure Electromagnetic Compatibility (EMC) Compliance ..........................................28

Chassis and Component Certifications ........................................................................29

Prevent Power Supply Overload ..................................................................................29

Place Battery Marking ..................................................................................................29

Use Only for Intended Applications.............................................................................. 30

Installing the I/O Shield ......................................................................................................... 30

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Installing and Removing the Desktop Board .........................................................................31

Installing and Removing a Processor.................................................................................... 32

Installing a Processor................................................................................................... 32

Installing the Processor Fan Heat Sink ........................................................................34

Connecting the Processor Fan Heat Sink Cable.......................................................... 35

Removing the Processor.............................................................................................. 35

Installing and Removing Memory.......................................................................................... 36

Installing DIMMs........................................................................................................... 38

Removing DIMMs......................................................................................................... 40

Installing and Removing a PCI Express x16 Card ................................................................ 41

Installing a PCI Express x16 Card ...............................................................................41

Removing the PCI Express x16 Card ..........................................................................41

Connecting the IDE Cable..................................................................................................... 42

Connecting the Serial ATA (SATA) Cable............................................................................. 43

Connecting Internal Headers ................................................................................................44

Installing a Front Panel Audio Solution ........................................................................ 45

Connecting USB 2.0 Headers ......................................................................................46

Connecting the Front Panel Header............................................................................. 46

Setting Up the Flexible 6-Channel Audio with Jack Re-tasking ........................................... 47

Connecting Fan and Power Cables ......................................................................................48

Connecting Fan Cables................................................................................................ 48

Connecting Power Cables............................................................................................ 49

PCI Bus Add-In Card Connectors ......................................................................................... 51

Setting the BIOS Configuration Jumper Block ...................................................................... 52

Clearing Passwords ..............................................................................................................53

Back Panel Connectors......................................................................................................... 54

Replacing the Battery............................................................................................................ 55

3 BIOS

Updating the BIOS with the Intel® Express BIOS Update Utility ...........................................59

Updating the BIOS with the Iflash Memory Update Utility..................................................... 60

Obtaining the BIOS Update File................................................................................... 60

Updating the BIOS ....................................................................................................... 60

Recovering the BIOS ...................................................................................................61

4 Trusted Platform Module (Optional)

System Requirements........................................................................................................... 63

Warning of Potential Data Loss............................................................................................. 63

Security Precautions ............................................................................................................. 64

Password Procedures ..................................................................................................64

Emergency Recovery File Back Up Procedures ..........................................................65

Hard Drive Image Backup Procedures......................................................................... 65

Clear Text Backup (Optional)....................................................................................... 65

Trusted Platform Module Ownership..................................................................................... 66

Enabling the Trusted Platform Module.................................................................................. 66

Assuming Trusted Platform Module Ownership.................................................................... 66

Recovery Procedures............................................................................................................ 67

Clearing Trusted Platform Module Ownership ...................................................................... 69

Software Support ..................................................................................................................69

5 Desktop Board Resources

Memory Map ......................................................................................................................... 71

DMA Channels...................................................................................................................... 71

Interrupts............................................................................................................................... 72

A Error Messages and Indicators

BIOS Beep Codes.................................................................................................................73

BIOS Error Messages ........................................................................................................... 74

B Regulatory Compliance

Safety Regulations................................................................................................................ 77

European Union Declaration of Conformity Statement ......................................................... 77

Product Ecology Statements................................................................................................. 78

EMC Regulations .................................................................................................................. 79

Product Certification Markings (Board Level)........................................................................ 80

Figures

1. Desktop Boards D915GAV and D915GEV Components ............................................... 12

2. Intel Desktop Boards D915GUX and D915GAG Components....................................... 14

3. Back Panel LAN Connector LED Locations ...................................................................20

4. Location of Standby Power Indicator.............................................................................. 25

5. Installing the I/O Shield................................................................................................... 30

6. Desktop Boards D915GEV and D915GAV Mounting Screw Hole Locations .................31

7. Lift Socket Lever............................................................................................................. 32

8. Lift the Load Plate and Don’t Touch the Socket Contacts ..............................................32

9. Remove the Protective Socket Cover............................................................................. 33

10. Remove the Processor from the Protective Processor Cover/Do Not Touch................. 33

11. Install Processor............................................................................................................. 34

12. Close the Load Plate ......................................................................................................34

13. Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector........ 35

14. Dual Configuration Example 1........................................................................................ 36

15. Dual Configuration Example 2........................................................................................ 37

16. Dual Configuration Example 3........................................................................................ 37

17. Matching the Correct DIMM............................................................................................ 38

18. Installing a DIMM............................................................................................................ 39

19. Inserting the PCI Express x16 Card and Covering the Back Panel VGA Port ...............41

20. Connecting the IDE Cable.............................................................................................. 42

21. Connecting the Serial ATA Cable................................................................................... 43

22. Internal Headers............................................................................................................. 44

23. Back Panel Audio Connectors for Flexible 6-Channel Audio System ............................47

24. Location of Fan Headers ................................................................................................48

25. Connecting 2x10 Power Supply Cables ......................................................................... 49

26. Connecting 2x12 Power Supply Cables ......................................................................... 50

27. Location of the PCI Bus and PCI Express Add-in Card, and Peripheral Interface

Connectors for Desktop Boards D915GAV and D915GEV ............................................51

28. Location of the BIOS Configuration Jumper Block ......................................................... 52

29. Back Panel Connectors.................................................................................................. 54

30. Removing the Battery..................................................................................................... 58

Contents

vii

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Tables

1. Feature Summary............................................................................................................. 9

2. Manufacturing Options ...................................................................................................11

3. Desktop Boards D915GAV and D915GEV Components ...............................................13

4. Desktop Boards D915GAG and D915GUX Components............................................... 15

5. Desktop Board D915GAV/D915GAG Memory Configurations....................................... 17

6. Desktop Board D915GEV/D915GUX Memory Configurations .......................................18

7. RJ-45 10/100 Ethernet LAN Connector LEDs ................................................................21

8. RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs........................................... 21

9. Front Panel Audio Header Signal Names....................................................................... 45

10. USB 2.0 Header Signal Names ......................................................................................46

11. Front Panel Header Signal Names................................................................................. 46

12. Jumper Settings for the BIOS Setup Program Modes.................................................... 52

13. System Memory Map...................................................................................................... 71

14. DMA Channels ............................................................................................................... 71

15. Interrupts ........................................................................................................................ 72

16. Beep Codes.................................................................................................................... 73

17. BIOS Error Messages..................................................................................................... 74

18. Safety Regulations ......................................................................................................... 77

19. EMC Regulations............................................................................................................ 79

20. Product Certification Markings........................................................................................ 80

viii

1 Desktop Board Features

This chapter briefly describes the main features of Intel® Desktop Board D915GEV/D915GUX/ D915GAV/D915GAG. Table 1 summarizes the major features of the desktop board.

Table 1. Feature Summary

Form Factor

Processor

Main Memory Desktop Boards D915GAV and D915GAG:

Chipset

Graphics

Audio

Expansion Capabilities

• ATX (12.00” x 9.60”) Intel Desktop Board D915GAV/D915GEV

• MicroATX (9.60” x 9.60”) Intel Desktop Board D915GUX/D915GAG

Support for an Intel® Pentium® 4 processor in the LGA775 package

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

• 400/333 MHz single or dual channel DDR SDRAM interface

• Designed to support up to 4 GB of system memory

Desktop Boards D915GEV and D915GUX:

• Four 240-pin, 1.8 V SDRAM Dual Inline Memory Module (DIMM) sockets

• 533/400 MHz single or dual channel DDR2 SDRAM interface

• Designed to support up to 4 GB of system memory

NOTE: System resources (such as PCI and PCI Express*) require physical memory

address locations that reduce available memory addresses above 3 GB. This may result in less than 4 GB of memory being available to the operating system and applications. For the latest list of tested memory, refer to the Intel World Wide Web site at: http://support.intel.com/support/motherboards/desktop/

Intel® 915G Express Chipset consisting of:

• Intel

• Firmware Hub (FWH)

Intel 915G Express Chipset with Intel® Graphics Media Accelerator 900

• Intel 915G Express Chipset

• Intel

• Realtek codec

Desktop boards D915GAV and D915GEV:

• Four PCI bus add-in card connectors (SMBus routed to PCI bus 2)

• One PCI Express x16 connector and two PCI Express x1 connectors

Desktop boards D915GAG and D915GUX:

• Two PCI bus add-in card connectors (SMBus routed to PCI bus 2)

• One PCI Express x16 connector and one PCI Express x1 connector

82915G Graphics and Memory Controller Hub (GMCH) with Direct Media

Interface

82801FB I/O Controller Hub (ICH6)

High Definition Audio

continued

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Table 1. Feature Summary (continued)

Peripheral Interfaces

BIOS

Power Management

Hardware Management Hardware monitor with:

Security (Optional) Trusted Platform Module (Optional)

• Up to eight USB 2.0 ports

⎯ Four ports routed to the back panel

⎯ Four ports routed to two USB headers

• Four Serial ATA (SATA) channels, via the ICH6, one device per channel

• One IDE interface with ATA-66/100 support (two devices)

• One diskette drive interface

• One parallel port

• One serial port

• PS/2* keyboard and mouse ports

• Intel/AMI BIOS

• 4 Mbit symmetrical flash memory

• Support for SMBIOS

• Intel

• Intel® Express BIOS Update

• Support for Advanced Configuration and Power Interface (ACPI)

• Suspend to RAM (STR)

• Wake on USB, PCI, PCI Express, PS/2, LAN, and front panel

• Three fan sensing inputs used to monitor fan activity

• Remote diode temperature sensing

• Intel® Precision Cooling Technology fan speed control that automatically

• Voltage sensing to detect out of range values

Rapid BIOS Boot

adjusts processor fan speed based on processor temperature and chassis fan speeds based on system temperature

Related Links:

For more information about Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG, including the Technical Product Specification (TPS), BIOS updates, and device drivers, go to:

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

Manufacturing Options

Table 2 shows the manufacturing options for Desktop Board D915GEV/D915GUX/ D915GAV/D915GAG.

Table 2. Manufacturing Options

Option Description

LAN

Gigabit LAN

Gigabit LAN and TPM

Intel® 82562EZ 10/100 Mbit/sec Platform LAN Connect (PLC) device with RJ-45 connector

• Marvell* 88E8050 PCI Express Gigabit Ethernet Controller (10/100/1000 Mbit/sec ) with RJ-45 connector

• Infineon* Trusted Platform Module

Supported Operating Systems

Desktop Board Features

The desktop board supports the following operating systems:

• Microsoft Windows* 2000

• Microsoft Windows XP

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Desktop Board Components

Figure 1 shows the approximate location of the major components on desktop boards D915GAV and D915GEV.

Line In

RJ45

Channel A

DIMM 0 DIMM 1

Channel B

DIMM 0 DIMM 1

OM16860

Figure 1. Desktop Boards D915GAV and D915GEV Components

Table 3. Desktop Boards D915GAV and D915GEV Components

Label Description

A Front panel audio header

B PCI Express x16 connector

C Rear chassis fan header 1 (fan speed control)

D Alternate power connector (1x4)

E 12 V processor core voltage connector (2x2)

F Processor socket

G Processor fan header (4-pin, fan speed control)

H Main power connector (2x12)

I Diskette drive connector

J Primary IDE connector

K Battery

L Chassis intrusion header

M BIOS configuration jumper

N Trusted Platform Module (optional)

O Front chassis fan header (fan speed control)

P Serial ATA connectors (four)

Q Power LED header

R Front panel header

S USB 2.0 headers

T PCI bus add-in card connectors

U Speaker

V PCI Express x1 connectors

W Rear chassis fan header 2 (always on)

Desktop Board Features

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Figure 2 shows the approximate location of the major components on desktop boards D915GAG and D915GUX.

Line In

RJ45

D E

Channel A

Channel B

DIMM 0 DIMM 1

OM16861

Figure 2. Intel Desktop Boards D915GUX and D915GAG Components

Table 4. Desktop Boards D915GAG and D915GUX Components

Label Description

A Front panel audio header

B PCI Express x16 connector

C Rear chassis fan header (fan speed control)

D Alternate power connector (1x4)

E 12 V processor core voltage connector (2x2)

F Processor socket

G Processor fan header (4-pin, fan speed control)

H Main power connector (2x12)

I Diskette drive connector

J Primary IDE connector

K Battery

L Chassis intrusion header

M BIOS configuration jumper

N Trusted Platform Module (optional)

O Front chassis fan header (fan speed control)

P Serial ATA connectors (four)

Q Power LED header

R Front panel header

S USB 2.0 headers

T PCI bus add-in card connectors

U Speaker

V PCI Express x1 connector

Desktop Board Features

Related Links:

Go to the following links for more information about:

• Intel Desktop Board

D915GEV/D915GUX/

http://www.intel.com/design/motherbd http://support.intel.com/support/motherboards/desktop

D915GAV/D915GAG

• Supported processors

• Audio software and utilities

• LAN software and drivers

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

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

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Processor

CAUTION

Failure to use an ATX12V power supply, or not connecting the 12 V (2x2) processor core voltage power supply connector to Desktop Board D915GEV/D915GUX/D915GAV/D915GAG may result in damage to the desktop board and/or power supply.

Desktop Boards D915GEV, D915GUX, D915GAV, and D915GAG support a single Intel Pentium 4 processor in the LGA775 package. Processors are not included with the desktop board and must be purchased separately. The processor connects to the Intel desktop board through the LGA775 socket.

The supported processors list for Desktop Boards D915GEV, D915GUX, D915GAV, and D915GAG is located on the web at:

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

Related Links:

Go to the following links or pages for more information about:

• Supported Intel processors for Desktop Board D915GEV/D915GUX/D915GAV/D915GAG

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

• Instructions on installing or upgrading the processor, page 32 in Chapter 2

• The location of the two power connectors, page 48 in Chapter 2

Desktop Board Features

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.

The desktop board supports dual or single channel memory configurations.

Desktop boards D915GAV and D915GAG support dual or single channel memory configurations defined in Table 5.

Table 5. Desktop Board D915GAV/D915GAG Memory Configurations

Memory Speed Processor FSB frequency (MHz) Memory Speed Outcome (MHz)

800 400 DDR 400 Pentium 4 processor

533 400

800 333 DDR 333 Pentium 4 processor

533 333

Desktop boards D915GAV and D915GAG support:

• Four 184-pin Double Data Rate (DDR) SDRAM Dual Inline Memory Module (DIMMs)

connectors with gold-plated contacts

• Unbuffered, non-registered single or double-sided DIMMs

• Serial Presence Detect (SPD) memory only

• Non-ECC RAM

• 2.5 V memory

• Memory configuration listed below: ⎯ Up to 1.0 GB utilizing 128 Mb technology ⎯ Up to 2.0 GB utilizing 256 Mb technology ⎯ Up to 4.0 GB utilizing 512 Mb or 1 GB technology

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Desktop boards D915GEV and D915GUX support dual or single channel memory configurations defined in Table 6.

Table 6. Desktop Board D915GEV/D915GUX Memory Configurations

Memory Speed Processor FSB frequency (MHz) Memory Speed Outcome (MHz)

800 533 DDR2 533 Pentium 4 processor

533 533

800 400 DDR2 400 Pentium 4 processor

533 400

Desktop boards D915GEV and D915GUX support:

• Four 240-pin Double Data Rate 2 (DDR2) SDRAM Dual Inline Memory Module (DIMMs) connectors with gold-plated contacts

• Unbuffered, non-registered single or double-sided DIMMs

• Serial Presence Detect (SPD) memory only

• Non-ECC RAM

• 1.8 V memory

• Memory configuration listed below: ⎯ Up to 2.0 GB utilizing 256 Mb technology ⎯ Up to 4.0 GB utilizing 512 Mb or 1 GB technology

NOTE

System resources (such as PCI and PCI Express) require physical memory address locations that reduce available memory addresses above 3 GB. This may result in less than 4 GB of memory being available to the operating system and applications.

Related Links:

Go to the following links or pages for more information about:

• The latest list of tested memory, http://support.intel.com/support/motherboards/desktop/

• SDRAM specifications, http://www.intel.com/technology/memory/pcsdram/spec/

• Installing memory, page 36 in Chapter 2

Intel® 915G Express Chipset

The Intel 915G Express Chipset consists of the following devices:

• Intel 82915G Graphics and Memory Controller Hub (GMCH) with Digital Media Interface

• Intel 82801FB I/O Controller Hub (ICH6)

• Firmware Hub (FWH)

Related Links:

Go to the following link or pages for more information about:

• Audio drivers and utilities http://support.intel.com/support/motherboards/desktop/

• Installing the front panel audio solution, page 45 in Chapter 2

• The location of audio connectors, page Figure 23 on page 47

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Input/Output (I/O) Controller

The super I/O controller features the following:

• Low pin count (LPC) interface

• One serial port

• 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 or 1.44 MB diskette drive

• Intelligent power management, including a programmable wake up event interface

• PCI power management support

LAN Subsystem (Optional)

The optional LAN, with the Intel 82801FB (ICH6), provides a Fast PCI LAN subsystem. The LAN subsystem provides the following functions:

• Basic 10/100 Ethernet LAN (Intel 82562EZ) or Marvell 10/100/1000 Gigabit Ethernet LAN

• Support for 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 D915GEV/D915GUX/D915GAV/D915GAG link on Intel’s World Wide Web site at:

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

RJ-45 LAN Connector LEDs

Two LEDs are built into the RJ-45 LAN connector (see Figure 3).

OM17386

Figure 3. Back Panel LAN Connector LED Locations

Desktop Board Features

Table 7 describes the LED states when the board is powered up and the 10/100 Ethernet LAN subsystem is operating.

Table 7. RJ-45 10/100 Ethernet LAN Connector LEDs

LED Color LED State Indicates

Off LAN link is not established. Green

On LAN link is established.

Blinking LAN activity is occurring.

Off 10 Mbits/sec data rate is selected. Yellow

On (steady state) 100 Mbits/sec data rate is selected.

Table 8 describes the LED states when the board is powered up and the 10/100/1000 Gigabit Ethernet LAN subsystem is operating.

Table 8. RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs

LED Color LED State Indicates

Off 10 Mbit/sec data rate is selected. Bi-color LED

Green 100 Mbit/sec data rate is selected.

Yellow 1 Gbit/sec data rate is selected.

Off LAN link is not established. Green

On (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.

The desktop board supports up to eight USB 2.0 ports via ICH6; four ports routed to the back panel and four routed to two internal USB 2.0 headers. 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.

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Enhanced IDE Interface

The ICH6’s IDE interface handles the exchange of information between the processor and

peripheral devices like hard disks, CD-ROM drives, and Iomega Zip The interface supports:

• Up to two IDE devices (such as hard drives)

• ATAPI-style devices (such as CD-ROM drives)

• Older PIO Mode devices

• Ultra DMA-33 and ATA-66/100 protocols

• Laser Servo (LS-120) drives

drives inside the computer.

Serial ATA

The desktop boards support four Serial ATA channels via ICH6, connecting one device per channel.

Expandability

The desktop boards support the following:

• Desktop boards D915GAV and D915GEV ⎯ One PCI Express x16 add-in card ⎯ Two PCI Express x1 add-in cards ⎯ Four PCI add-in cards

• Desktop boards D915GAG and D915GUX: ⎯ One PCI Express x16 add-in card ⎯ One PCI Express x1 add-in card ⎯ Two PCI add-in cards

Related Links:

For information about installing the PCI Express x16 card, see page 41 in Chapter 2.

BIOS

The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI/PCI Express 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 on page 59 in Chapter 3.

Serial ATA and IDE Auto Configuration

If you install a Serial ATA or IDE device (such as a hard drive) in your computer, the autoconfiguration 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 a Serial ATA or IDE device. You can override the auto-configuration options by specifying manual configuration in the BIOS Setup program.

Desktop Board Features

PCI and PCI Express Auto Configuration

If you install a PCI/PCI Express add-in card in your computer, the PCI/PCI Express autoconfiguration 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/PCI Express add-in card.

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 BIOS 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.

Chassis Intrusion

The board supports a chassis security feature that detects if the chassis cover has been removed. The security feature uses a mechanical switch on the chassis that can be connected to the chassis intrusion header on the desktop board. See Figure 22 on page 44 for the location of the chassis intrusion header.

Power Management Features

Power management is implemented at several levels, including:

• Advanced Configuration and Power Interface (ACPI)

• Hardware support: ⎯ Power connectors ⎯ Fan connectors ⎯ Suspend to RAM (Instantly Available PC technology) ⎯ Resume on Ring ⎯ Wake from USB ⎯ Wake from PS/2 keyboard/mouse ⎯ PME# wakeup support

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 board requires an operating system that provides full ACPI support.

Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG Product Guide

Power Connectors

The desktop boards have three power connectors. See Figure 25 on page 49 and Figure 26 on page 50 for the location of the power connectors.

Fan Connectors

The desktop boards have a 4-pin processor fan header.

Desktop boards D915GAV and D915GEV have three chassis fan headers. Desktop boards D915GAG and D915GUX have two chassis fan headers. See Figure 24 on page 48 for the location of the fan headers.

Fan Speed Control (Intel® Precision Cooling Technology)

Intel Precision Cooling Technology automatically adjusts the processor fan speed based on the processor thermal diode temperature and adjusts the chassis fan speeds depending on the system temperature. System fan noise may be reduced by operating controlled chassis and processor fans at the minimum necessary speeds.

NOTE

Not all chassis fan headers on desktop boards D915GEV and D915GAV are controlled. Refer to Table 3 on page 13 to identify controlled chassis fan headers.

The processor and chassis fan speed control features can be disabled independently through the desktop board BIOS. Disabling the processor fan speed control will result in the fan operating at full speed if it is not a self controlled fan. It is recommended that processor fan speed control remain enabled (default BIOS setting) when using the processor fan heat-sink included with Intel boxed processors. Disabling the chassis fan speed control results in chassis fans always operating at full speed. The chassis fan speed control feature should be disabled if a self-controlled chassis fan is attached to any controlled chassis fan header.

The overall system noise reduction will vary based on system configuration and environment.

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.

CAUTION

Power supplies used with this desktop 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 desktop board may lose register settings stored in memory.

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