Intel BOXD925XEBC2LK - Desktop Board D925XEBC2LK, D925XEBC2, D925XEBC2LK - Desktop Board Motherboard, D925XECV2 User Manual

Intel® Desktop Boards D925XECV2/D925XEBC2

Technical Product Specification

The Intel® Desktop Boards D925XECV2/D925XEBC2 may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized errata are documented in the Intel Desktop Boards D925XECV2/D925XEBC2 Specification Update.

October 2004 Order Number: C90152-001

Revision History

Revision Revision History Date

-001 First release of the Intel® Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

October 2004

This product specification applies to only standard Intel

Desktop Boards D925XECV2 and

D925XEBC2 with BIOS identifier CV92510A.86A. Changes to this specification will be published in the Intel Desktop Boards

D925XECV2/D925XEBC2 Specification Update before being incorporated into a revision of this document.

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 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 Corporation may have patents or pending patent applications, trademarks, copyrights, or other intellectual property rights that relate to the presented subject matter. The furnishing of documents and other materials and information does not provide any license, express or implied, by estoppel or otherwise, to any such patents, trademarks, copyrights, or other intellectual property rights.

Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked “reserved” or “undefined.”

Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.

Intel

desktop boards 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.

PRODUCTS INCLUDING LIABILITY OR WARRANTIES

Contact your local Intel sales office or your distributor to obtain the latest specifications 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

P.O. Box 5937 Denver, CO 80217-9808

or call in North America 1-800-548-4725, Europe 44-0-1793-431-155, France 44-0-1793-421-777, Germany 44-0-1793-421-333, other Countries 708-296-9333.

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

Preface

This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for these Intel D925XECV2 and D925XEBC2. It describes the standard product and available manufacturing options.

Intended Audience

The TPS is intended to provide detailed, technical information about the Desktop Boards D925XECV2 and D925XEBC2 and their components to the vendors, system integrators, and other engineers and technicians who need this level of information. It is specifically not intended for general audiences.

What This Document Contains

Desktop Boards:

Chapter Description

1 A description of the hardware used on the Desktop Boards D925XECV2 and

D925XEBC2 2 A map of the resources of the Desktop Boards 3 The features supported by the BIOS Setup program 4 A description of the BIOS error messages, beep codes, and POST codes

Typographical Conventions

This section contains information about the conventions used in this specification. Not all of these symbols and abbreviations appear in all specifications of this type.

Notes, Cautions, and Warnings



NOTE

Notes call attention to important information.

INTEGRATOR’S NOTES

Integrator’s notes are used to call attention to information that may be useful to system integrators.

CAUTION

Cautions are included to help you avoid damaging hardware or losing data.

iii

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

WARNING

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

Other Common Notation

# Used after a signal name to identify an active-low signal (such as USBP0#) (NxnX) When used in the description of a component, N indicates component type, xn are the relative

coordinates of its location on the Desktop Boards D925XECV2 and D925XEBC2, and X is the instance of the particular part at that general location. For example, J5J1 is a connector,

located at 5J. It is the first connector in the 5J area. GB Gigabyte (1,073,741,824 bytes) GB/sec Gigabytes per second KB Kilobyte (1024 bytes) Kbit Kilobit (1024 bits) kbits/sec 1000 bits per second MB Megabyte (1,048,576 bytes) MB/sec Megabytes per second Mbit Megabit (1,048,576 bits) Mbit/sec Megabits per second xxh An address or data value ending with a lowercase h indicates a hexadecimal value. x.x V Volts. Voltages are DC unless otherwise specified. * This symbol is used to indicate third-party brands and names that are the property of their

respective owners.

Contents

1 Product Description

1.1 PCI Bus Terminology Change......................................................................................11

1.2 Board Differences ........................................................................................................11

1.3 Overview......................................................................................................................12

1.3.1 Feature Summary..........................................................................................12

1.3.2 Manufacturing Options ..................................................................................13

1.3.3 Board Layouts ...............................................................................................14

1.3.4 Block Diagram...............................................................................................18

1.4 Online Support.............................................................................................................19

1.5 Processor.....................................................................................................................19

1.6 System Memory...........................................................................................................20

1.6.1 Memory Configurations .................................................................................21

1.7 Intel® 925XE Chipset ...................................................................................................25

1.7.1 USB...............................................................................................................25

1.7.2 IDE Support...................................................................................................25

1.7.3 Real-Time Clock, CMOS SRAM, and Battery................................................28

1.8 PCI Express Connectors..............................................................................................28

1.9 Auxiliary Power (AUX PWR) Output Connector...........................................................28

1.10 I/O Controller................................................................................................................29

1.10.1 Serial Port......................................................................................................29

1.10.2 Parallel Port...................................................................................................29

1.10.3 Diskette Drive Controller................................................................................30

1.10.4 Keyboard and Mouse Interface .....................................................................30

1.11 Audio Subsystem .........................................................................................................31

1.11.1 Audio Subsystem Software ...........................................................................31

1.11.2 Audio Connectors..........................................................................................31

1.11.3 8-Channel (7.1) Audio Subsystem.................................................................32

1.11.4 6-Channel (5.1) Audio Subsystem.................................................................34

1.12 LAN Subsystem ...........................................................................................................35

1.12.1 Marvell Yukon 88E8050 PCI Express 1.0a Integrated MAC/PHY

Gigabit Ethernet Controller............................................................................35

1.12.2 RJ-45 LAN Connector with Integrated LEDs.................................................35

1.12.3 Alert Standard Format (ASF) Support...........................................................36

1.12.4 LAN Subsystem Software..............................................................................36

1.13 Hardware Management Subsystem.............................................................................37

1.13.1 Hardware Monitoring and Fan Control ASIC.................................................37

1.13.2 Thermal Monitoring........................................................................................38

1.13.3 Fan Monitoring...............................................................................................40

1.13.4 Chassis Intrusion and Detection....................................................................40

1.14 Power Management.....................................................................................................40

1.14.1 ACPI..............................................................................................................40

1.14.2 Hardware Support .........................................................................................43

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

1.15 Trusted Platform Module (Optional).............................................................................47

1.15.1 System Requirements...................................................................................47

1.15.2 Warning of Potential Data Loss.....................................................................47

1.15.3 Security Precautions......................................................................................48

1.15.4 Trusted Platform Module Ownership.............................................................49

1.15.5 Enabling the Trusted Platform Module..........................................................50

1.15.6 Assuming Trusted Platform Module Ownership............................................50

1.15.7 Recovery Procedures....................................................................................51

1.15.8 Clearing Trusted Platform Module Ownership...............................................52

1.15.9 Software Support...........................................................................................53

2 Technical Reference

2.1 Introduction ..................................................................................................................55

2.2 Memory Resources......................................................................................................55

2.2.1 Addressable Memory.....................................................................................55

2.2.2 Memory Map..................................................................................................57

2.3 DMA Channels.............................................................................................................57

2.4 Fixed I/O Map...............................................................................................................58

2.5 PCI Configuration Space Map......................................................................................59

2.6 Interrupts......................................................................................................................60

2.7 PCI Conventional Interrupt Routing Map .....................................................................61

2.8 Connectors...................................................................................................................63

2.8.1 Back Panel Connectors.................................................................................63

2.8.2 Component-side Connectors.........................................................................68

2.9 Jumper Block ...............................................................................................................80

2.10 Mechanical Considerations..........................................................................................81

2.10.1 D925XECV2 Form Factor..............................................................................81

2.10.2 D925XEBC2 Form Factor..............................................................................82

2.10.3 I/O Shield.......................................................................................................83

2.11 Electrical Considerations..............................................................................................85

2.11.1 DC Loading....................................................................................................85

2.11.2 Add-in Board Considerations.........................................................................85

2.11.3 Fan Connector Current Capability.................................................................86

2.11.4 Power Supply Considerations .......................................................................86

2.12 Thermal Considerations...............................................................................................87

2.13 Reliability......................................................................................................................89

2.14 Environmental ..............................................................................................................90

2.15 Regulatory Compliance................................................................................................91

2.15.1 Safety Regulations ........................................................................................91

2.15.2 EMC Regulations...........................................................................................91

2.15.3 European Union Declaration of Conformity Statement..................................92

2.15.4 Product Ecology Statements.........................................................................93

2.15.5 Product Certification Markings (Board Level)................................................94

3 Overview of BIOS Features

3.1 Introduction ..................................................................................................................95

3.2 BIOS Flash Memory Organization ...............................................................................96

3.3 Resource Configuration ...............................................................................................96

3.3.1 PCI Autoconfiguration....................................................................................96

3.3.2 PCI IDE Support............................................................................................96

3.4 System Management BIOS (SMBIOS) ........................................................................97

3.5 Legacy USB Support....................................................................................................97

3.6 BIOS Updates..............................................................................................................98

3.6.1 Language Support.........................................................................................98

3.6.2 Custom Splash Screen..................................................................................98

3.7 Boot Options ................................................................................................................99

3.7.1 CD-ROM Boot ...............................................................................................99

3.7.2 Network Boot.................................................................................................99

3.7.3 Booting Without Attached Devices................................................................99

3.7.4 Changing the Default Boot Device During POST..........................................99

3.8 Fast Booting Systems with Intel® Rapid BIOS Boot...................................................100

3.8.1 Peripheral Selection and Configuration.......................................................100

3.8.2 Intel Rapid BIOS Boot .................................................................................100

3.9 BIOS Security Features .............................................................................................101

Contents

4 Error Messages and Beep Codes

4.1 BIOS Error Messages................................................................................................103

4.2 Port 80h POST Codes ...............................................................................................105

4.3 Bus Initialization Checkpoints ....................................................................................109

4.4 Speaker ..................................................................................................................... 110

4.5 BIOS Beep Codes......................................................................................................110

Figures

1. Desktop Board D925XECV2 Components...................................................................14

2. Desktop Board D925XEBC2 Components...................................................................16

3. Block Diagram..............................................................................................................18

4. Memory Channel and DIMM Configuration..................................................................21

5. Dual Channel (Interleaved) Mode Configuration with Two DIMMs ..............................22

6. Dual Channel (Interleaved) Mode Configuration with Three DIMMs............................22

7. Dual Channel (Interleaved) Mode Configuration with Four DIMMs..............................23

8. Single Channel (Asymmetric) Mode Configuration with One DIMM.............................24

9. Single Channel (Asymmetric) Mode Configuration with Three DIMMs........................24

10. Front/Back Panel Audio Connector Options for 8-Channel (7.1) Audio Subsystem....32

11. 8-channel (7.1) Audio Subsystem Block Diagram........................................................33

12. Front/Back Panel Audio Connector Options for 6-Channel (5.1) Audio Subsystem....34

13. 6-Channel (5.1) Audio Subsystem Block Diagram.......................................................34

14. LAN Connector LED Locations....................................................................................35

15. Thermal Monitoring for D925XECV2 Board.................................................................38

16. Thermal Monitoring for D925XEBC2 Board.................................................................39

17. Location of the Standby Power Indicator LED on the D925XECV2 Board ..................46

18. Detailed System Memory Address Map.......................................................................56

19. Back Panel Connectors for 8-Channel (7.1) Audio Subsystem ...................................64

vii

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

20. Back Panel Connectors for 6-Channel (5.1) Audio Subsystem ...................................66

21. D925XECV2 Component-side Connectors..................................................................68

22. D925XEBC2 Component-side Connectors..................................................................70

23. Connection Diagram for Front Panel Connector..........................................................77

24. Connection Diagram for Front Panel USB Connectors................................................78

25. Connection Diagram for IEEE 1394a Connectors........................................................79

26. Location of the Jumper Block.......................................................................................80

27. Desktop Board D925XECV2 Dimensions....................................................................81

28. Desktop Board D925XEBC2 Dimensions....................................................................82

29. I/O Shield Dimensions for Boards with the 8-Channel (7.1) Audio Subsystem............83

30. I/O Shield Dimensions for Boards with the 6-Channel (5.1) Audio Subsystem............84

31. Processor Heatsink for Omni-directional Airflow..........................................................87

32. Localized High Temperature Zones.............................................................................88

Tables

1. Summary of Board Differences....................................................................................11

2. Feature Summary ........................................................................................................12

3. Manufacturing Options.................................................................................................13

4. D925XECV2 Components Shown in Figure 1. ............................................................15

5. D925XEBC2 Components Shown in Figure 2. ............................................................17

6. Supported Memory Configurations ..............................................................................20

7. LAN Connector LED States .........................................................................................35

8. Effects of Pressing the Power Switch ..........................................................................41

9. Power States and Targeted System Power .................................................................42

10. Wake-up Devices and Events......................................................................................43

11. System Memory Map ...................................................................................................57

12. DMA Channels.............................................................................................................57

13. I/O Map ........................................................................................................................58

14. PCI Configuration Space Map......................................................................................59

15. Interrupts......................................................................................................................60

16. PCI Interrupt Routing Map ...........................................................................................62

17. Back Panel Connectors Shown in Figure 19................................................................65

18. Back Panel Connectors Shown in Figure 20................................................................67

19. D925XECV2 Component-side Connectors Shown in Figure 21..................................69

20. D925XEBC2 Component-side Connectors Shown in Figure 22..................................71

21. ATAPI CD-ROM Connector (Optional).........................................................................72

22. Front Panel Audio Connector.......................................................................................72

23. Front Chassis Fan and Rear Chassis Fan Connectors...............................................72

24. Processor Fan Connector and Auxiliary Rear Fan Connector....................................72

25. Chassis Intrusion Connector........................................................................................73

26. SCSI Hard Drive Activity LED Connector (Optional)....................................................73

27. Serial ATA Connectors.................................................................................................73

28. Auxiliary Power Output Connector...............................................................................73

29. Main Power Connector.................................................................................................75

30. ATX12V Power Connector...........................................................................................75

31. Alternate Power Connector..........................................................................................75

32. Auxiliary Front Panel Power/Sleep LED Connector.....................................................76

33. Front Panel Connector.................................................................................................76

34. States for a One-Color Power LED..............................................................................77

35. States for a Two-Color Power LED..............................................................................77

viii

Contents

36. BIOS Setup Configuration Jumper Settings.................................................................80

37. DC Loading Characteristics .........................................................................................85

38. Fan Connector Current Capability................................................................................86

39. Thermal Considerations for Components ....................................................................89

40. Desktop Board D925XECV2/D925XEBC2 Environmental Specifications....................90

41. Safety Regulations.......................................................................................................91

42. EMC Regulations.........................................................................................................91

43. Product Certification Markings.....................................................................................94

44. BIOS Setup Program Menu Bar...................................................................................96

45. BIOS Setup Program Function Keys............................................................................96

46. Boot Device Menu Options ..........................................................................................99

47. Supervisor and User Password Functions.................................................................101

48. BIOS Error Messages................................................................................................103

49. Uncompressed INIT Code Checkpoints.....................................................................105

50. Boot Block Recovery Code Checkpoints ...................................................................105

51. Runtime Code Uncompressed in F000 Shadow RAM...............................................106

52. Bus Initialization Checkpoints ....................................................................................109

53. Upper Nibble High Byte Functions.............................................................................109

54. Lower Nibble High Byte Functions.............................................................................110

55. Beep Codes ...............................................................................................................110

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

1 Product Description

What This Chapter Contains

1.1 PCI Bus Terminology Change......................................................................................11

1.2 Board Differences ........................................................................................................11

1.3 Overview......................................................................................................................12

1.4 Online Support.............................................................................................................19

1.5 Processor.....................................................................................................................19

1.6 System Memory...........................................................................................................20

1.7 Intel® 925X Chipset......................................................................................................25

1.8 PCI Express Connectors..............................................................................................28

1.9 Auxiliary Power (AUX PWR) Output Connector...........................................................28

1.10 I/O Controller................................................................................................................29

1.11 Audio Subsystem .........................................................................................................31

1.12 LAN Subsystem ...........................................................................................................35

1.13 Hardware Management Subsystem.............................................................................37

1.14 Power Management.....................................................................................................40

1.1 PCI Bus Terminology Change

Previous generations of Intel® Desktop Boards used an add-in card connector referred to as PCI. This generation of Intel Desktop Boards adds a new technology for add-in cards: PCI Express*. The 32-bit parallel bus previously referred to as PCI is now called PCI Conventional.

1.2 Board Differences

This TPS describes these Intel Desktop Boards: D925XECV2 and D925XEBC2. The Desktop Boards are identical with the exception of the items listed in Table 1.

Table 1. Summary of Board Differences

D925XECV2

D925XEBC2

• ATX Form Factor (10.20 inches by 9.60 inches [259.08 millimeters by

243.84 millimeters])

• Four PCI Conventional bus add-in card connectors

• Two PCI Express x1 bus add-in card connectors

• Auxiliary rear fan connector

• Option for auxiliary power output connector

• Option for SCSI hard drive indicator LED

• Option for Trusted Platform Module (TPM)

• microATX Form Factor (9.60 inches by 9.60 inches [243.84 millimeters by

243.84 millimeters])

• Two PCI Conventional bus add-in card connectors

• One PCI Express x1 bus add-in card connector

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification



NOTE

Most of the illustrations in this document show only the Desktop Board D925XECV2. When there are significant differences, illustrations of both boards are provided.

1.3 Overview

1.3.1 Feature Summary

Table 2 summarizes the major features of the Desktop Boards D925XECV2 and D925XEBC2.

Table 2. Feature Summary

Form Factor

Processor

Memory

Chipset

Video Audio I/O Control USB Peripheral

Interfaces

BIOS

Instantly Available PC Technology

• D925XECV2: ATX (10.20 inches by 9.60 inches [259.08 millimeters by

243.84 millimeters])

• D925XEBC2: microATX (9.60 inches by 9.60 inches [243.84 millimeters by

243.84 millimeters])

Support for an Intel® Pentium® 4 processor in an LGA775 socket with a 1066, 800, or 533 MHz system bus

• Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets

• Support for DDR2 400 MHz and DDR2 533 MHz DIMMs

• Support for up to 4 GB of system memory

• Support for 1.9 V DIMMs with 3-3-3 memory timing

Intel® 925XE Chipset, consisting of:

• Intel® 82925XE Memory Controller Hub (MCH)

• Intel® 82801FR I/O Controller Hub (ICH6-R)

• 8 Mbit Firmware Hub (FWH)

One PCI Express x16 connector supporting PCI Express x16 graphics cards

High Definition Audio subsystem

Intel LPC Bus I/O controller Support for USB 2.0 devices

• Eight USB ports

• One serial port

• One parallel port

• Four Serial ATA interfaces

• One Parallel ATA IDE interface with UDMA 33, ATA-66/100 support

• One diskette drive interface

• PS/2* keyboard and mouse ports

• Intel/AMI BIOS (resident in the 8 Mbit FWH)

• Support for Advanced Configuration and Power Interface (ACPI), Plug and Play,

and SMBIOS

• Support for PCI Local Bus Specification Revision 2.2

• Support for PCI Express Revision 1.0a

• Suspend to RAM support

• Wake on PCI, RS-232, front panel, PS/2 devices, and USB ports

continued

Product Description

Table 2. Feature Summary (continued)

LAN Support

Expansion Capabilities

Hardware Monitor Subsystem

Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Marvell* Yukon* 88E8050 PCI Express Gigabit Ethernet Controller

• D925XECV2: Four PCI Conventional bus add-in card connectors (SMBus routed to PCI Conventional bus connector 2), two PCI Express x1 bus add-in card connectors, and one PCI Express x16 bus add-in card connector

• D925XEBC2: Two PCI Conventional bus add-in card connectors (SMBus routed to PCI Conventional bus connector 2), one PCI Express x1 bus add-in card connector, and one PCI Express x16 bus add-in card connector

• Hardware monitoring and fan control ASIC

• Voltage sense to detect out of range power supply voltages

• Thermal sense to detect out of range thermal values

• Three fan connectors

• Three fan sense inputs used to monitor fan activity

• Fan speed control

1.3.2 Manufacturing Options

Table 3 describes the manufacturing options on the Desktop Boards D925XECV2 and D925XEBC2. Not every manufacturing option is available in all marketing channels. Please contact your Intel representative to determine which manufacturing options are available to you.

Table 3. Manufacturing Options

Audio Subsystem

Alternate (ALT) Power Input Connector

ATAPI CD-ROM connector

Auxiliary (AUX) Power Output Connector

IEEE-1394a Interface

SCSI Hard Drive Activity LED Connector

Trusted Platform Module (TPM)

For information about Refer to

Available configurations for the Desktop Boards D925XECV2 and D925XEBC2 Section 1.4, page 19

Intel High Definition Audio subsystem in one of the following configurations:

• 8-channel (7.1) audio subsystem with five analog audio outputs and two S/PDIF

• 6-channel (5.1) audio subsystem with three analog audio outputs using the

Provides required additional power when using a power supply with a 20-pin (2x10) main power connector. Not required when using a power supply with a 24-pin (2x12) main power connector.

A 1 x 4-pin ATAPI-style connector for connecting an internal ATAPI CD-ROM drive to the audio mixer

Provides power for internal chassis lighting (D925XECV2 board only)

IEEE-1394a controller and three IEEE-1394a connectors (one back panel connector, two front-panel connectors)

Allows add-in hard drive controllers (SCSI or other) to use the same LED as the onboard IDE controller. (D925XECV2 board only)

A component that enhances platform security (D925XECV2 board only)

digital audio outputs (coaxial and optical) using the Realtek ALC880 audio codec

Realtek ALC860 audio codec

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

1.3.3 Board Layouts

Figure 1 shows the location of the major components on the Desktop Board D925XECV2.

E F G HA C

I JB D

N O

ZBB

Figure 1. Desktop Board D925XECV2 Components

Table 4 lists the D925XECV2 components identified in Figure 1.

RSTUCC VWAAXY

OM16676

Table 4. D925XECV2 Components Shown in Figure 1

Item/callout from Figure 1 Description

A B C D E F G H

J K L

M N O

Q R

S T

X Y Z

AA BB CC DD EE

FF GG HH

Auxiliary rear fan connector ATAPI CD-ROM connector (optional) PCI Express x1 bus add-in card connectors Audio codec Front panel audio connector PCI Conventional bus add-in card connectors Marvell Yukon 88E8050 PCI Express Gigabit Ethernet Controller PCI Express x16 bus add-in card connector Rear chassis fan connector Back panel connectors Alternate power connector +12V power connector (ATX12V) LGA775 processor socket Processor fan connector Intel 82925XE MCH DIMM Channel A sockets DIMM Channel B sockets I/O controller Power connector Diskette drive connector Parallel ATE IDE connector Battery Chassis intrusion connector BIOS Setup configuration jumper block 8 Mbit Firmware Hub (FWH) Front chassis fan connector Serial ATA connectors Auxiliary front panel power LED connector Front panel connector SCSI hard drive indicator LED (optional) Auxiliary power output connector (optional) Front panel USB connector TPM component (optional) Front panel USB connector Intel 82801FR I/O Controller Hub (ICH6-R) Front panel IEEE-1394a connectors (optional) IEEE-1394a controller (optional) Speaker PCI Conventional bus add-in card connectors

Product Description

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

Figure 2 shows the location of the major components on the Desktop Board D925XEBC2.

EE DD CC

B C D E

F GA

K L

Figure 2. Desktop Board D925XEBC2 Components

Table 5 lists the D925XECV2 components identified in Figure 2.

OPQRSTXUV

OM16686

Table 5. D925XEBC2 Components Shown in Figure 2

Item/callout from Figure 2 Description

B C D

F G H

J K L

M N O

Q R

S T

X Y Z

BB CC DD

FF GG HH

Audio codec Front panel audio connector PCI Conventional bus add-in card connectors Marvell Yukon 88E8050 PCI Express Gigabit Ethernet Controller PCI Express x16 bus add-in card connector Rear chassis fan connector Back panel connectors Alternate power connector +12V power connector (ATX12V) LGA775 processor socket Processor fan connector Intel 82925XE MCH DIMM Channel A sockets DIMM Channel B sockets I/O controller Power connector Diskette drive connector Parallel ATE IDE connector Battery Chassis intrusion connector BIOS Setup configuration jumper block 8 Mbit Firmware Hub (FWH) Front chassis fan connector Serial ATA connectors Auxiliary front panel power LED connector Front panel connector Front panel USB connector Front panel USB connector Intel 82801FR I/O Controller Hub (ICH6-R) Front panel IEEE-1394a connectors (optional) IEEE-1394a controller (optional) Speaker ATAPI CD-ROM connector (optional) PCI Express x1 bus add-in card connector

Product Description

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

1.3.4 Block Diagram

Figure 3 is a block diagram of the major functional areas of the boards.

PCI Express x1 Slot 1

PCI Express x1 Slot 2

Parallel ATA

IDE Connector

LGA775

Processor Socket

PCI Express

x16 Interface

PCI Express

x16

Connector

Channel A DIMMs (2)

PCI Express x1 Interface

D925XECV2

only

Parallel ATA

IDE Interface

System Bus

(1066/800/533 MHz)

Intel 82925XE

Memory Controller

Hub (MCH)

Dual-Channel

Memory Bus

SMBus

Gigabit Ethernet

Controller

USB

LPC Bus

I/O

Controller

LPC Bus

Intel 82801FR

I/O Controller Hub

(ICH6-R)

DMI Interconne ct

Back Panel/Front Panel

USB Ports

Serial Ports

Parallel Port

PS/2 Mouse

PS/2 Keyboard

Diskette Drive

Firmware Hub

Intel 925XE Chipset

LPC Bus

TPM Component

LAN

Connector

8 Mbit

(FWH)

(Optional)

Channel B DIMMs (2)

IEEE-1394a Connectors

(Optional)

PCI Slot 1

PCI Slot 2

PCI Slot 3

PCI Slot 4

= connector or socket

PCI Bus

D925XECV2

only

PCI Bus

SMBus

Hardware Monitoring

and Fan Control ASIC

Figure 3. Block Diagram

High Definition Audio Link

Serial ATA

IDE Interface

Front Panel Retasking Jack A/E

Front Panel Retasking Jack F

Mic In/Retasking Jack B

Line In/Retasking Jack C

Audio

Codec

Surround Left-Right/Retasking Jack H

Line Out/Retasking Jack D

CD-ROM (optional)

Center and LFE/Retasking Jack G

Serial ATA IDE Connectors (4)

S/PDIF

OM17471

1.4 Online Support

To find information about… Visit this World Wide Web site:

Intel Desktop Boards D925XECV2 and D925XEBC2 under “Desktop Board Products” or “Desktop Board Support”

Available configurations for the Desktop Board D925XECV2

Available configurations for the Desktop Board D925XEBC2

Processor data sheets http://www.intel.com/design/litcentr ICH6-R addressing http://developer.intel.com/design/chipsets/datashts Custom splash screens http://intel.com/design/motherbd/gen_indx.htm Audio software and utilities http://www.intel.com/design/motherbd LAN software and drivers http://www.intel.com/design/motherbd

1.5 Processor

Product Description

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

http://developer.intel.com/design/motherbd/cv2/cv2_available.htm

http://developer.intel.com/design/motherbd/bc2/bc2_available.htm

The boards are designed to support Intel Pentium 4 processors in an LGA775 processor socket with a 1066, 800, or 533 MHz system bus. See the Intel web site listed below for the most up-to-date list of supported processors.

For information about… Refer to:

Supported processors for the D925XECV2 board http://www.intel.com/design/motherbd/cv2/cv2_proc.htm Supported processors for the D925XEBC2 board http://www.intel.com/design/motherbd/bc2/bc2_proc.htm

CAUTION

Use only the processors listed on web site above. Use of unsupported processors can damage the board, the processor, and the power supply.

INTEGRATOR’S NOTES

Use only ATX12V-compliant power supplies.

For information about Refer to

Power supply connectors Section 2.8.1.1, page 64

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

1.6 System Memory

The boards have four DIMM sockets and support the following memory features:

• 1.8 V and 1.9 V DDR2 SDRAM DIMMs

• 3-3-3 memory timing with 1.9 V DIMMs

• Unbuffered, single-sided or double-sided DIMMs with the following restriction:

Double-sided DIMMS with x16 organization are not supported.

• 4 GB maximum total system memory. Refer to Section 2.2.1 on page 55 for information on the total amount of addressable memory.

• Minimum total system memory: 128 MB

• Non-ECC DIMMs

• Serial Presence Detect

• DDR2 533 MHz or DDR2 400 MHz SDRAM DIMMs

 NOTES

• The BIOS will recognize 1.9 V DIMMs (via the SPD data structure) and reconfigure the memory voltage regulator circuit for 1.9 V, 3-3-3 memory timing operation.

• Remove the PCI Express x16 video card before installing or upgrading memory to avoid interference with the memory retention mechanism.

• To be fully compliant with all applicable DDR SDRAM memory specifications, the board should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. This allows the BIOS to read the SPD data and program the chipset to accurately configure memory settings for optimum performance. If non-SPD memory is installed, the BIOS will attempt to correctly configure the memory settings, but performance and reliability may be impacted or the DIMMs may not function under the determined frequency.

Table 6 lists the supported DIMM configurations.

Table 6. Supported Memory Configurations

DIMM Capacity

128 MB SS 256 Mbit 16 M x 16/empty 4 256 MB SS 256 Mbit 32 M x 8/empty 8 256 MB SS 512 Mbit 32 M x 16/empty 4 512 MB DS 256 Mbit 32 M x 8/32 M x 8 16 512 MB SS 512 Mbit 64 M x 8/empty 8 512 MB SS 1 Gbit 64 M x 16/empty 4 1024 MB DS 512 Mbit 64 M x 8/64 M x 8 16 1024 MB SS 1 Gbit 128 M x 8/empty 8 2048 MB DS 1 Gbit 128 M x 8/128 M x 8 16

Note: In the second column, “DS” refers to double-sided memory modules (containing two rows of SDRAM) and “SS” refers

to single-sided memory modules (containing one row of SDRAM).

Configuration

SDRAM Density

SDRAM Organization Front-side/Back-side

Number of SDRAM Devices

Product Description

INTEGRATOR’S NOTE

Refer to Section 2.2.1, on page 55 for additional information on available memory.

1.6.1 Memory Configurations

The Intel 82925XE MCH supports two types of memory organization:

• Dual channel (Interleaved) mode. This mode offers the highest throughput for real world applications. Dual channel mode is enabled when the installed memory capacities of both DIMM channels are equal. Technology and device width can vary from one channel to the other but the installed memory capacity for each channel must be equal. If different speed DIMMs are used between channels, the slowest memory timing will be used.

• Single channel (Asymmetric) mode. This mode is equivalent to single channel bandwidth operation for real world applications. This mode is used when only a single DIMM is installed or the memory capacities are unequal. Technology and device width can vary from one channel to the other. If different speed DIMMs are used between channels, the slowest memory timing will be used.

Figure 4 illustrates the memory channel and DIMM configuration.



NOTE

The DIMM0 sockets of both channels are blue. The DIMM1 sockets of both channels are black.

Channel A, DIMM Channel A, DIMM 1

Channel B, DIMM Channel B, DIMM 1

Figure 4. Memory Channel and DIMM Configuration

OM16677

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

1.6.1.1 Dual Channel (Interleaved) Mode Configurations

Figure 5 shows a dual channel configuration using two DIMMs. In this example, the DIMM0 (blue) sockets of both channels are populated with identical DIMMs.

1 GB

Channel A, DIMM 0 Channel A, DIMM 1

1 GB

Channel B, DIMM 0 Channel B, DIMM 1

OM17123

Figure 5. Dual Channel (Interleaved) Mode Configuration with Two DIMMs

Figure 6 shows a dual channel configuration using three DIMMs. In this example, the combined capacity of the two DIMMs in Channel A equal the capacity of the single DIMM in the DIMM0 (blue) socket of Channel B.

256 MB 256 MB

512 MB

Channel A, DIMM 0 Channel A, DIMM 1

Channel B, DIMM 0 Channel B, DIMM 1

Figure 6. Dual Channel (Interleaved) Mode Configuration with Three DIMMs

OM17122

Product Description

Figure 7 shows a dual channel configuration using four DIMMs. In this example, the combined capacity of the two DIMMs in Channel A equal the combined capacity of the two DIMMs in Channel B. Also, the DIMMs are matched between DIMM0 and DIMM1 of both channels.

256 MB 512 MB

Channel A, DIMM 0 Channel A, DIMM 1

Channel B, DIMM 0 Channel B, DIMM 1

OM17124

Figure 7. Dual Channel (Interleaved) Mode Configuration with Four DIMMs

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

1.6.1.2 Single Channel (Asymmetric) Mode Configurations



NOTE

Dual channel (Interleaved) mode configurations provide the highest memory throughput.

Figure 8 shows a single channel configuration using one DIMM. In this example, only the DIMM0 (blue) socket of Channel A is populated. Channel B is not populated.

256 MB

Figure 8. Single Channel (Asymmetric) Mode Configuration with One DIMM

Channel A, DIMM 0 Channel A, DIMM 1

Channel B, DIMM 0 Channel B, DIMM 1

OM17125

Figure 9 shows a single channel configuration using three DIMMs. In this example, the combined capacity of the two DIMMs in Channel A does not equal the capacity of the single DIMM in the DIMM0 (blue) socket of Channel B.

256 MB 512 MB

512 MB

Figure 9. Single Channel (Asymmetric) Mode Configuration with Three DIMMs

Channel A, DIMM 0 Channel A, DIMM 1

Channel B, DIMM 0 Channel B, DIMM 1

OM17126

Product Description

1.7 Intel® 925XE Chipset

The Intel 925XE chipset consists of the following devices:

• Intel 82925XE Memory Controller Hub (MCH) with Direct Media Interface (DMI) interconnect

• Intel 82801FR I/O Controller Hub (ICH6-R) with DMI interconnect

• Firmware Hub (FWH)

The MCH is a centralized controller for the system bus, the memory bus, the PCI Express bus, and the DMI interconnect. The ICH6-R is a centralized controller for the board’s I/O paths. The FWH provides the nonvolatile storage of the BIOS.

For information about Refer to

The Intel 925XE chipset http://developer.intel.com/ Resources used by the chipset Chapter 2

1.7.1 USB

The boards support up to eight USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers.

The ICH6-R provides the USB controller for all ports. The port arrangement is as follows:

• Four ports are implemented with dual stacked back panel connectors adjacent to the audio connectors

• Four ports are routed to two separate front panel USB connectors



NOTES

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

For information about Refer to

The location of the USB connectors on the back panel Figure 20, page 66 The location of the front panel USB connectors on the Desktop Board

D925XECV2 The location of the front panel USB connectors on the Desktop Board

D925XEBC2

Figure 21, page 68

Figure 22, page 70

1.7.2 IDE Support

The board provides five IDE interface connectors:

• One parallel ATA IDE connector, which supports two devices

• Four serial ATA IDE connectors, which support one device per connector

1.7.2.1 Parallel ATE IDE Interface

The ICH6-R’s Parallel ATA IDE controller has one bus-mastering Parallel ATA IDE interface. The Parallel ATA IDE interface supports the following modes:

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

• Programmed I/O (PIO): processor controls data transfer.

• 8237-style DMA: DMA offloads the processor, supporting transfer rates of up to 16 MB/sec.

• Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and transfer rates

of up to 33 MB/sec.

• ATA-66: DMA protocol on IDE bus supporting host and target throttling and transfer rates of up to 66 MB/sec. ATA-66 protocol is similar to Ultra DMA and is device driver compatible.

• ATA-100: DMA protocol on IDE bus allows host and target throttling. The ICH6-R’s ATA-100 logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up to 88 MB/sec.

 NOTE

ATA-66 and ATA-100 are faster timings and require a specialized cable to reduce reflections, noise, and inductive coupling.

The Parallel ATA IDE interface also supports ATAPI devices (such as CD-ROM drives) and ATA devices using the transfer modes.

The BIOS supports Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS) translation modes. The drive reports the transfer rate and translation mode to the BIOS.

The boards support Laser Servo (LS-120) diskette technology through the Parallel ATA IDE interfaces. An LS-120 drive can be configured as a boot device by setting the BIOS Setup program’s Boot menu to one of the following:

• ARMD-FDD (ATAPI removable media device – floppy disk drive)

• ARMD-HDD (ATAPI removable media device – hard disk drive)

For information about Refer to

The location of the Parallel ATA IDE connector on the D925XECV2 board Figure 21, page 68 The location of the Parallel ATA IDE connector on the D925XEBC2 board Figure 22, page 70

1.7.2.2 Serial ATA Interfaces

The ICH6-R’s Serial ATA controller offers four independent Serial ATA ports with a theoretical maximum transfer rate of 150 MB/s per port. One device can be installed on each port for a maximum of four Serial ATA devices. A point-to-point interface is used for host to device connections, unlike Parallel ATA IDE which supports a master/slave configuration and two devices per channel.

For compatibility, the underlying Serial ATA functionality is transparent to the operating system. The Serial ATA controller can operate in both legacy and native modes. In legacy mode, standard IDE I/O and IRQ resources are assigned (IRQ 14 and 15). In Native mode, standard PCI Conventional bus resource steering is used. Native mode is the preferred mode for configurations using the Windows XP and Windows 2000 operating systems.



NOTE

Many Serial ATA drives use new low-voltage power connectors and require adaptors or power supplies equipped with low-voltage power connectors.

Product Description

For more information, see: http://www.serialata.org/

For information about Refer to

The location of the Serial ATA IDE connectors on the D925XECV2 board Figure 21, page 68 The location of the Serial ATA IDE connectors on the D925XEBC2 board Figure 22, page 70

1.7.2.3 Serial ATA RAID

The ICH6-R supports RAID (Redundant Array of Independent Drives) level 0 and RAID level 1 on the Serial ATA ports as follows:

• RAID 0 supports data striping. Two physical drives, of identical size, can be teamed together to create one logical drive. As data is written or retrieved from the logical drive, both drives operate in parallel, thus increasing the throughput.

• RAID 1 supports data mirroring. Two physical drives, of identical size, maintain duplicate sets of all data on separate disk drives. Level 1 provides the highest data reliability because two complete copies of all information are maintained.

1.7.2.4 RAID Boot Configuration Overview

A RAID array can be created by using the existing Serial ATA ports, correctly configuring the BIOS, and installing drivers. The following steps are required to successfully establish a RAID configuration.

1. Enable RAID Support in BIOS.

2. Create a RAID array using the Intel Application Accelerator (IAA) utility.

3. Install the IAA RAID driver.

4. Format the RAID array.

5. Install the IAA Companion Utility (this step is optional).

For information about Refer to

Serial ATA RAID configuration http://developer.intel.com/design/motherbd/cv2/index.htm

1.7.2.5 SCSI Hard Drive Activity LED Connector (Optional)

The SCSI hard drive activity LED connector is a 1 x 2-pin connector that allows an add-in hard drive controller to use the same LED as the onboard IDE controller. For proper operation, this connector should be wired to the LED output of the add-in hard drive controller. The LED indicates when data is being read from, or written to, either the add-in hard drive controller or the onboard IDE controller (Parallel ATA or Serial ATA).



NOTE

The SCSI Hard Drive Activity LED connector is an option available only on the D925XECV2 board. It is not available on the D925XEBC2 board.

For information about Refer to

The location of the SCSI hard drive activity LED connector on the D925XECV2 board

The signal names of the SCSI hard drive activity LED connector Table 26, page 73

Figure 21, page 68

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

1.7.3 Real-Time Clock, CMOS SRAM, and Battery

A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the battery. The clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 VSB applied.

 NOTE

If the battery and AC power fail, custom defaults, if previously saved, will be loaded into CMOS RAM at power-on.

1.8 PCI Express Connectors

The boards provide the following PCI Express connectors:

• One PCI Express x16 connector. The x16 interface supports simultaneous (full duplex) transfer speeds up to 8 GBytes/sec. Single-ended (half duplex) transfers are supported at up to 4 Gbytes/sec.

• Two PCI Express x1 connectors on the D925XECV2 board; one PCI Express x1 connector on the D925XEBC2 board. The x1 interfaces support simultaneous transfer speeds up to 500 MBytes/sec

The PCI Express interface supports the PCI Conventional bus configuration mechanism so that the underlying PCI Express architecture is compatible with PCI Conventional compliant operating systems. Additional features of the PCI Express interface includes the following:

• Support for the PCI Express enhanced configuration mechanism

• Automatic discovery, link training, and initialization

• Support for Active State Power Management (ASPM)

• SMBus 2.0 support

• Wake# signal supporting wake events from ACPI S1, S3, S4, or S5

• Software compatible with the PCI Power Management Event (PME) mechanism defined in the

PCI Power Management Specification Rev. 1.1

1.9 Auxiliary Power (AUX PWR) Output Connector

The D925XECV2 board includes a 1x4 power connector that can be used to provide power for internal chassis lighting or additional fans. The use of this connector requires an ATX12V power supply with a 24-pin (2x12) main power cable. If a power supply with a 20-pin (2x10) main power cable is used, the auxiliary power output connector may not function.

The on/off function of this connector is controlled from within the BIOS Setup Program. The default setting in the BIOS is for this connector to be off.

Product Description

INTEGRATOR’S NOTES

When using this connector, observe the following precautions:

• Do not use a Y-adapter, power splitter, or SATA power adapter to attach storage devices (such as hard disk drives or CD/DVD drives) to this connector. This connector will not provide adequate power for storage devices.

• Do not connect any devices to this connector that draw more than 1.5 A. The connector circuitry includes overcurrent protection components that limit the current draw to a maximum of 1.5 A.

For information about Refer to

The location of the auxiliary power output connector Figure 21, page 68 The signal names of the auxiliary power output connector Table 28, page 73



NOTE

The auxiliary power output connector is present only on the D925XECV2 board. It is not present on the D925XEBC2 board.

1.10 I/O Controller

The I/O controller provides the following features:

• 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 Conventional bus systems

• PS/2-style mouse and keyboard interfaces

• Interface for one 1.44 MB or 2.88 MB diskette drive

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

• PCI Conventional bus power management support

The BIOS Setup program provides configuration options for the I/O controller.

1.10.1 Serial Port

The boards have one serial port connector located on the back panel. The serial port supports data transfers at speeds up to 115.2 kbits/sec with BIOS support.

For information about Refer to

The location of the serial port A connector Figure 20, page 66

1.10.2 Parallel Port

The 25-pin D-Sub parallel port connector is located on the back panel. Use the BIOS Setup program to set the parallel port mode.

For information about Refer to

The location of the parallel port connector Figure 20, page 66

Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

1.10.3 Diskette Drive Controller

The I/O controller supports one diskette drive. Use the BIOS Setup program to configure the diskette drive interface.

For information about Refer to

The location of the diskette drive connector on the D925XECV2 board Figure 21, page 68 The location of the diskette drive connector on the D925XEBC2 board Figure 22, page 70

1.10.4 Keyboard and Mouse Interface

PS/2 keyboard and mouse connectors are located on the back panel.



NOTE

The keyboard is supported in the bottom PS/2 connector and the mouse is supported in the top PS/2 connector. Power to the computer should be turned off before a keyboard or mouse is connected or disconnected.

For information about Refer to

The location of the keyboard and mouse connectors Figure 20, page 66

+ 80 hidden pages

Intel BOXD925XEBC2LK - Desktop Board D925XEBC2LK, D925XEBC2, D925XEBC2LK - Desktop Board Motherboard, D925XECV2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual