Intel BOXD915PCML - Desktop Board D915PCML, BOXD915PCY - Desktop Board D915PCY, BOXD915PCYL, D915PCM, D915PCY User Manual

Intel® Desktop Boards D915PCY/D915PCM

Technical Product Specification

The Intel® Desktop Board D915PCY/D915PCM may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized errata are documented in the Intel Desktop Board D915PCY/D915PCM Specification Update.

June 2004

Order Number: C74531-001

Revision History

Revision Revision History Date

-001 First release of the Intel® Desktop Board D915PCY/D915PCM Technical Product Specification.

This product specification applies to only standard Intel® Desktop Boards D915PCY and D915PCY with BIOS identifier EV91510A.86A.

Changes to this specification will be published in the Intel Desktop Board D915PCY/D915PCM 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 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 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.

desktop boards may contain design defects or errors known as errata, which may cause the product to deviate from

Intel published specifications. Current characterized errata are available on request.

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.

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

June 2004

Preface

This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for these Intel and D915PCM. It describes the standard product and available manufacturing options.

Intended Audience

The TPS is intended to provide detailed, technical information about the Desktop Boards D915PCY and D915PCM 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

Chapter Description

1 A description of the hardware used on the Desktop Boards D915PCY and D915PCM

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

Desktop Boards: D915PCY

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 Board D915PCY/D915PCM 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 D915PCY and D915PCM, 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

1.8 PCI Express Connectors ............................................................................................27

1.9 I/O Controller..............................................................................................................28

1.10 Audio Subsystem .......................................................................................................29

1.11 LAN Subsystem..........................................................................................................31

1.12 Hardware Management Subsystem ...........................................................................33

1.13 Power Management ...................................................................................................36

1.14 Trusted Platform Module (Optional)............................................................................44

915P Chipset ....................................................................................................25

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

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

1.7.3 Real-Time Clock, CMOS SRAM, and Battery...............................................27

1.9.1 Serial Ports ..................................................................................................28

1.9.2 Parallel Port .................................................................................................28

1.9.3 Diskette Drive Controller ..............................................................................28

1.9.4 Keyboard and Mouse Interface ....................................................................28

1.10.1 Audio Subsystem Software ..........................................................................29

1.10.2 Audio Connectors.........................................................................................29

1.10.3 Intel

1.11.1 Intel

High Definition Audio Subsystem........................................................30

82562EZ Physical Layer Interface Device ..........................................31

1.11.2 Alert Standard Format (ASF) Support ..........................................................32

1.11.3 LAN Subsystem Software ............................................................................33

1.11.4 Intel

Wireless Connect Technology (Optional)............................................33

1.12.1 Hardware Monitoring and Fan Control ASIC ................................................33

1.12.2 Thermal Monitoring ......................................................................................34

1.12.3 Fan Monitoring .............................................................................................35

1.12.4 Chassis Intrusion and Detection...................................................................36

1.13.1 ACPI ............................................................................................................36

1.13.2 Hardware Support........................................................................................39

1.14.1 System Requirements..................................................................................44

1.14.2 Warning of Potential Data Loss....................................................................44

1.14.3 Security Precautions ....................................................................................45

Intel Desktop Board D915PCY/D915PCM Technical Product Specification

1.14.4 Trusted Platform Module Ownership ............................................................46

1.14.5 Enabling the Trusted Platform Module .........................................................47

1.14.6 Assuming Trusted Platform Module Ownership ...........................................47

1.14.7 Recovery Procedures...................................................................................48

1.14.8 Clearing Trusted Platform Module Ownership..............................................49

1.14.9 Software Support .........................................................................................50

2 Technical Reference

2.1 Introduction ................................................................................................................51

2.2 Memory Resources ....................................................................................................51

2.2.1 Addressable Memory ...................................................................................51

2.2.2 Memory Map ................................................................................................53

2.3 DMA Channels ...........................................................................................................53

2.4 Fixed I/O Map.............................................................................................................54

2.5 PCI Configuration Space Map ....................................................................................55

2.6 Interrupts ....................................................................................................................56

2.7 PCI Conventional Interrupt Routing Map ....................................................................56

2.8 Connectors.................................................................................................................58

2.8.1 Back Panel Connectors................................................................................58

2.8.2 Component-side Connectors........................................................................60

2.9 Jumper Block .............................................................................................................71

2.10 Mechanical Considerations.........................................................................................72

2.10.1 D915PCY Board Form Factor ......................................................................72

2.10.2 D915PCM Board Form Factor......................................................................73

2.10.3 I/O Shield .....................................................................................................74

2.11 Electrical Considerations ............................................................................................75

2.11.1 DC Loading..................................................................................................75

2.11.2 Add-in Board Considerations .......................................................................75

2.11.3 Fan Connector Current Capability................................................................76

2.11.4 Power Supply Considerations ......................................................................76

2.12 Thermal Considerations .............................................................................................77

2.13 Reliability....................................................................................................................79

2.14 Environmental ............................................................................................................80

2.15 Regulatory Compliance ..............................................................................................80

2.15.1 Safety Regulations.......................................................................................80

2.15.2 EMC Regulations .........................................................................................81

2.15.3 European Union Declaration of Conformity Statement .................................82

2.15.4 Product Ecology Statements ........................................................................82

2.15.5 Product Certification Markings (Board Level) ...............................................83

3 Overview of BIOS Features

3.1 Introduction ................................................................................................................85

3.2 BIOS Flash Memory Organization ..............................................................................86

3.3 Resource Configuration..............................................................................................86

3.3.1 PCI Autoconfiguration ..................................................................................86

3.3.2 PCI IDE Support ..........................................................................................86

3.4 System Management BIOS (SMBIOS).......................................................................87

3.5 Legacy USB Support..................................................................................................87

3.6 BIOS Updates ............................................................................................................88

3.6.1 Language Support........................................................................................88

3.6.2 Custom Splash Screen ................................................................................88

3.7 Boot Options ..............................................................................................................89

3.7.1 CD-ROM Boot..............................................................................................89

3.7.2 Network Boot ...............................................................................................89

3.7.3 Booting Without Attached Devices ...............................................................89

3.7.4 Changing the Default Boot Device During POST .........................................89

3.8 Fast Booting Systems with Intel® Rapid BIOS Boot ...................................................90

3.8.1 Peripheral Selection and Configuration ........................................................90

3.8.2 Intel Rapid BIOS Boot ..................................................................................90

3.9 BIOS Security Features..............................................................................................91

4 Error Messages and Beep Codes

4.1 BIOS Error Messages ................................................................................................93

4.2 Port 80h POST Codes................................................................................................95

4.3 Bus Initialization Checkpoints.....................................................................................99

4.4 Speaker....................................................................................................................100

4.5 BIOS Beep Codes ....................................................................................................100

Contents

Figures

1. D915PCY Board Components....................................................................................14

2. D915PCM Board 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 High Definition Audio Subsystem......30

11. High Definition Audio Subsystem Block Diagram........................................................31

12. LAN Connector LED Locations...................................................................................32

13. Thermal Monitoring for D915PCY Board ....................................................................34

14. Thermal Monitoring for D915PCM Board....................................................................35

15. Location of the Standby Power Indicator LED ............................................................43

16. Detailed System Memory Address Map......................................................................52

17. Back Panel Connectors..............................................................................................58

18. D915PCY Board Component-side Connectors...........................................................60

19. D915PCM Board Component-side Connectors ..........................................................62

20. Connection Diagram for Front Panel Connector .........................................................68

21. Connection Diagram for Front Panel USB Connectors...............................................70

22. Connection Diagram for IEEE 1394a Connectors.......................................................70

23. Location of the Jumper Block .....................................................................................71

24. D915PCY Board Dimensions .....................................................................................72

25. D915PCM Board Dimensions.....................................................................................73

vii

Intel Desktop Board D915PCY/D915PCM Technical Product Specification

26. I/O Shield Dimensions................................................................................................74

27. Processor Heatsink for Omni-directional Airflow.........................................................77

28. Localized High Temperature Zones............................................................................78

Tables

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

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

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

4. D915PCY Board Components Shown in Figure 1. .....................................................15

5. D915PCM Board Components Shown in Figure 2......................................................17

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

7. LAN Connector LED States........................................................................................32

8. Effects of Pressing the Power Switch .........................................................................37

9. Power States and Targeted System Power ................................................................38

10. Wake-up Devices and Events.....................................................................................39

11. System Memory Map .................................................................................................53

12. DMA Channels ...........................................................................................................53

13. I/O Map ......................................................................................................................54

14. PCI Configuration Space Map ....................................................................................55

15. Interrupts ....................................................................................................................56

16. PCI Interrupt Routing Map..........................................................................................57

17. Back Panel Connectors Shown in Figure 17...............................................................59

18. Component-side Connectors Shown in Figure 18 ......................................................61

19. Component-side Connectors Shown in Figure 19 ......................................................63

20. S/PDIF Connector (Optional)......................................................................................64

21. ATAPI CD-ROM Connector (Optional) .......................................................................64

22. Front Panel Audio Connector .....................................................................................64

23. Serial Port B Connector (optional) ..............................................................................64

24. Chassis Intrusion Connector ......................................................................................64

25. SCSI Hard Drive Activity LED Connector (Optional)...................................................65

26. Serial ATA Connectors...............................................................................................65

27. Processor Fan Connector...........................................................................................65

28. Chassis Fan Connectors ............................................................................................65

29. Main Power Connector...............................................................................................66

30. ATX12V Power Connector .........................................................................................67

31. Alternate Power Connector ........................................................................................67

32. Auxiliary Front Panel Power/Sleep LED Connector ....................................................68

33. Front Panel Connector ...............................................................................................68

34. States for a One-Color Power LED.............................................................................69

35. States for a Two-Color Power LED.............................................................................69

36. BIOS Setup Configuration Jumper Settings................................................................71

37. DC Loading Characteristics........................................................................................75

38. Fan Connector Current Capability ..............................................................................76

39. Thermal Considerations for Components ...................................................................79

40. Environmental Specifications......................................................................................80

41. Safety Regulations .....................................................................................................80

42. EMC Regulations .......................................................................................................81

viii

Contents

43. Product Certification Markings....................................................................................83

44. BIOS Setup Program Menu Bar .................................................................................86

45. BIOS Setup Program Function Keys ..........................................................................86

46. Boot Device Menu Options.........................................................................................89

47. Supervisor and User Password Functions..................................................................91

48. BIOS Error Messages ................................................................................................93

49. Uncompressed INIT Code Checkpoints......................................................................95

50. Boot Block Recovery Code Checkpoints ....................................................................95

51. Runtime Code Uncompressed in F000 Shadow RAM ................................................96

52. Bus Initialization Checkpoints.....................................................................................99

53. Upper Nibble High Byte Functions..............................................................................99

54. Lower Nibble High Byte Functions............................................................................100

55. Beep Codes .............................................................................................................100

Intel Desktop Board D915PCY/D915PCM 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

1.8 PCI Express Connectors ............................................................................................27

1.9 I/O Controller..............................................................................................................28

1.10 Audio Subsystem .......................................................................................................29

1.11 LAN Subsystem..........................................................................................................31

1.12 Hardware Management Subsystem ...........................................................................33

1.13 Power Management ...................................................................................................36

1.14 Trusted Platform Module (Optional)............................................................................44

1.1 PCI Bus Terminology Change

915P Chipset ....................................................................................................25

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: D915PCY and D915PCM. The Desktop Boards are identical with the exception of the items listed in Table 1.

Table 1. Summary of Board Differences

D915PCY • ATX Form Factor

• Four PCI Conventional bus connectors

• Two PCI Express x1 bus add-in card connectors

• Three chassis fan connectors (front chassis, rear chassis 1, and rear chassis 2)

D915PCM • microATX Form Factor

• Two PCI Conventional bus connectors

• One PCI Express x1 bus add-in card connector

• Two chassis fan connectors (front chassis and rear chassis)

NOTE

Most of the illustrations in this document show only the Desktop Board D915PCY. When there are significant differences between the two Desktop Boards, illustrations of both boards are provided.

Intel Desktop Board D915PCY/D915PCM Technical Product Specification

1.3 Overview

1.3.1 Feature Summary

Table 2 summarizes the major features of the Desktop Boards D915PCY and D915PCM.

Table 2. Feature Summary

Form Factor

Processor Support for an Intel® Pentium®4 processor in an LGA775 socket with an 800 or

Memory

Chipset

Video One PCI Express x16 bus add-in card connector

Audio Intel® High Definition Audio subsystem using the Realtek ALC860 audio codec

I/O Control LPC Bus I/O controller

USB Support for USB 2.0 devices

Peripheral Interfaces

LAN Support 10/100 Mbits/sec LAN subsystem using the Intel® 82562EZ Platform LAN Connect

BIOS • Intel/AMI BIOS (resident in the 4 Mbit FWH)

Instantly Available PC Technology

•

D915PCY: ATX (12.00 inches by 9.60 inches [304.80 millimeters by

243.84 millimeters])

•

D915PCM: microATX Form Factor (9.60 inches by 9.60 inches [243.84 millimeters by 243.84 millimeters])

533 MHz system bus

•

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

•

Support for DDR2 533 MHz or DDR2 400 MHz DIMMs

•

Support for up to 4 GB of system memory

915P Chipset, consisting of:

Intel

• Intel®82915P Memory Controller Hub (MCH)

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

• 4 Mbit Firmware Hub (FWH)

• 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

(PLC) device

• 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)

Expansion Capabilities

Hardware Monitor Subsystem

•

PCI Conventional bus connectors (four on the D915PCY; two on the D915PCM)

•

PCI Express* x1 bus add-in card connectors (two on the D915PCY; one on the D915PCM)

•

One PCI Express x16 bus add-in card connector (both boards)

•

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 D915PCY and D915PCM. 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

ATAPI CD-ROM Connector

ATX fan connector

IEEE-1394a Interface

Intel® 82801FBW I/O Controller Hub (ICH6W)

SCSI Hard Drive Activity LED Connector

Serial Port B Second serial port accessible via a connector on the component side of the board

S/PDIF Connector A 1 x 3 connector (mounted on the component side of the board) that provides digital

Trusted Platform Module (TPM)

For information about Refer to

Available configurations for the Desktop Boards D915PCY and D915PCM Section 1.4, page 19

A connector for attaching an internal CD-ROM drive to the onboard audio subsystem

Additional fan connector for use in larger chassis (D915PCY board only)

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

I/O controller Hub that supports Intel

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

audio signals in S/PDIF format

A component that enhances platform security

Wireless Connect Technology

Intel Desktop Board D915PCY/D915PCM Technical Product Specification

1.3.3 Board Layouts

Figure 1 shows the location of the major components on the Desktop Board D915PCY.

A B K L

G H I J

P Q

S T

DDFF

Figure 1. D915PCY Board Components

Table 4 lists the components identified in Figure 1.

VWXYGG ZAAEEBBCC

OM17051

Table 4. D915PCY Board Components Shown in Figure 1.

Item/Callout from Figure 1 Description

Rear chassis fan connector 2

Speaker

PCI Express x1 bus add-in card connectors

ATAPI CD-ROM connector (optional)

S/PDIF connector (optional)

Realtek ALC860 audio codec

Front panel audio connector

PCI Conventional bus add-in card connectors

Ethernet PLC device (optional)

PCI Express x16 bus add-in card connector

Rear chassis fan connector 1

Back panel connectors

Alternate power connector

+12V power connector (ATX12V)

LGA775 processor socket

Processor fan connector

Intel 82915P MCH

DIMM Channel A sockets

Serial port B connector (optional)

DIMM Channel B sockets

SCSI LED (optional)

I/O controller

Power connector

Diskette drive connector

Parallel ATE IDE connector

Battery

Chassis intrusion connector

BIOS Setup configuration jumper block

4 Mbit Firmware Hub (FWH)

Front chassis fan connector

Serial ATA connectors

Auxiliary front panel power LED connector

Front panel connector

ATX fan connector (optional)

Front panel USB connector

Intel 82801FB I/O Controller Hub (ICH6)

Front panel IEEE-1394a connectors (optional)

IEEE-1394a controller (optional)

PCI Conventional bus add-in card connectors

Product Description

Intel Desktop Board D915PCY/D915PCM Technical Product Specification

Figure 2 shows the location of the major components on the Desktop Board D915PCM.

EFG H

I JA C

B D

N O

CCEE

Figure 2. D915PCM Board Components

Table 5 lists the components identified in Figure 2.

UVWXFF YDDAABB

OM17052

Table 5. D915PCM Board Components Shown in Figure 2.

Item/Callout from Figure 2 Description

ATAPI CD-ROM connector (optional)

PCI Express x1 bus add-in card connectors

Realtek ALC860 audio codec

S/PDIF connector (optional)

Front panel audio connector

PCI Conventional bus add-in card connectors

Ethernet PLC device (optional)

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

Hardware monitoring and fan control ASIC

Processor fan connector

Intel 82915P MCH

DIMM Channel A sockets

Serial port B connector (optional)

DIMM Channel B sockets

SCSI LED connector (optional)

I/O controller

Power connector

Diskette drive connector

Parallel ATE IDE connector

Battery

Chassis intrusion connector

BIOS Setup configuration jumper block

4 Mbit Firmware Hub (FWH)

Front chassis fan connector

Serial ATA connectors

Auxiliary front panel power LED connector

Front panel connector

Front panel USB connector

Intel 82801FB I/O Controller Hub (ICH6)

Front panel IEEE-1394a connectors (optional)

IEEE-1394a controller (optional)

Speaker

Product Description

Intel Desktop Board D915PCY/D915PCM 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 Interface

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)

Channel B DIMMs (2)

D915PCY

only

Parallel ATA

IDE Interface

System Bus

(800/533 MHz)

Intel 82915P

Memory Controller

Hub (MCH)

Dual-Channel

Memory Bus

SMBus

USB

LPC Bus

I/O

Controller

LPC Bus

Intel 82801FB

I/O Controller Hub

(ICH6)

DMI Interconnect

Back Panel/Front Panel

USB Ports

Serial Ports

Parallel Port

PS/2 Mouse

PS/2 Keyboard

Diskette Drive

Connector

4 Mbit

Firmware Hub

(FWH)

Intel 915P Chipset

LPC Bus

TPM Component

(Optional)

Interface

LAN Connect

10/100

LAN PLC

LAN

Connector

IEEE-1394a Connectors

(Optional)

PCI Slot 1

PCI Slot 2

PCI Slot 3

PCI Slot 4

= connector or socket

PCI Bus

D915PCY

only

PCI Bus

SMBus

Hardware Monitoring

and Fan Control ASIC

Figure 3. Block Diagram

Serial ATA

IDE Interface

High Definition Audio Link

Mic In/Retasking Jack B

Line In/Retasking Jack C

Line Out/Retasking Jack D

Audio

Codec

Retasking Jack E [Port 1]

Retasking Jack F [Port 2]

CD-ROM (optional)

S/PDIF (optional)

Serial ATA IDE Connectors (4)

OM17129

1.4 Online Support

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

Intel Desktop Boards D915PCY and D915PCM under “Desktop Board Products” or “Desktop Board Support”

Available configurations for the Desktop Board D915PCY

Available configurations for the Desktop Board D915PCM

Processor data sheets http://www.intel.com/design/litcentr

ICH6 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/cy/cy_available.htm

http://developer.intel.com/design/motherbd/cm/cm_available.htm

The boards are designed to support Intel Pentium 4 processors in an LGA775 processor socket with an 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 D915PCY board http://www.intel.com/design/motherbd/cy/cy_proc.htm

Supported processors for the D915PCM board http://www.intel.com/design/motherbd/cm/cm_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 NOTE



Use only ATX12V-compliant power supplies.

For information about Refer to

Power supply connectors Section 2.8.2.2, page 66

Intel Desktop Board D915PCY/D915PCM Technical Product Specification

1.6 System Memory

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

•

1.8 V (only) DDR2 SDRAM DIMMs with gold-plated contacts

•

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 51 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

•

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 Configuration

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).

INTEGRATOR’S NOTE



SDRAM Density

SDRAM Organization Front-side/Back-side

Number of SDRAM Devices

It is possible to install four 2048 MB (2 GB) modules for a total of 8 GB of system memory, however, only 4 GB of address space is available. Refer to Section 2.2.1, on page 51 for additional information on available memory.

1.6.1 Memory Configurations

The Intel 82915P 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.

Product Description



NOTE

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

Channel A, DIMM 0 Channel A, DIMM 1

Channel B, DIMM 0 Channel B, DIMM 1

Figure 4. Memory Channel and DIMM Configuration

OM17054

Intel Desktop Board D915PCY/D915PCM 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

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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

Channel A, DIMM 0 Channel A, DIMM 1

512 MB

Channel B, DIMM 0 Channel B, DIMM 1

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

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 5

12 MB

256 MB 512 MB

Channel A, DIMM 0 Channel A, DIMM 1

Channel B, DIMM 0 Channel B, DIMM 1

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

Intel Desktop Board D915PCY/D915PCM 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.

56 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

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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

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Product Description

1.7 Intel® 915P Chipset

The Intel 915P chipset consists of the following devices:

•

Intel 82915P Memory Controller Hub (MCH) with Direct Media Interface (DMI) interconnect

•

Intel 82801FB I/O Controller Hub (ICH6) 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 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 915P 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 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



NOTE

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 17, page 58

The location of the front panel USB connectors on the D915PCY board Figure 18, page 60

The location of the front panel USB connectors on the D915PCM board Figure 19, page 62

1.7.2 IDE Support

The boards provides five IDE interface connectors:

• One parallel ATA IDE connector that supports two devices

• Four serial ATA IDE connectors that support one device per connector

1.7.2.1 Parallel ATE IDE Interface

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

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

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

Intel Desktop Board D915PCY/D915PCM Technical Product Specification

•

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’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 D915PCY board Figure 18, page 60

The location of the Parallel ATA IDE connector on the D915PCM board Figure 19, page 62

1.7.2.2 Serial ATA Interfaces

The ICH6’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.

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

Product Description

For information about Refer to

The location of the Serial ATA IDE connectors on the D915PCY board Figure 18, page 60

The location of the Serial ATA IDE connectors on the D915PCM board Figure 19, page 62

1.7.2.3 SCSI Hard Drive Activity LED Connector (Optional)

The SCSI hard drive activity LED connector is a 1x2-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).

For information about Refer to

The location of the SCSI hard drive activity LED connector on the D915PCY board Figure 18, page 60

The location of the SCSI hard drive activity LED connector on the D915PCM board Figure 19, page 62

The signal names of the SCSI hard drive activity LED connector Table 25, page 65

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 supporting simultaneous transfer speeds up to 8 GBytes/sec

• Two PCI Express x1 connectors. 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

Intel Desktop Board D915PCY/D915PCM Technical Product Specification

1.9 I/O Controller

The I/O controller provides the following features:

•

Two serial ports (Serial Port B is optional)

•

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.

1.9.1 Serial Ports

The Desktop Board can support up to two serial port connectors. Serial port A is located on the back panel. Serial port B (optional) is accessible using a connector on the component side of board. The serial ports support 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 17, page 58

The location of the serial port B connector on the D915PCY board Figure 18, page 60

The location of the serial port B connector on the D915PCM board Figure 19, page 62

The signal names of the serial port B connector Table 23, page 64

1.9.2 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 17, page 58

1.9.3 Diskette Drive Controller

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

For information about Refer to

The location of the diskette drive connector on the D915PCY board Figure 18, page 60

The location of the diskette drive connector on the D915PCM board Figure 19, page 62

1.9.4 Keyboard and Mouse Interface

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

Product Description

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 17, page 58

1.10 Audio Subsystem

The boards support the Intel High Definition audio subsystem based on the Realtek ALC860 codec. The audio subsystem supports the following features:

• Advanced jack sense (front and rear panel) that enables the audio codec to recognize the device that is connected to an audio port. All jacks are capable of retasking according to user’s definition, or can be automatically switched depending on the recognized device type.

• Stereo input and output for all jacks.

• A signal-to-noise (S/N) ratio of 90 dB.

INTEGRATOR’S NOTE

For the front panel jack sensing and automatic retasking feature to function, a front panel daughter card that is designed for Intel High Definition Audio must be used. Otherwise, an AC ’97 style audio front panel connector will be assumed and the Line Out and Mic In functions will be permanent.

1.10.1 Audio Subsystem Software

Audio software and drivers are available from Intel’s World Wide Web site.

For information about Refer to

Obtaining audio software and drivers Section 1.4, page 19

1.10.2 Audio Connectors

The boards contain audio connector on both the back panel and the component side of the board. The component-side audio connectors include the following:

• Front panel audio (a 2 x 5-pin connector that provides mic in and line out signals for front panel audio connectors)

• ATAPI CD-ROM (an optional 1 x 4-pin ATAPI-style connector for connecting an internal ATAPI CD-ROM drive to the audio mixer)

• S/PDIF (an optional 1 x 3 connector that provides S/PDIF output signals)

The functions of the back panel audio connectors are dependent on which subsystem is present.

Intel Desktop Board D915PCY/D915PCM Technical Product Specification

For information about Refer to

The location of the front panel audio connector on the D915PCY board Figure 18, page 60

The location of the front panel audio connector on the D915PCM board Figure 19, page 62

The signal names of the front panel audio connector Table 22, page 64

The location of the optional ATAPI CD-ROM connector on the D915PCY board Figure 18, page 60

The location of the optional ATAPI CD-ROM connector on the D915PCM board Figure 19, page 62

The signal names of the optional ATAPI CD-ROM connector Table 21, page 64

The location of the optional S/PDIF connector on the D915PCY board Figure 18, page 60

The location of the optional S/PDIF connector on the D915PCM board Figure 19, page 62

The signal names of the optional S/PDIF connector Table 20, page 64

1.10.3 Intel® High Definition Audio Subsystem

The Intel High Definition Audio subsystem includes the following:

•

Intel 82801FB I/O Controller Hub (ICH6)

• Realtek ALC860 audio codec

• Microphone input that supports a single dynamic, condenser, or electret microphone

The front and back audio connectors are configurable through the audio device drivers. The available configurable audio ports are shown in Figure 10.

Front Panel

Audio Connectors

Line Out/

Retasking Jack F

[Port 2]

Mic In/

Retasking Jack E

[Port 1]

Figure 10. Front/Back Panel Audio Connector Options for High Definition Audio Subsystem

Back Panel

Audio Connectors

Line In/

Retasking Jack C

Line Out/

Retasking Jack D

Mic In/

Retasking Jack B

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Intel BOXD915PCML - Desktop Board D915PCML, BOXD915PCY - Desktop Board D915PCY, BOXD915PCYL, D915PCM, D915PCY User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual