INTEL DP55SB Technical Product Specification

Intel® Desktop Board
DP55SB

Technical Product Specification

September 2009

Order Number: E70714-001US

The Intel® Desktop Board DP55SB 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 DP55SB Specification Update.

Revision History

Revision Revision History Date

-001 First release of the Intel® Desktop Board DP55SB Technical Product
Specification

This product specification applies to only the standard Intel® Desktop Board DP55SB with BIOS
identifier KGIBX10J.86A.

Changes to this specification will be published in the Intel Desktop Board DP55SB Specification
Update before being incorporated into a revision of this document.

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®

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desktop boards are evaluated as Information Technology Equipment (I.T.E.) for use in personal

September 2009

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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.

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

This Technical Product Specification (TPS) specifies the board layout, components,
connectors, power and environmental requirements, and the BIOS for the

®

Intel

Desktop Board DP55SB.

Intended Audience

The TPS is intended to provide detailed, technical information about the Intel Desktop
Board DP55SB and its components to the vendors, system integrators, and other
engineers and technicians who need this level of information. It is specifically not
intended for general audiences.

What This Document Contains

Chapter Description

1 A description of the hardware used on the Intel Desktop Board DP55SB
2 A map of the resources of the Intel Desktop Board
3 The features supported by the BIOS Setup program
4 A description of the BIOS error messages, beep codes, and POST codes
5 Regulatory compliance and battery disposal information

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.

CAUTION

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

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Intel Desktop Board DP55SB Technical Product Specification

Other Common Notation

# Used after a signal name to identify an active-low signal (such as USBP0#)
GB Gigabyte (1,073,741,824 bytes)
GB/s Gigabytes per second
Gb/s Gigabits per second
KB Kilobyte (1024 bytes)
Kbit Kilobit (1024 bits)
kbits/s 1000 bits per second
MB Megabyte (1,048,576 bytes)
MB/s Megabytes per second
Mbit Megabit (1,048,576 bits)
Mbits/s 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.

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Contents

1 Product Description

1.1 Overview.......................................................................................... 9

1.1.1 Feature Summary .................................................................. 9

1.1.2 Board Layout ....................................................................... 11

1.1.3 Block Diagram ..................................................................... 13

1.2 Legacy Considerations...................................................................... 14

1.3 Online Support................................................................................ 14

1.4 Processor ....................................................................................... 14

1.5 System Memory .............................................................................. 15

1.5.1 Memory Configurations ......................................................... 16

1.6 Intel® P55 Express Chipset ............................................................... 18

1.6.1 USB ................................................................................... 18

1.6.2 SATA Interfaces ................................................................... 19

1.7 Discrete SATA Controller .................................................................. 20

1.7.1 eSATA Support .................................................................... 20

1.8 Real-Time Clock Subsystem .............................................................. 20

1.9 Legacy I/O Controller ....................................................................... 21

1.9.1 Consumer Infrared (CIR)....................................................... 21

1.10 Audio Subsystem............................................................................. 22

1.10.1 Audio Subsystem Software .................................................... 22

1.10.2 Audio Connectors and Headers ............................................... 22

1.10.3 8-Channel (7.1) Audio Subsystem........................................... 23

1.11 LAN Subsystem............................................................................... 24

1.11.1 Intel® 82578DC Gigabit Ethernet Controller.............................. 24

1.11.2 LAN Subsystem Software....................................................... 25

1.11.3 RJ-45 LAN Connector with Integrated LEDs .............................. 25

1.12 Bluetooth* Technology Support......................................................... 26

1.13 Hardware Management Subsystem .................................................... 26

1.13.1 Hardware Monitoring and Fan Control...................................... 26

1.13.2 Fan Monitoring..................................................................... 27

1.13.3 Chassis Intrusion and Detection.............................................. 27

1.13.4 Thermal Monitoring .............................................................. 28

1.14 Power Management ......................................................................... 29

1.14.1 ACPI................................................................................... 29

1.14.2 Hardware Support ................................................................ 32

1.15 Onboard Power Button ..................................................................... 37

1.15.1 ENERGY STAR* 4.0 and 5.0, E-Standby, and

ErP Compliance.................................................................... 38

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