Intel D2550DC2 User manual

Intel® Desktop Board D2550DC2
Product Guide
Order Number: G74459-001

Revision History
Revision Revision History Date
-001
First release of the Intel®Desktop Board D2550DC2 Product
Guide August 2012
Disclaimer
Information in this document is provided in connection with Intel®products. No license, express or implied,
by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided
in Intel’s Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel
disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or
warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent,
copyright or other intellectual property right. Intel products are not intended for use in medical, life saving,
or life sustaining applications. Intel may make changes to specifications and product descriptions at any
time, without notice.
Intel Desktop Board D2550DC2 may contain design defects or errors known as errata which may cause the
product to deviate from published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing
your product order.
Copies of documents which have an ordering number and are referenced in this document, or other Intel
literature, may be obtained from Intel Corporation by going to the World Wide Web site at:
http://www.intel.com/ or by calling 1-800-548-4725.
Intel, the Intel logo, and Intel Atom are trademarks of Intel Corporation in the U.S. and/or other countries.
* Other names and brands may be claimed as the property of others.
Copyright © 2012 Intel Corporation. All rights reserved.

iii
Preface
This Product Guide gives information about board layout, component installation, and
regulatory requirements for Intel®Desktop Board D2550DC2.
Intended Audience
The Product Guide is intended for technically qualified personnel. It is not intended for
general audiences.
Intended Uses
All Intel®Desktop Boards are evaluated as Information Technology Equipment (I.T.E.)
for use in personal computers (PC) for installation in homes, offices, schools, computer
rooms, and similar locations. The suitability of this product for other PC or embedded
non-PC applications or other environments, such as medical, industrial, alarm systems,
test equipment, etc. may not be supported without further evaluation by Intel.
Document Organization
The chapters in this Product Guide are arranged as follows:
1 Desktop Board Features: a summary of product features
2 Installing and Replacing Desktop Board Components: instructions on how to install
the Desktop Board and other hardware components
3 Updating the BIOS: a description of how to update the BIOS
A BIOS Error Messages: information about BIOS error messages and beep codes
B Regulatory Compliance: safety and EMC regulations and product certifications
Conventions
The following conventions are used in this manual:
CAUTION
Cautions warn the user about how to prevent damage to hardware or loss of data.
NOTE
Notes call attention to important information.

Intel Desktop Board D2550DC2 Product Guide
iv
Terminology
The table below gives descriptions to some common terms used in the product guide.
Term Description
GB Gigabyte (1,073,741,824 bytes)
GHz Gigahertz (one billion hertz)
KB Kilobyte (1024 bytes)
MB
Megabyte (1,048,576 bytes)
Mb Megabit (1,048,576 bits)
MHz Megahertz (one million hertz)

v
Contents
1Desktop Board Features
Operating System Support ...................................................................................10
Desktop Board Components..................................................................................11
Processor ...........................................................................................................13
System Memory..................................................................................................13
Graphics Support ................................................................................................14
Integrated Graphics Subsystem.....................................................................14
External Graphics ........................................................................................14
Intel®NM10 Express Chipset ................................................................................15
Onboard Audio Subsystem ...................................................................................15
Legacy Input/Output (I/O) Controller.....................................................................16
LAN Subsystem...................................................................................................17
USB 2.0 Support .................................................................................................18
SATA Interface....................................................................................................18
Expandability......................................................................................................18
BIOS .................................................................................................................18
PCI/PCI Express Auto Configuration ...............................................................18
Security Passwords......................................................................................19
Hardware Management Features...........................................................................19
Power Management Features ................................................................................19
ACPI ..........................................................................................................20
Hardware Support .......................................................................................20
Battery ..............................................................................................................22
Real-Time Clock..................................................................................................22
2Installing and Replacing Desktop Board Components
Before You Begin.................................................................................................23
Installation Precautions........................................................................................25
Prevent Power Supply Overload.....................................................................25
Observe Safety and Regulatory Requirements.................................................25
Installing the I/O Shield.......................................................................................26
Installing and Removing the Desktop Board............................................................27
Installing and Removing Memory ..........................................................................28
Connecting SATA Drives.......................................................................................29
Installing a PCI Express Mini Card .........................................................................30
Installing an Intel®Z-U130 USB Solid-State Drive or Compatible Device....................32
Connecting to the Internal Headers .......................................................................33
Connecting to the Front Panel Audio Header....................................................34
Connecting to the Front Panel USB 2.0 Headers...............................................35
Connecting to the Piezoelectric Speaker Header...............................................35
Connecting to the Front Panel Header ............................................................36
Connecting to the Front Panel Wireless Activity LED Header..............................36
Connecting a System Fan.....................................................................................37
Connecting a Power Supply ..................................................................................38
Setting the BIOS Configuration Jumper..................................................................39
Clearing Passwords......................................................................................40
Replacing the Battery ..........................................................................................41

Intel Desktop Board D2550DC2 Product Guide
vi
3Updating the BIOS
Updating the BIOS with the Intel®Express BIOS Update Utility.................................47
Updating the BIOS Using the F7 Function Key.........................................................48
Updating the BIOS with the Iflash Memory Update Utility .........................................48
Obtaining the BIOS Update File .....................................................................48
Using the Iflash Memory Update Utility...........................................................49
Recovering the BIOS....................................................................................49
ABoard Status and Error Messages
BIOS Beep Codes................................................................................................51
BIOS Front-panel Power LED Blink Codes ...............................................................52
POST Error Messages...........................................................................................52
BRegulatory Compliance
Safety Standards ................................................................................................53
Battery Caution...........................................................................................53
European Union Declaration of Conformity Statement..............................................54
Product Ecology Statements .................................................................................55
Recycling Considerations ..............................................................................55
China RoHS ................................................................................................58
EMC Regulations .................................................................................................59
FCC Declaration of Conformity.......................................................................59
Canadian Department of Communications Compliance Statement......................60
Japan VCCI Statement .................................................................................60
Korea Class B Statement ..............................................................................61
Ensure Electromagnetic Compatibility (EMC) Compliance..................................61
Product Certifications...........................................................................................62
Board-Level Certifications.............................................................................62
Chassis- and Component-Level Certifications ..................................................63
ENERGY STAR*, e-Standby, and ErP Compliance.....................................................64

Contents
vii
Figures
1. Intel Desktop Board D2550DC2 Components.....................................................11
2. Back Panel Audio Connectors ..........................................................................16
3. LAN Status LEDs............................................................................................17
4. Location of the Standby Power Indicator...........................................................21
5. Installing the I/O Shield .................................................................................26
6. Intel Desktop Board D2550DC2 Mounting Screw Holes.......................................27
7. Installing System Memory ..............................................................................28
8. Connecting the Serial ATA Cable......................................................................29
9. Installing a PCI Express Mini Card....................................................................31
10. Installing an Intel Z-U130 USB Solid-State Drive (or Compatible Device)..............32
11. Internal Headers ...........................................................................................33
12. Location of the System Fan Header..................................................................37
13. Connecting Power Supply Cables .....................................................................38
14. BIOS Configuration Jumper Block ....................................................................39
15. Removing the Battery ....................................................................................45
16. Intel Desktop Board D2550DC2 China RoHS Material Self Declaration Table..........58
Tables
1. Feature Summary............................................................................................9
2. Intel Desktop Board D2550DC2 Components.....................................................12
3. Audio Jack Support........................................................................................15
4. LAN Status LEDs............................................................................................17
5. Front Panel Audio Header for Intel HD Audio .....................................................34
6. Front Panel Audio Header for AC ‘97 Audio........................................................34
7. Front Panel USB Header .................................................................................35
8. Front Panel USB Header with Intel Z-U130 USB Solid-State Drive or
Compatible Device Support.............................................................................35
9. Piezoelectric Speaker Header ..........................................................................35
10. Front Panel Header ........................................................................................36
11. Front Panel Wireless Activity LED Header..........................................................36
12. Jumper Settings for the BIOS Setup Program Modes..........................................40
13. Acceptable Drives/Media Types for BIOS Recovery.............................................49
14. BIOS Beep Codes ..........................................................................................51
15. BIOS Front-panel Power LED Blink Codes..........................................................52
16. POST Error Messages.....................................................................................52
17. Safety Standards...........................................................................................53
18. EMC Regulations............................................................................................59
19. Regulatory Compliance Marks .........................................................................62
20. ENERGY STAR Requirements...........................................................................64

Intel Desktop Board D2550DC2 Product Guide
viii

9
1 Desktop Board Features
This chapter briefly describes the main features of Intel®Desktop Board D2550DC2.
Table 1 summarizes the features of the Desktop Board.
Table 1. Feature Summary
Form Factor
Mini-ITX (170 millimeters [6.7 inches] x 170 millimeters [6.7 inches])
Processor Passively-cooled, soldered-down dual-core Intel®Atom™processor with
integrated graphics and memory controller.
Main Memory •Two 204-pin Double Data Rate 3 (DDR3) Small Outline Dual Inline
Memory Module (SO-DIMM) sockets with gold-plated contacts
•Support for DDR3 1066/1333/1600 MHz SO-DIMMs
(DDR3 1333 MHz and DDR3 1600 MHz SO-DIMMs operate at
1066 MHz only)
•
Support for up to 4 GB of system memory
Chipset
Intel
®
NM10 Express Chipset
Integrated
Graphics
Intel®Graphics Media Accelerator 3650 (Intel®GMA 3650) integrated
graphics subsystem with support for digital video (DVI) and High
Definition Multimedia Interface* (HDMI*)
External Graphics
External graphics support provided through the PCI bus connector
Audio RealTek* ALC662 audio codec for 5.1 (6-channel) Intel®High
Definition Audio (Intel®HD Audio) and AC ’97 Audio. Included are:
•Back panel audio connectors
•Back panel S/PDIF digital audio connector (optical)
•Front panel microphone/headphone header with support for Intel HD
Audio or AC ’97 Audio
Expansion
Capabilities One PCI* bus add-in card connector
One PCI Express* Full-Mini Card slot with Half-Mini Card support
Peripheral
Interfaces
•Seven USB 2.0 ports:
―Four back panel ports
―Three front panel ports (via two internal headers; one header
supports an Intel®Z-U130 USB Solid-State Drive or compatible
device
•
Two Serial ATA (SATA) 3.0 Gb/s connectors
Hardware Monitor
Subsystem Hardware monitoring through the Winbond* W83627DH-P legacy I/O
controller, including:
•Remote thermal sensor
•
One 3-pin system fan header with speed control
continued

Intel Desktop Board D2550DC2 Product Guide
10
Table 1. Feature Summary (continued)
LAN Support Intel®82574L Gigabit (10/100/1000 Mb/s) Ethernet LAN controller
BIOS •Intel®BIOS
•Support for Advanced Configuration and Power Interface (ACPI),
Plug and Play, and SMBIOS
Instantly Available
PC Technology •Support for Advanced Configuration and Power Interface (ACPI)
•Wake on USB, PCI, PCI Express, LAN, and front panel
For more information on Intel Desktop Board D2550DC2 consult the following online
resources:
To find information
about…
Visit this World Wide Web site:
Intel Desktop Board
D2550DC2 http://www.intel.com/products/motherboard/index.htm
Desktop Board Support http://www.intel.com/p/en_US/support?iid=hdr+support
Available configurations
for Intel Desktop Board
D2550DC2
http://ark.intel.com
Chipset information http://www.intel.com/products/desktop/chipsets/index.htm
BIOS and driver updates http://downloadcenter.intel.com/
Integration information http://www.intel.com/support/go/buildit
Operating System Support
For the latest information on operating system support refer to the Intel Desktop
Board D2550DC2 web page at
http://www.intel.com/products/motherboard/index.htm.

Desktop Board Features
11
Desktop Board Components
Figure 1 shows the location of the major components on Intel Desktop Board
D2550DC2.
Figure 1. Intel Desktop Board D2550DC2 Components

Intel Desktop Board D2550DC2 Product Guide
12
Table 2. Intel Desktop Board D2550DC2 Components
Label Description
A Back panel connectors
B Standby power indicator
C
Main power connector (2 x 12 pin)
D Processor
E SO-DIMM 1 slot
F SO-DIMM 0 slot
G
Intel NM10 Express Chipset
H SATA connectors
I System fan header
J Front panel header
K
BIOS configuration jumper block
L Battery
M USB front panel header
N Front panel wireless activity LED header
O
Piezoelectric speaker header
P PCI Express Full-Mini Card slot
Q PCI bus connector
R Front panel audio header
S
USB front panel header with Intel Z-U130 USB Solid-State Drive (or
compatible device) support

Desktop Board Features
13
Processor
Intel Desktop Board D2550DC2 includes a passively-cooled, dual-core Intel Atom
processor with integrated graphics and memory controller. The processor is soldered
to the Desktop Board and is not customer upgradeable.
NOTE
The board is designed to be passively cooled in a properly ventilated chassis. Chassis
venting locations are recommended above the processor heatsink area for maximum
heat dissipation effectiveness.
System Memory
NOTE
To be fully compliant with all applicable Intel®SDRAM memory specifications, the
board should be populated with DIMMs that support the Serial Presence Detect (SPD)
data structure. If your memory modules do not support SPD, you will see a
notification to this effect on the screen at power up. The BIOS will attempt to
configure the memory controller for normal operation.
The Desktop Board has two 204-pin DDR3 SO-DIMM sockets with gold-plated contacts.
These sockets support:
•Support for DDR3 1066/1333/1600 MHz SO-DIMMs (DDR3 1333 MHz and
DDR3 1600 MHz SO-DIMMs operate at 1066 MHz only)
•Serial Presence Detect (SPD) memory only
•Non-ECC memory
•Up to 4 GB of memory

Intel Desktop Board D2550DC2 Product Guide
14
Graphics Support
Integrated Graphics Subsystem
The Intel GMA 3650 integrated graphics subsystem features the following:
•640 MHz core frequency
•High quality texture engine
DX10.1c* and OpenGL* 3.0 compliant
Hardware Pixel Shader 4.1
Vertex Shader Model 4.1
•Video
Blu-ray* 2.0
J.264 and VC1 hardware decoder
PAVP 1.1c
HDCP 1.3
•Displays
HDMI
Digital Visual Interface (DVI)
High-Definition Multimedia Interface* (HDMI*)
The Desktop Board supports standard, enhanced, or high-definition video, plus HD
multi-channel digital audio on a single cable via a back panel HDMI port. The
maximum supported resolution is 1920 x 1080 at a 60 Hz refresh rate. The HDMI port
is compliant with the HDMI 1.3 specification.
Digital Visual Interface
The Desktop Board supports Digital Visual Interface (DVI) displays with a DVI-D back
panel port.
The DVI-D port supports only digital DVI displays. The maximum supported resolution
is 1920 x 1200 at a 60 Hz refresh rate. The DVI-D port is compliant with the DVI 1.0
specification.
External Graphics
Intel Desktop Board D2550DC2 supports external graphics cards via the PCI bus
connector (see Figure 1, Q).

Desktop Board Features
15
Intel® NM10 Express Chipset
The Intel NM10 Express Chipset is a centralized controller for the board’s I/O paths.
For more information about the Intel NM10 Express Chipset, go to
http://www.intel.com/products/chipsets/index.htm?iid=prod+prod_chipset.
Onboard Audio Subsystem
The onboard audio subsystem supports both Intel HD Audio and AC ’97 Audio. The
subsystem is based on the following components:
•Intel NM10 Express Chipset
•RealTek ALC662 audio codec
The subsystem includes the following headers and connectors:
•Three back panel analog audio jacks
•Back panel S/PDIF digital audio output connector (optical)
•Back panel HDMI connector
•Front panel audio header (supports both Intel HD Audio and AC ’97 Audio),
including functionality for:
―Line out (headphones/speaker)
―Microphone in
The board supports 2-channel audio output from the back panel analog ports with jack
detection as indicated in Table 3. The front/back panel audio connectors are
configurable through the audio device driver control panel.
Table 3. Audio Jack Support
Audio Jack Microphone Headphones Line Out Line In
Front panel – Green Default
Front panel – Pink Default
Back panel – Blue Default
Back panel – Green Control Panel Default
Back panel – Pink Default

Intel Desktop Board D2550DC2 Product Guide
16
Figure 2 shows the default assignment of the back panel audio connectors.
Item Description
A Line In
B Line Out
C Mic In
Figure 2. Back Panel Audio Connectors
NOTE
The back panel audio line out connector is designed to power amplified speakers or
headphones only. Poor audio quality occurs if passive (non-amplified) speakers are
connected to this output.
Legacy Input/Output (I/O) Controller
The legacy I/O controller provides the following:
•Low pin count (LPC) interface
•Serial IRQ interface compatible with serialized IRQ support for PCI systems
•Intelligent power management, including a programmable wake up event interface
•PCI power management support
•Low pin count (LPC) interface

Desktop Board Features
17
LAN Subsystem
The LAN subsystem consists of the following:
•Intel NM10 Express Chipset
•Intel 82574L Gigabit Ethernet Controller for 10/100/1000 Mb/s Ethernet LAN
connectivity
•RJ-45 LAN connector with integrated status LEDs
Additional features of the LAN subsystem include:
•CSMA/CD protocol engine
•LAN connect interface that supports the Ethernet controller
•Conventional PCI bus power management
Supports ACPI technology
Supports LAN wake capabilities
LAN drivers are available from Intel’s World Wide Web site at
http://downloadcenter.intel.com/.
Two LEDs are built into the RJ-45 LAN connector located on the back panel (see
Figure 3). These LEDs indicate the operating states of the LAN.
Figure 3. LAN Status LEDs
Table 4 describes the LED states when the board is powered up and the LAN
subsystem is operating.
Table 4. LAN Status LEDs
LED LED Color LED State Indicates
Activity (A)
Green
Blinking
LAN activity is occurring.
Speed (B)
N/A
Off
10 Mb/s data rate is selected.
Green On 100 Mb/s data rate is selected.
Yellow On 1000 Mb/s data rate is selected.

Intel Desktop Board D2550DC2 Product Guide
18
USB 2.0 Support
The Desktop Board supports up to seven USB 2.0 ports (four ports routed to the back
panel and three ports routed to two front panel USB 2.0 headers). One of the front
panel USB headers supports an Intel Z-U130 USB Solid-State Drive or compatible
device.The USB 2.0 ports are compatible with USB 1.1 devices. USB 1.1 devices will
function normally at USB 1.1 speeds.
USB 2.0 support requires both an operating system and drivers that fully support
USB 2.0 transfer rates. Disabling High-Speed USB in the BIOS reverts all USB 2.0
ports to USB 1.1 operation. This may be required to accommodate operating systems
that do not support USB 2.0.
NOTE
Computer systems that have an unshielded cable attached to a USB port might not
meet FCC Class B requirements, even if no device or a low-speed USB device is
attached to the cable. Use a shielded cable that meets the requirements for a
full-speed USB device.
SATA Interface
The Desktop Board supports two SATA channels (3.0 Gb/s) that support one device
per channel. The SATA controller supports IDE and ACHI configuration and can
operate in both legacy and native modes.
Expandability
The Desktop Board provides the following expansion capability:
•One PCI bus connector. The connector can support either a single PCI add-in card
or a single- or dual-slot PCI riser card.
•One PCI Express Full-Mini Card slot (compatible with Full- and Half-Mini cards).
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI
and SATA auto-configuration utilities, and the video BIOS.
PCI/PCI Express Auto Configuration
If you install a PCI/PCI Express add-in card in your computer, the PCI/PCI Express
auto-configuration utility in the BIOS automatically detects and configures the
resources (IRQs, DMA channels, and I/O space) for that add-in card. You do not need
to run the BIOS Setup program after you install a PCI/PCI Express add-in card.

Desktop Board Features
19
Security Passwords
The BIOS includes security features that restrict whether the BIOS Setup program can
be accessed and who can boot the computer. A supervisor password and a user
password can be set for the BIOS Setup and for booting the computer, with the
following restrictions:
•The supervisor password gives unrestricted access to view and change all Setup
options. If only the supervisor password is set, pressing <Enter> at the password
prompt of Setup gives the user restricted access to Setup.
•If both the supervisor and user passwords are set, you must enter either the
supervisor password or the user password to access Setup. Setup options are then
available for viewing and changing depending on whether the supervisor or user
password was entered.
•Setting a user password restricts who can boot the computer. The password
prompt is displayed before the computer is booted. If only the supervisor
password is set, the computer boots without asking for a password. If both
passwords are set, you can enter either password to boot the computer.
For instructions on resetting the password, see Clearing Passwords on page 40.
Hardware Management Features
The board’s hardware management features enable the board to be compatible with
the Wired for Management (WfM) specification. The board’s hardware management
features include thermal and voltage monitoring.
The hardware monitoring and fan control subsystem is based on the Winbond
W83627DH-P legacy I/O controller, which supports the following:
•Processor and system ambient temperature monitoring
•System fan speed monitoring
•Power monitoring of +12 V, +5 V, +5 Vstdby, +3.3 V, and +VCCP
•SMBus interface
Power Management Features
Power management is implemented at several levels, including:
•Software support through the Advanced Configuration and Power Interface (ACPI)
•Hardware support:
―Power connector
―Fan header
―+5 V standby power indicator LED
―LAN Wake capabilities
―Instantly Available PC technology
―Wake from USB
―PME# wakeup support
―WAKE# signal wakeup support

Intel Desktop Board D2550DC2 Product Guide
20
ACPI
ACPI gives the operating system direct control over the power management and Plug
and Play functions of a computer. The use of ACPI with the Desktop Board requires an
operating system that provides full ACPI support.
Hardware Support
Fan Header
The Desktop Board has a 3-pin system fan header. See Figure 12 on page 37 for the
location of the system fan header.
+5 V Standby Power Indicator
CAUTION
If the AC power has been switched off and the standby power indicator is still lit,
disconnect the power cord before installing or removing any devices connected to the
board. Failure to do so could damage the board and any attached devices.
The Desktop Board’s standby power indicator, shown in Figure 4, is lit when there is
standby power to the system. This includes the SO-DIMM sockets and the PCI bus
connector, even though the computer appears to be off.