Intel D425KT User manual

Intel® Desktop Board D425KT
Product Guide
Order Number: E95572-001

Revision History
Revision Revision History Date
-001 First release of the Intel®Desktop Board D425KT Product
Guide
June 2010
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
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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 D425KT 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:
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Intel, the Intel logo, and Intel Atom are trademarks of Intel Corporation in the U. S. and other countries.
* Other names and brands may be claimed as the property of others.
Copyright © 2010 Intel Corporation. All rights reserved.

iii
Preface
This Product Guide gives information about board layout, component installation, and
regulatory requirements for Intel®Desktop Board D425KT.
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 D425KT 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)
Mbit Megabit (1,048,576 bits)
MHz Megahertz (one million hertz)

v
Contents
1Desktop Board Features
Desktop Board Components.................................................................................11
Processor..........................................................................................................13
System Memory.................................................................................................13
Integrated Graphics Subsystem ...........................................................................14
Intel®NM10 Express Chipset ...............................................................................14
Operating System Support ..................................................................................14
Onboard Audio Subsystem ..................................................................................14
Legacy Input/Output (I/O) Controller ....................................................................15
LAN Subsystem .................................................................................................16
USB 2.0 Support................................................................................................17
SATA Interface ..................................................................................................17
Expandability.....................................................................................................17
BIOS................................................................................................................17
PCI Auto Configuration ................................................................................17
Security Passwords.....................................................................................18
Power Management Features ...............................................................................18
ACPI.........................................................................................................18
Hardware Support ......................................................................................18
Battery.............................................................................................................21
Real-Time Clock.................................................................................................21
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
Connecting to the Internal Headers ......................................................................30
Connecting to the Front Panel Audio Header ...................................................31
Connecting to the Serial Port Header .............................................................31
Connecting to the Front Panel Header............................................................32
Connecting to the Front Panel USB 2.0 Headers ..............................................32
Connecting a Chassis Fan....................................................................................33
Connecting a Power Supply .................................................................................34
Setting the BIOS Configuration Jumper .................................................................35
Clearing Passwords.....................................................................................36
Replacing the Battery .........................................................................................37
3Updating the BIOS
Updating the BIOS with the Intel®Express BIOS Update Utility.................................43
Updating the BIOS with the Iflash Memory Update Utility.........................................44
Obtaining the BIOS Update File ....................................................................44
Using the Iflash Memory Update Utility ..........................................................44
Recovering the BIOS...................................................................................45

Intel Desktop Board D425KT Product Guide
vi
ABoard Status and Error Messages
BIOS Beep Codes...............................................................................................47
BIOS Front-panel Power LED Blink Codes ..............................................................48
POST Error Messages..........................................................................................48
BRegulatory Compliance
Safety Standards ...............................................................................................49
Battery Caution ..........................................................................................49
European Union Declaration of Conformity Statement..............................................50
Product Ecology Statements ................................................................................51
Recycling Considerations .............................................................................51
China RoHS ...............................................................................................54
EMC Regulations ................................................................................................55
FCC Declaration of Conformity......................................................................55
Canadian Department of Communications Compliance Statement......................56
Japan VCCI Statement ................................................................................56
Korea Class B Statement .............................................................................57
Ensure Electromagnetic Compatibility (EMC) Compliance..................................57
Product Certifications..........................................................................................58
Board-Level Certifications ............................................................................58
Chassis- and Component-Level Certifications..................................................59
ENERGY STAR*, e-Standby, and ErP Compliance ....................................................60

Contents
vii
Figures
1. Intel Desktop Board D425KT Components........................................................11
2. Back Panel Audio Connectors .........................................................................15
3. LAN Status LEDs ..........................................................................................16
4. Location of the Standby Power Indicator ..........................................................19
5. Installing the I/O Shield ................................................................................26
6. Intel Desktop Board D425KT Mounting Screw Holes...........................................27
7. Installing System Memory .............................................................................28
8. Connecting the Serial ATA Cable .....................................................................29
9. Internal Headers ..........................................................................................30
10. Location of the Chassis Fan Header .................................................................33
11. Connecting Power Supply Cables ....................................................................34
12. BIOS Configuration Jumper Block....................................................................35
13. Removing the Battery ...................................................................................41
14. Intel Desktop Board D425KT China RoHS Material Self Declaration Table ..............54
Tables
1. Feature Summary.......................................................................................... 9
2. Intel Desktop Board D425KT Components........................................................12
3. Audio Jack Support .......................................................................................15
4. LAN Status LEDs ..........................................................................................16
5. Front Panel Audio Header for Intel HD Audio.....................................................31
6. Front Panel Audio Header for AC ‘97 Audio .......................................................31
7. Serial Port Header (COM 1)............................................................................31
8. Front Panel Header Signal Names ...................................................................32
9. Front Panel USB Headers ...............................................................................32
10. Jumper Settings for the BIOS Setup Program Modes..........................................36
11. AcceptableDrives/Media Types for BIOS Recovery .............................................45
12. BIOS Beep Codes .........................................................................................47
13. BIOS Front-panel Power LED Blink Codes .........................................................48
14. POST Error Messages ....................................................................................48
15. Safety Standards..........................................................................................49
16. EMC Regulations...........................................................................................55
17. Regulatory Compliance Marks.........................................................................58
18. ENERGY STAR Requirements ..........................................................................60

Intel Desktop Board D425KT Product Guide
viii

9
1 Desktop Board Features
This chapter briefly describes the main features of Intel®Desktop Board D425KT.
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 single-core Intel®Atom™processor
with integrated graphics and memory controllers.
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 800/1066/1333 MHz SO-DIMMs (DDR3 1066 MHz
and DDR3 1333 MHz SO-DIMMs operate at 800 MHz only)
•Support for up to 4 GB of system memory
Chipset Intel®NM10 Express Chipset
Integrated
Graphics
Intel®Graphics Media Accelerator 3150 (Intel®GMA 3150) integrated
graphics subsystem with support for analog displays (VGA)
Audio RealTek* ALC662 audio codec for 4-channel Intel®High Definition
Audio (Intel®HD Audio) and AC ’97 Audio. Included are:
•Back panel connectors
•Front panel microphone/headphone header with support for
Intel®HD Audio or AC ’97 Audio
Expansion
Capabilities One PCI* bus add-in card connector
Peripheral
Interfaces
•Eight USB 2.0 ports:
―Four back panel ports
―Four front panel ports via two internal headers
•Two Serial ATA (SATA) 3.0 Gb/s connectors
Legacy I/O Control Winbond* W83627DGH-A legacy I/O controller providing:
•One serial port header
•One serial port back panel connector
•One parallel port back panel connector
•PS/2 keyboard and mouse connectors
Hardware Monitor
Subsystem Hardware monitoring through the Winbond legacy I/O controller,
including:
•Remote thermal sensor
•One 3-pin chassis fan header with speed control
LAN Support 10/100 Mb/s Ethernet LAN Subsystem using a RealTek* 8105E
Ethernet Controller

Intel Desktop Board D425KT Product Guide
10
BIOS •Intel®BIOS
•Support for Advanced Configuration and Power Interface (ACPI),
Plug and Play, and SMBIOS
Instantly Available
PC Technology
•Support for PCI Local Bus Specification, Revision 2.3
•Support for Advanced Configuration and Power Interface (ACPI)
•Wake on USB, PCI, PS/2, LAN, serial, and front panel
For more information on Intel Desktop Board D425KT consult the following online
resources:
To find information
about…
Visit this World Wide Web site:
Intel Desktop Board
D425KT
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
D425KT
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