Intel Dg41Mj Users Manual Desktop Board Product Guide

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Intel® Desktop Board DG41MJ
Product Guide
Order Number: E59138-001

Revision History
Revision
-001

Revision History
First release of the Intel® Desktop Board DG41MJ Product Guide

Date
February 2009

If an FCC declaration of conformity marking is present on the board, the following statement applies:

FCC Declaration of Conformity
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
For questions related to the EMC performance of this product, contact:
Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124
1-800-628-8686
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and the receiver.
•
Connect the equipment to an outlet on a circuit other than the one to which the receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications to the equipment not expressly approved by Intel Corporation could void the
user’s authority to operate the equipment.
Tested to comply with FCC standards for home or office use.

Canadian Department of Communications Compliance Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set
out in the Radio Interference Regulations of the Canadian Department of Communications.
Le présent appareil numerique német pas de bruits radioélectriques dépassant les limites applicables aux
appareils numériques de la classe B prescrites dans le Réglement sur le broullage radioélectrique édicté par
le ministére des Communications du Canada.

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 DG41MJ 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, 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.
Copyright © 2009, Intel Corporation. All rights reserved.

Preface
This Product Guide gives information about board layout, component installation, BIOS
update, and regulatory requirements for Intel® Desktop Board DG41MJ.

Intended Audience
The Product Guide is intended for technically qualified personnel. It is not intended for
general audiences.

Use Only for Intended Applications
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

Installing and Replacing Desktop Board Components: instructions on how to install
the Desktop Board and other hardware components

Updating the BIOS: instructions on how to update the BIOS

Error Messages and Indicators: information about BIOS error messages and beep
codes

Regulatory Compliance: information about safety standards, EMC regulations, and
product certifications

iii

Intel Desktop Board DG41MJ Product Guide

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.

Terminology
The table below gives descriptions of some common terms used in the product guide.

Term

Description

Gigabyte (1,073,741,824 bytes)

Gigabit (1,073,741,824 bits)

GHz

Gigahertz (one billion hertz)

Kilobyte (1024 bytes)

Megabyte (1,048,576 bytes)

Megabit (1,048,576 bits)

MHz

Megahertz (one million hertz)

Contents
1 Desktop Board Features
Desktop Board Components.................................................................................11
Processor..........................................................................................................12
Main Memory.....................................................................................................13
Intel® G41 Express Chipset .................................................................................14
Graphics Support........................................................................................14
Intel® GMA X4500 Graphics Controller....................................................14
DVI Support .......................................................................................14
Audio Subsystem ...............................................................................................15
Legacy Input/Output (I/O) Controller ....................................................................15
LAN Subsystem .................................................................................................16
USB 2.0 Support ................................................................................................17
Serial ATA.........................................................................................................17
Expandability.....................................................................................................17
BIOS ................................................................................................................17
Serial ATA and IDE Auto Configuration...........................................................17
PCI* Auto Configuration ..............................................................................17
Security Passwords .....................................................................................18
Hardware Management Features ..........................................................................18
Hardware Monitoring and Fan Speed Control ..................................................18
Power Management Features ...............................................................................19
ACPI .........................................................................................................19
Hardware Support ......................................................................................19
Power Connectors ...............................................................................19
Fan Headers .......................................................................................20
LAN Wake Capabilities..........................................................................20
Instantly Available PC Technology..........................................................20
+5 V Standby Power Indicator LED ........................................................21
Wake from USB Support.......................................................................22
PME# Signal Wake-up Support..............................................................22
Wake From PS/2 Devices......................................................................22
Wake From Serial Devices ....................................................................22
ENERGY STAR* Capable ..............................................................................22
Speaker............................................................................................................22
Battery .............................................................................................................22
Real-Time Clock.................................................................................................22

2 Installing and Replacing Desktop Board Components
Before You Begin ...............................................................................................23
Installation Precautions.......................................................................................24
Prevent Power Supply Overload ....................................................................24
Observe Safety and Regulatory Requirements.................................................24
Installing the I/O Shield ......................................................................................25
Installing and Removing the Desktop Board ...........................................................26
Installing and Removing a Processor .....................................................................27
Installing a Processor ..................................................................................27
Installing the Processor Fan Heat Sink ...........................................................31

Intel Desktop Board DG41MJ Product Guide

Connecting the Processor Fan Heat Sink Cable................................................31
Removing the Processor ..............................................................................31
Installing and Removing Memory..........................................................................32
Installing DIMMs ........................................................................................33
Removing DIMMs........................................................................................35
Using the Serial ATA (SATA) Cables ......................................................................35
Connecting a Standard SATA Drive................................................................36
Connecting a Slimline SATA Drive .................................................................37
Connecting to the Internal Headers and Connectors ................................................38
Front Panel Audio Header ............................................................................39
Chassis Intrusion Header .............................................................................39
USB 2.0 Headers ........................................................................................40
Serial Port Header ......................................................................................40
Alternate Front Panel Power LED Header ........................................................41
Front Panel Header .....................................................................................41
Connecting to the Back Panel Audio Connectors......................................................42
Connecting Chassis Fan and Power Supply Cables...................................................43
Connecting a Chassis Fan Cable....................................................................43
Connecting Supply Power Cables ..................................................................44
Setting the BIOS Configuration Jumper .................................................................45
Clearing Passwords ............................................................................................46
Replacing the Battery .........................................................................................47

3 Updating the BIOS
Updating the BIOS with the Intel® Express BIOS Update Utility.................................53
Updating the BIOS with the ISO Image BIOS Update File or the Iflash Memory Update
Utility .........................................................................................................54
Obtaining the BIOS Update File ....................................................................54
Updating the BIOS with the ISO Image BIOS Update File .................................54
Updating the BIOS with the Iflash Memory Update Utility .................................55
Recovering the BIOS ...................................................................................56

A Error Messages and Indicators
BIOS Beep Codes ...............................................................................................57
BIOS Error Messages ..........................................................................................57

B Regulatory Compliance
Safety Standards ...............................................................................................59
Place Battery Marking .................................................................................59
European Union Declaration of Conformity Statement..............................................60
Product Ecology Statements ................................................................................61
Recycling Considerations .............................................................................61
Lead-Free Desktop Board.............................................................................63
EMC Regulations ................................................................................................65
Ensure Electromagnetic Compatibility (EMC) Compliance ..................................66
Product Certifications..........................................................................................67
Board-Level Certification Markings ................................................................67
Chassis and Component Certifications............................................................68

Contents

Figures
1. Intel Desktop Board DG41MJ Components ........................................................11
2. LAN Connector LEDs ......................................................................................16
3. Location of the Standby Power Indicator ...........................................................21
4. Installing the I/O Shield .................................................................................25
5. Intel Desktop Board DG41MJ Mounting Screw Hole Locations...............................26
6. Lift the Socket Lever ......................................................................................27
7. Lift the Load Plate .........................................................................................28
8. Remove the Protective Socket Cover ................................................................28
9. Remove the Processor from the Protective Processor Cover .................................29
10. Install the Processor .....................................................................................29
11. Close the Load Plate......................................................................................30
12. Connecting the Processor Fan Heat Sink Cable to the Processor Fan Header ..........31
13. Dual Channel Memory Configuration Example ...................................................32
14. Use DDR2 DIMMs .........................................................................................33
15. Installing a DIMM .........................................................................................34
16. Using the Standard SATA Cable ......................................................................36
17. Using the SATA-to-Slimline SATA Adapter Cable................................................37
18. Internal Headers and Connectors ....................................................................38
19. Back Panel Audio Connectors..........................................................................42
20. Location of the Chassis Fan Header .................................................................43
21. Connecting Power Supply Cables.....................................................................44
22. Location of the BIOS Configuration Jumper Block ..............................................45
23. Removing the Battery ...................................................................................51

Tables
1. Feature Summary ........................................................................................... 9
2. Intel Desktop Board DG41MJ Components.........................................................12
3. Audio Jack Retasking Support..........................................................................15
4. LAN Connector LEDs ......................................................................................16
5. Front Panel Audio Signal Names for Intel HD Audio.............................................39
6. Front Panel Audio Header Signal Names for AC’97 Audio .....................................39
7. Chassis Intrusion Header Signal Names ............................................................39
8. USB 2.0 Header Signal Names .........................................................................40
9. Serial Port Header Signal Names......................................................................40
10. Alternate Front Panel Power LED Header Signal Names ......................................41
11. Front Panel Header Signal Names....................................................................41
12. Jumper Settings for the BIOS Setup Program Modes ..........................................46
13. Beep Codes..................................................................................................57
14. BIOS Error Messages.....................................................................................57
15. Safety Standards ..........................................................................................59
16. Lead-Free Board Markings..............................................................................64
17. EMC Regulations...........................................................................................65
18. Product Certification Markings ........................................................................67

vii

Intel Desktop Board DG41MJ Product Guide

viii

1 Desktop Board Features
This chapter briefly describes the features of Intel® Desktop Board DG41MJ. Table 1
summarizes the major features of the Desktop Board.
Table 1. Feature Summary
Form Factor

Mini-ITX (170.18 millimeters [6.70 inches] x 170.18 millimeters
[6.70 inches])

Processor

Support for an Intel® processor in the LGA775 package

Main Memory

• Two 240-pin, DDR2 SDRAM Dual Inline Memory Module (DIMM)
sockets
• 800/667 MHz single or dual channel DDR2 SDRAM interface
• Support for up to 8 GB of system memory

Chipset

Intel® G41 Express Chipset consisting of:
• Intel G41 Express Chipset Graphics and Memory Controller Hub
(GMCH) with Intel® Graphics Media Accelerator X4500 (Intel® GMA
X4500)
• Intel® 82801GB I/O Controller Hub (ICH7)

Graphics

• Intel G41 Express Chipset Graphics and Memory Controller Hub
(GMCH)
• Integrated graphics (Intel® GMA X4500) with VGA and DVI-D
outputs
• One PCI* bus connector supporting PCI graphics cards

Audio

• 5.1 channel in single-stream mode or 4 + 2 channel in multistreaming mode, featuring:
―

Realtek* ALC888VC audio codec

― Support for Intel® High Definition Audio (Intel® HD Audio) and
AC ’97 Audio
LAN Support

Realtek 8111D Gigabit Ethernet Controller for operation at
10/100/1000 Mb/s

Expansion
Capabilities

• One PCI bus connector

Peripheral
Interfaces

• Up to eight USB 2.0 ports:
―

Four ports routed to the back panel

―

Four ports routed to two USB headers

• Three Serial ATA (SATA) channels (3.0 Gb/s) via ICH7
• One serial port header
• PS/2* keyboard port on the back panel
continued

Intel Desktop Board DG41MJ Product Guide

Table 1. Feature Summary (continued)
BIOS

• Intel® Platform Innovation Framework for extensible firmware
interface
• 8 Mb symmetrical flash memory device
• Support for SMBIOS
• Intel® Rapid BIOS Boot
• Intel® Express BIOS Update

Power Management

• Support for Advanced Configuration and Power Interface (ACPI)
• Suspend to RAM (STR)
• Wake on USB, LAN, PS/2, and front panel
• ENERGY STAR* capable

Hardware Monitor

• Voltage sense to detect out of range power supply voltages
• Thermal sense to detect out of range temperatures
• Two fan headers
• Two fan sense inputs to monitor fan speed

Supported
Operating Systems

The Desktop Board supports the following operating systems:
• Microsoft Windows Vista* Home Premium
• Microsoft Windows Vista Home Basic
• Microsoft Windows Vista Home Premium 64-bit edition
• Microsoft Windows Vista Home Basic 64-bit edition
• Microsoft Windows* XP Media Center Edition 2005
• Microsoft Windows XP Professional
• Microsoft Windows XP Professional x64 Edition
• Microsoft Windows XP Home

For more information on Intel Desktop Board DG41MJ consult the following online
resources:

To find information
about…

Visit this World Wide Web site:

Intel Desktop Board
DG41MJ

http://www.intel.com/products/motherboard/DG41MJ/index.htm

Desktop Board Support

http://support.intel.com/support/motherboards/desktop/DG41MJ

Available configurations
for Intel Desktop Board
DG41MJ

http://www.intel.com/products/motherboard/DG41MJ/index.htm

Supported processors

http://processormatch.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

Desktop Board Features

Desktop Board Components
Figure 1 shows the approximate location of the major components on Intel Desktop
Board DG41MJ.

Figure 1. Intel Desktop Board DG41MJ Components

Intel Desktop Board DG41MJ Product Guide

Table 2. Intel Desktop Board DG41MJ Components
Label

Description

Front panel audio header

Back panel connectors

12 V processor core voltage connector (2 x 2 pin)

High-speed USB 2.0 headers (2)

BIOS configuration jumper block

Alternate front panel power LED header

Processor socket

Chassis fan header

Processor fan header

Serial port header

Main power connector (2 x 12 pin)

Battery

Speaker

DDR2 Channel B DIMM 0 socket

DDR2 Channel A DIMM 0 socket

Front panel header

Serial ATA connectors (3)

PCI bus connector

Processor
CAUTION
Failure to use an appropriate power supply and/or not connecting the 12 V (2 x 2 pin)
power connector to the Desktop Board may result in damage to the board, or the
system may not function properly.
Intel Desktop Board DG41MJ supports an Intel processor in the LGA775 package.
Processors are not included with the Desktop Board and must be purchased
separately. The processor connects to the Desktop Board through the LGA775 socket
(Figure 1, G).
For instructions on installing a processor, refer to page 27 in Chapter 2.

Desktop Board Features

Main 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 DIMM sockets that support the memory features listed
below:
•
•

•

DDR2 SDRAM DIMMs with the option in the BIOS setup to raise the voltage to
support higher performance DDR2 SDRAM DIMMs
Support for:
⎯ Non-ECC DDR2 800/667 MHz memory
⎯ Serial Presence Detect (SPD) memory only
⎯ Unbuffered, non-registered single- or double-sided DIMMs
⎯ Memory configurations listed below:
• Up to 2.0 GB utilizing 256 Mb technology
• Up to 8.0 GB utilizing 512 Mb or 1 Gb technology
A minimum of 512 MB of total memory is required

NOTE
System resources and hardware require physical memory address locations that can
reduce available addressable system memory. This could result in a reduction of as
much as 1 GB or more of physical addressable memory being available to the
operating system and applications, depending on the system configuration and
operating system.
For instructions on installing memory, refer to page 32 in Chapter 2.

Intel Desktop Board DG41MJ Product Guide

Intel® G41 Express Chipset
The Intel G41 Express Chipset consists of the following devices:
•
•

Intel G41 Express Chipset Graphics and Memory Controller Hub (GMCH) with Direct
Media Interface (DMI)
Intel 82801GB I/O Controller Hub (ICH7) with DMI

The GMCH component provides interfaces to the processor, memory, PCI, and the DMI
interconnect. The component also provides integrated graphics capabilities supporting
3D, 2D, and display capabilities. ICH7 is a centralized controller for the board’s I/O
paths.

Graphics Support
The Intel G41 Express Chipset supports two separate, mutually exclusive graphics
options. Either the integrated Intel® Graphics Media Accelerator X4500 (Intel®
GMA X4500) graphics controller is used or a PCI graphics add-in card can be used.
When a PCI graphics add-in card is installed, the Intel GMA X4500 graphics controller
is disabled.
The GMA X4500 graphics controller supports dual independent displays via the VGA
and DVI-D connectors on the Desktop Board back panel.

Intel® GMA X4500 Graphics Controller
The Intel GMA X4500 graphics controller has the following features:
•

•

Advanced graphics performance, including:
⎯ DirectX10.0* and OpenGL* 2.0 compliant
⎯ Shader Model 4.0 support
Enhanced video playback support, including:
⎯ Software DVD at 30 fps full screen
⎯ Dynamic Video Memory Technology (DVMT) 5.0
Advanced display support, including:
⎯ High Definition Content Protection (HDCP) version 1.1 support
⎯ Support for all HD display resolutions including 720p, 1080i, and 1080p
⎯ Support for digital and analog displays up to 2048 x 1536 at 75 Hz refresh rate
(QXGA); also supports 1920 x 1080 resolution for full High Definition video
playback quality

DVI Support
The DVI-D port supports digital DVI displays. The maximum supported resolution is
2048 x 1536 at 75 Hz (QXGA). The DVI port is compliant with the DVI 1.0
specification.

Desktop Board Features

Audio Subsystem
The onboard audio subsystem consists of the following:
•
•
•
•

Intel® ICH7
Realtek ALC888VC audio codec
Back panel audio connectors (see Figure 19)
Front panel audio header supporting both Intel High Definition Audio and AC ’97
Audio (see Figure 18, A)

The audio subsystem supports the following features:
•
•

A signal-to-noise (S/N) ratio of 95 dB
Independent 5.1 audio playback from the back panel connectors and stereo
playback from the Intel High Definition Audio front panel header

Table 3 lists the supported functions for the front panel and back panel audio jacks.
Table 3. Audio Jack Retasking Support
Jack

Mic

Line out

Headphones

Line in

Rear
Surround

Center/
Subwoofer

Front Panel
Green

Yes

Pink

Yes

Back Panel
Blue

Yes

Green

Yes

Pink

Yes

Legacy Input/Output (I/O) Controller
The Winbond 83627DHG-P legacy I/O controller provides the following functions:
•
•
•
•
•

One serial port interface via an onboard header
One parallel port
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

Intel Desktop Board DG41MJ Product Guide

LAN Subsystem
The LAN subsystem includes:
•
•
•

Intel ICH7
Realtek 8111D-GR Gigabit Ethernet Controller for operation at 10/100/1000 Mb/s
RJ-45 LAN connector with integrated status LEDs

The subsystem features:
• CSMA/CD protocol engine
• LAN connect interface between ICH7 and the LAN controller
• PCI bus power management
Two LEDs are built into the RJ-45 LAN connector located on the back panel (see
Figure 2). These LEDs indicate the status of the LAN.

Figure 2. LAN Connector LEDs
Table 4 describes the LED states when the board is powered up and the LAN
subsystem is operating.
Table 4. LAN Connector LEDs
LED

LED Color

LED State

Indicates

A (Link)

Green

Off

LAN link is not established.

LAN link is established.

Blinking

LAN activity is occurring.

Off

10 Mb/s data rate is selected.

B (Data
Rate)

N/A
Green

100 Mb/s data rate is selected.

Yellow

1000 Mb/s data rate is selected.

Desktop Board Features

USB 2.0 Support
The Desktop Board supports up to eight USB 2.0 ports (four ports routed to the back
panel and four ports routed to two internal headers) via ICH7. USB 2.0 ports are
backward 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 Hi-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.

Serial ATA
The Desktop Board supports three Serial ATA channels (3.0 Gb/s) via ICH7, connecting
one device per channel.

Expandability
For system expansion, the Desktop Board includes one PCI bus connector.

BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI
and IDE auto-configuration utilities, and the video BIOS. The BIOS is stored in the
Serial Peripheral Interface (SPI) Flash component.
The BIOS can be updated by following the instructions on page 53 in Chapter 3.

Serial ATA and IDE Auto Configuration
If you install a Serial ATA or IDE device (such as a hard drive) in your computer, the
auto-configuration utility in the BIOS automatically detects and configures the device
for your computer. You do not need to run the BIOS Setup program after installing a
Serial ATA or IDE device. You can override the auto-configuration options by
specifying manual configuration in the BIOS Setup program.

PCI* Auto Configuration
If you install a PCI add-in card in your computer, the PCI 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 add-in card.

Intel Desktop Board DG41MJ Product Guide

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 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 46.

Hardware Management Features
The hardware management features of Intel Desktop Board DG41MJ enable the board
to be compatible with the Wired for Management (WfM) specification. The board has
several hardware management features including the following:
•
•

Fan speed monitoring and control
Thermal and voltage monitoring

Hardware Monitoring and Fan Speed Control
Features of the board’s hardware monitoring and fan speed control include:
•
•

•
•

Monitoring of power supply voltages to detect levels above and below acceptable
values.
Smart fan control provided by the legacy I/O controller, delivering acousticallyoptimized thermal management. Fan speed controllers and sensors are integrated
into the legacy I/O controller.
Thermally monitored closed-loop fan control, for onboard fans, that can adjust fan
speed according to thermal conditions.
Two thermal sensors (processor and a remote thermal sensor).

Desktop Board Features

Power Management Features
Power management is implemented at several levels, including:
•
•

•

Software support through the Advanced Configuration and Power Interface (ACPI)
Hardware support:
⎯ Power connectors
⎯ Fan headers
⎯ LAN wake capabilities
⎯ Instantly Available PC technology (Suspend to RAM)
⎯ +5 V standby power indicator LED
⎯ Wake from USB
⎯ Power Management Event signal (PME#) wake-up support
⎯ Wake from PS/2 devices
⎯ Wake from serial port
ENERGY STAR capable

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
Power Connectors
ATX12V-compliant power supplies can turn off the computer power through system
control. When an ACPI-enabled computer receives the correct command, the power
supply removes all non-standby voltages.
When resuming from an AC power failure, the computer returns to the power state it
was in before power was interrupted (either on or off). The computer’s response can
be set by using the Last Power State feature in the BIOS Setup program’s Boot menu.
The Desktop Board has two power connectors. See Figure 21 on page 44 for the
location of the power connectors.

Intel Desktop Board DG41MJ Product Guide

Fan Headers
The function/operation of the fans is as follows:
•
•
•

•
•

The fans are on when the computer is in the ACPI S0 state.
The fans are off when the computer is in the ACPI S3, S4, or S5 state.
The processor fan header is wired to a fan tachometer input. The chassis fan
header has an independent tachometer input to the hardware monitoring and fan
control device.
All fan headers support closed-loop fan control that can adjust the fan speed
according to thermal conditions.
All fan headers have a +12 V DC connection.

The Desktop Board has a 4-pin processor fan header and a 3-pin chassis fan header.

LAN Wake Capabilities
CAUTION
For LAN wake capabilities, the 5 V standby line for the power supply must be capable
of delivering adequate +5 V standby current. Failure to provide adequate standby
current when using this feature can damage the power supply.
LAN wakeup capabilities enable remote wake-up of the computer through a network.
The LAN subsystem monitors network traffic and upon detecting a Magic Packet*
frame, it asserts a wake-up signal that powers up the computer.

Instantly Available PC Technology
CAUTIONS
For Instantly Available PC technology, the 5 V standby line for the power supply must
be capable of delivering adequate +5 V standby current. Failure to provide adequate
standby current when using this feature can damage the power supply and/or effect
ACPI S3 sleep state functionality.
Power supplies used with this Desktop Board must be able to provide enough standby
current to support the standard Instantly Available (ACPI S3 sleep state) configuration.
If the standby current necessary to support multiple wake events from the PCI and/or
USB buses exceeds power supply capacity, the Desktop Board may lose register
settings stored in memory.
Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-toRAM) sleep state. While in the S3 sleep state, the computer will appear to be off. If
the computer has a dual-colored power LED on the front panel, the sleep state is
indicated by the LED turning amber. When signaled by a wake-up device or event, the
computer quickly returns to its last known awake state.

Desktop Board Features

The Desktop Board supports the PCI Bus Power Management Interface Specification.
Add-in cards that support this specification can participate in power management and
can be used to wake the computer.

+5 V Standby Power Indicator LED
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 3, is lit when there is
standby power still present on the board even when the computer appears to be off.
For example, when this LED is lit, standby power is still present at the memory module
sockets and the PCI bus connector.

Figure 3. Location of the Standby Power Indicator
For more information on standby current requirements for the Desktop Board, refer to
the Technical Product Specification at
http://www.intel.com/products/motherboard/DG41MJ/index.htm.

Intel Desktop Board DG41MJ Product Guide

Wake from USB Support
NOTE
Wake from USB requires the use of a USB peripheral that supports Wake from USB.
USB bus activity wakes the computer from an ACPI S1 or S3 state.

PME# Signal Wake-up Support
When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI
S1, S3, S4, or S5 (LAN only) state.

Wake From PS/2 Devices
PS/2 device activity wakes the computer from an ACPI S1 or S3 state.

Wake From Serial Devices
Serial port activity wakes the computer from an ACPI S1 or S3 state.

ENERGY STAR* Capable
In 2007, the US Department of Energy and the US Environmental Protection Agency
revised the ENERGY STAR requirements. Intel worked directly with these two
governmental agencies to define the new requirements. This Desktop Board meets
the ENERGY STAR Category B requirements.
For more information concerning ENERGY STAR, go to
http://www.intel.com/go/EnergyStar

Speaker
A speaker is mounted on the Desktop Board. The speaker provides audible error code
(beep code) information during the Power-On Self-Test (POST).

Battery
A battery on the Desktop Board keeps the values in CMOS RAM and the clock current
when the computer is turned off. Go to page 47 for instructions on how to replace the
battery.

Real-Time Clock
The Desktop Board has a time-of-day clock and 100-year calendar. The battery on the
Desktop Board keeps the clock current when the computer is turned off.

2 Installing and Replacing Desktop
Board Components
This chapter tells you how to:
•
•
•
•
•
•
•
•
•
•
•

Install the I/O shield
Install and remove the Desktop Board
Install and remove a processor
Install and remove memory
Use the Serial ATA cables
Connect to the internal headers and connectors
Connect to the audio system
Connect chassis fan and power supply cables
Set the BIOS configuration jumper
Clear passwords
Replace the battery

Before You Begin
CAUTION
The procedures in this chapter assume familiarity with the general terminology
associated with personal computers and with the safety practices and regulatory
compliance required for using and modifying electronic equipment.
Disconnect the computer from its power source and from any telecommunications
links, networks, or modems before performing any of the procedures described in this
chapter. Failure to disconnect power, telecommunications links, networks, or modems
before you open the computer or perform any procedures can result in personal injury
or equipment damage. Some circuitry on the board can continue to operate even
though the front panel power button is off.
Follow these guidelines before you begin:
•
•
•

Always follow the steps in each procedure in the correct order.
Set up a log to record information about your computer, such as model, serial
numbers, installed options, and configuration information.
Electrostatic discharge (ESD) can damage components. Perform the procedures
described in this chapter only at an ESD workstation using an antistatic wrist strap
and a conductive foam pad. If such a station is not available, you can provide
some ESD protection by wearing an antistatic wrist strap and attaching it to a
metal part of the computer chassis.

Intel Desktop Board DG41MJ Product Guide

Installation Precautions
When you install and test the Intel Desktop Board, observe all warnings and cautions
in the installation instructions.
To avoid injury, be careful of:
•
•
•
•
•

Sharp pins on connectors
Sharp pins on printed circuit assemblies
Rough edges and sharp corners on the chassis
Hot components (such as processors, voltage regulators, and heat sinks)
Damage to wires that could cause a short circuit

Observe all warnings and cautions that instruct you to refer computer servicing to
qualified technical personnel.

Prevent Power Supply Overload
Do not overload the power supply output. To avoid overloading the power supply,
make sure that the calculated total current loads of all the modules within the
computer is less than the output current rating of each of the power supply output
circuits.

Observe Safety and Regulatory Requirements
Read and adhere to the instructions in this section and the instructions supplied with
the chassis and associated modules. If you do not follow these instructions and the
instructions provided by the chassis and module suppliers, you increase safety risk and
the possibility of noncompliance with regional laws and regulations. If the instructions
for the chassis are inconsistent with these instructions or the instructions for
associated modules, contact the supplier’s technical support to find out how you can
ensure that your computer meets safety and regulatory requirements.
Related Links
For information about regulatory compliance, go to Appendix B on page 59.

Installing and Replacing Desktop Board Components

Installing the I/O Shield
The Desktop Board comes with an I/O shield. When installed in the chassis, the shield
blocks radio frequency transmissions, protects internal components from dust and
foreign objects, and promotes correct airflow within the chassis.
Install the I/O shield before installing the Desktop Board in the chassis. Place the
shield inside the chassis as shown in Figure 4. Press the shield into place so that it fits
tightly and securely. If the shield does not fit, obtain a properly sized shield from the
chassis supplier.

Figure 4. Installing the I/O Shield

Intel Desktop Board DG41MJ Product Guide

Installing and Removing the Desktop Board
CAUTION
Only qualified technical personnel should do this procedure. Disconnect the computer
from its power source before performing the procedures described here. Failure to
disconnect the power before you open the computer can result in personal injury or
equipment damage.
Refer to your chassis manual for instructions on installing and removing the Desktop
Board.
Figure 5 shows the location of the mounting screw holes for Intel Desktop Board
DG41MJ.

Figure 5. Intel Desktop Board DG41MJ Mounting Screw Hole Locations

Installing and Replacing Desktop Board Components

Installing and Removing a Processor
Instructions on how to install the processor to the Desktop Board are given below.

Installing a Processor
CAUTION
Before installing or removing the processor, make sure the AC power has been
removed by unplugging the power cord from the computer; the standby power LED
should not be lit (see Figure 3 on page 21). Failure to do so could damage the
processor and the board.
To install a processor, follow these instructions:
1. Observe the precautions in "Before You Begin" on page 23.
2. Open the socket lever by pushing the lever down and away from the socket
(Figure 6, A and B).

Figure 6. Lift the Socket Lever

Intel Desktop Board DG41MJ Product Guide

3. Lift the load plate (Figure 7, A). Do not touch the socket contacts (Figure 7, B).

Figure 7. Lift the Load Plate
4. Remove the plastic protective socket cover from the load plate (Figure 8). Do not
discard the protective socket cover. Always replace the socket cover if the
processor is removed from the socket.

Figure 8. Remove the Protective Socket Cover

Installing and Replacing Desktop Board Components

5. Remove the processor from the protective processor cover. Hold the processor
only at the edges, being careful not to touch the bottom of the processor
(Figure 9). Do not discard the protective processor cover. Always replace the
processor cover if the processor is removed from the socket.

Figure 9. Remove the Processor from the Protective Processor Cover
6. Hold the processor with your thumb and index fingers oriented as shown in
Figure 10. Make sure your fingers align to the socket cutouts (Figure 10, A). Align
notches (Figure 10, B) with the socket (Figure 10, C). Lower the processor straight
down without tilting or sliding it in the socket.

Figure 10. Install the Processor

Intel Desktop Board DG41MJ Product Guide

7. Pressing down on the load plate (Figure 11, A), close and engage the socket lever
(Figure 11, B).

Figure 11. Close the Load Plate

Installing and Replacing Desktop Board Components

Installing the Processor Fan Heat Sink
Intel Desktop Board DG41MJ has mounting holes for a processor fan heat sink. For
instructions on how to attach the processor fan heat sink to the Desktop Board, refer
to the boxed processor manual.

Connecting the Processor Fan Heat Sink Cable
Connect the processor fan heat sink cable to the 4-pin processor fan header (see
Figure 12). A fan with a 4-pin connector as shown in Figure 12, A is recommended;
however, a fan with a 3-pin connector (Figure 12, B) can be used. However, since the
fan with a 3-pin connector cannot use the onboard fan control, the fan will always
operate at full speed.

Figure 12. Connecting the Processor Fan Heat Sink Cable to the
Processor Fan Header

Removing the Processor
For instructions on how to remove the processor fan heat sink and processor, refer to
the processor installation manual.

Intel Desktop Board DG41MJ Product Guide

Installing and Removing Memory
NOTE
To be fully compliant with all applicable Intel SDRAM memory specifications, the board
requires DIMMs that support the Serial Presence Detect (SPD) data structure.
The Desktop Board has two 240-pin DDR2 DIMM sockets providing Channel A and
Channel B. For optimum dual-channel performance, install a matched pair of DIMMs
equal in speed and size (see Figure 13).

Figure 13. Dual Channel Memory Configuration Example

NOTE
All other memory configurations will result in single channel memory operation.

Installing and Replacing Desktop Board Components

Installing DIMMs
To make sure you have the correct DIMM, place it on the illustration of the DDR2
DIMM in Figure 14. All the notches should match with the DDR2 DIMM.

Figure 14. Use DDR2 DIMMs

Intel Desktop Board DG41MJ Product Guide

To install a DIMM, follow these steps:
1. Observe the precautions in "Before You Begin" on page 23.
2. Turn off all peripheral devices connected to the computer. Turn off the computer
and disconnect the AC power cord.
3. Remove the computer’s cover and locate the DIMM sockets (see Figure 15).

Figure 15. Installing a DIMM
4. Make sure the clips at either end of the DIMM socket(s) are pushed outward to the
open position.
5. Holding the DIMM by the edges, remove it from its anti-static package.
6. Position the DIMM above the socket. Align the small notch at the bottom edge of
the DIMM with the keys in the socket (see inset in Figure 15).
7. Insert the bottom edge of the DIMM into the socket.
8. When the DIMM is inserted, push down on the top edge of the DIMM until the
retaining clips snap into place. Make sure the clips are firmly in place.
9. Replace the computer’s cover and reconnect the AC power cord.

Installing and Replacing Desktop Board Components

Removing DIMMs
To remove a DIMM, follow these steps:
1.
2.
3.
4.
5.

Observe the precautions in "Before You Begin" on page 23.
Turn off all peripheral devices connected to the computer. Turn off the computer.
Remove the AC power cord from the computer.
Remove the computer’s cover.
Gently spread the retaining clips at each end of the DIMM socket. The DIMM pops
out of the socket.
6. Hold the DIMM by the edges, lift it away from the socket, and store it in an
anti-static package.
7. Reinstall and reconnect any parts you removed or disconnected to reach the DIMM
sockets.
8. Replace the computer’s cover and reconnect the AC power cord.

Using the Serial ATA (SATA) Cables
Two SATA cables are provided with the Desktop Board:
•
•

a standard SATA data cable
a SATA-to-Slimline SATA adapter cable (with power) that allows you to connect a
Slimline SATA drive to the board

Each cable can be used to connect a single internal SATA drive to the Desktop Board.

Intel Desktop Board DG41MJ Product Guide

Connecting a Standard SATA Drive
You can use the standard SATA data cable supplied to connect a standard SATA drive
to the Desktop Board.
For correct cable function:
1. Observe the precautions in “Before You Begin” on page 23.
2. Attach one end of the SATA data cable to one of the SATA connectors on the board
(Figure 16, A) and attach the other end of the cable to the SATA drive
(Figure 16, B).

Figure 16. Using the Standard SATA Cable

Installing and Replacing Desktop Board Components

Connecting a Slimline SATA Drive
You can use the SATA-to-Slimline SATA adapter cable to connect a slimline SATA drive
to a standard SATA data connector on the Desktop Board. This adapter splits a
Slimline SATA connector into a standard SATA data cable and a power connector which
plugs into a 4-pin 5 V Molex* power connector from an ATX12V power supply.
For correct adapter cable function:
1. Observe the precautions in “Before You Begin” on page 23.
2. Attach the adapter cable’s standard SATA data connector (Figure 17, A) to one of
the SATA data connectors on the Desktop Board and attach the adaptor cable’s
Slimline connector to the corresponding connector (Figure 17, B) on the Slimline
SATA drive.
3. Connect the adapter cable’s power connector (Figure 17, C) to a 4-pin 5 V Molex
power connector from the chassis power supply.

Figure 17. Using the SATA-to-Slimline SATA Adapter Cable

Intel Desktop Board DG41MJ Product Guide

Connecting to the Internal Headers and
Connectors
Before connecting cables to the internal headers and connectors, observe the
precautions in “Before You Begin” on page 23. Figure 18 shows the location of the
internal headers and connectors for Intel Desktop Board DG41MJ.

Figure 18. Internal Headers and Connectors

Installing and Replacing Desktop Board Components

Front Panel Audio Header
The front panel audio header shown in Figure 18, A on page 38 supports both Intel HD
Audio and AC’97 Audio. Table 5 shows the pin assignments and signal names for Intel
HD Audio and Table 6 shows the pin assignments and signal names for AC’97 Audio.
Table 5. Front Panel Audio Signal Names for Intel HD Audio
Pin

Signal Name

PORT 1L (Microphone)

GND

PORT 1R (Microphone)

PRESENCE#

PORT 2R (Headphone)

SENSE1_RETURN

SENSE_SEND

KEY (no pin)

PORT 2L (Headphone)

SENSE2_RETURN

Table 6. Front Panel Audio Header Signal Names for AC’97 Audio
Pin

Signal Name

MIC

AUD_GND

MIC_BIAS

AUD_GND

FP_OUT_R

FP_RETURN_R

AUD_5V

KEY (no pin)

FP_OUT_L

FP_RETURN_L

Chassis Intrusion Header
Figure 18, B on page 38 shows the location of the chassis intrusion header. This
header can be connected to a mechanical switch on the chassis to detect if the chassis
cover is removed.
Table 7 shows the pin assignments for the chassis intrusion header.
Table 7. Chassis Intrusion Header Signal Names
Pin

Description

Intruder

Ground

Intel Desktop Board DG41MJ Product Guide

USB 2.0 Headers
Before connecting to the USB 2.0 headers, observe the precautions in "Before You
Begin" on page 23. See Figure 18, C on page 38 for the location of the USB 2.0
headers. Table 8 shows the pin assignments for each USB 2.0 header. Each USB
header can be used to connect two USB devices.
Table 8. USB 2.0 Header Signal Names
USB Port A
Pin
1
3
5
7
9

USB Port B

Signal Name
Power (+5 V)
DD+
Ground
Key

Pin
2
4
6
8
10

Signal Name
Power (+5 V)
DD+
Ground
No Connection

Note: USB ports may be assigned as needed.

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.

Serial Port Header
See Figure 18, D on page 38 for the location of the serial port header. Table 9 shows
the pin assignments for the serial port header.
Table 9. Serial Port Header Signal Names

Signal Name

DCD

RXD#

TXD#

DTR

Ground

DSR

RTS

CTS

No Connection

Installing and Replacing Desktop Board Components

Alternate Front Panel Power LED Header
Figure 18, E on page 38 shows the location of the alternate front panel power LED
header. Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front
panel header. If your chassis has a three-pin power LED cable, connect it to this
header.
Table 10 shows the pin assignments for the alternate front panel power LED header.
Table 10. Alternate Front Panel Power LED Header Signal Names
Pin

Description

In/Out

Front panel green LED

Out

No pin

Front panel yellow LED

Out

Front Panel Header
Before connecting to the front panel header, observe the precautions in "Before You
Begin" on page 23. See Figure 18, F on page 38 for the location of the multi-colored
front panel header.
Table 11 shows the pin assignments for the front panel header.
Table 11. Front Panel Header Signal Names
Pin

Description

In/Out

Description

Hard Drive Activity LED

In/Out

Power LED

Hard disk LED pull-up to +5 V Out

Front panel green LED

Out

Hard disk active LED

Front panel yellow LED

Out

Reset Switch
5

Ground

Reset switch

On/Off Switch
In

Power switch

Ground

Power
9

Power

Not Connected
Out

No pin

Intel Desktop Board DG41MJ Product Guide

Connecting to the Back Panel Audio
Connectors
After the audio driver has been installed, the multi-channel audio feature can be
enabled. Figure 19 shows the back panel audio connectors. The default connector
assignments are shown in the figure. Refer to Table 3 on page 15 for audio connector
retasking information.

Item

Description

Line In

Line Out

Mic In

Figure 19. Back Panel Audio Connectors

NOTE
The back panel line out connector is designed to power either headphones or amplified
speakers only. Poor audio quality may occur if passive (non-amplified) speakers are
connected to this output.

Installing and Replacing Desktop Board Components

Connecting Chassis Fan and Power Supply
Cables
Connecting a Chassis Fan Cable
Connect your chassis fan cable to the 3-pin chassis fan header on the Desktop Board.
Figure 20 shows the location of the chassis fan header.

Figure 20. Location of the Chassis Fan Header

Intel Desktop Board DG41MJ Product Guide

Connecting Supply Power Cables
CAUTION
Failure to use an appropriate power supply and/or not connecting the 12 V (2 x 2 pin)
power connector to the Desktop Board may result in damage to the board or the
system may not function properly.
The 2 x 12 pin main power connector on the Desktop Board is backwards compatible
with ATX12V power supplies with 2 x 10 connectors. Figure 21 shows the location of
the Desktop Board power connectors.

Figure 21. Connecting Power Supply Cables
1. Observe the precautions in "Before You Begin" on page 23.
2. Connect the main power supply cable to the 2 x 12 pin connector.
3. Connect the 12 V processor core voltage power supply cable to the 2 x 2 pin
connector.

Installing and Replacing Desktop Board Components

Setting the BIOS Configuration Jumper
NOTE
Always turn off the power and unplug the power cord from the computer before
moving the jumper. Moving the jumper with the power on may result in unreliable
computer operation.
Figure 22 shows the location of the Desktop Board’s BIOS configuration jumper block.

Figure 22. Location of the BIOS Configuration Jumper Block
The three-pin BIOS jumper block enables all board configurations to be done in the
BIOS Setup program. Table 12 shows the jumper settings for the BIOS Setup
program modes.

Intel Desktop Board DG41MJ Product Guide

Table 12. Jumper Settings for the BIOS Setup Program Modes
Jumper Setting

Mode

Description

Normal (default) (1-2)

The BIOS uses the current configuration and
passwords for booting.

Configure (2-3)

After the Power-On Self-Test (POST) runs, the
BIOS displays the Maintenance Menu. Use this
menu to clear passwords.

Recovery (None)

The BIOS recovers data in the event of a failed
BIOS update.

Clearing Passwords
This procedure assumes that the board is installed in the computer and the
configuration jumper block is set to normal mode.
1. Observe the precautions in "Before You Begin" on page 23.
2. Turn off all peripheral devices connected to the computer. Turn off the computer.
Disconnect the computer’s power cord from the AC power source (wall outlet or
power adapter).
3. Remove the computer cover.
4. Find the configuration jumper block (see Figure 22).
5. Place the jumper on pins 2-3 as shown below.

6. Replace the cover, plug in the computer, turn on the computer, and allow it to
boot.
7. The computer starts the Setup program. Setup displays the Maintenance menu.
8. Use the arrow keys to select Clear Passwords. Press and Setup displays a
pop-up screen requesting that you confirm clearing the password. Select Yes and
press . Setup displays the maintenance menu again.
9. Press to save the current values and exit Setup.
10. Turn off the computer. Disconnect the computer’s power cord from the AC power
source.
11. Remove the computer cover.

Installing and Replacing Desktop Board Components

12. To restore normal operation, place the jumper on pins 1-2 as shown below.

13. Replace the cover, plug in the computer, and turn on the computer.

Replacing the 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.
When the voltage drops below a certain level, the BIOS Setup program settings stored
in CMOS RAM (for example, the date and time) might not be accurate. Replace the
battery with an equivalent one. Figure 23 on page 51 shows the location of the
battery.

CAUTION
Risk of explosion if the battery is replaced with an incorrect type. Batteries should be
recycled where possible. Disposal of used batteries must be in accordance with local
environmental regulations.

PRÉCAUTION
Risque d'explosion si la pile usagée est remplacée par une pile de type incorrect. Les
piles usagées doivent être recyclées dans la mesure du possible. La mise au rebut des
piles usagées doit respecter les réglementations locales en vigueur en matière de
protection de l'environnement.

FORHOLDSREGEL
Eksplosionsfare, hvis batteriet erstattes med et batteri af en forkert type. Batterier
bør om muligt genbruges. Bortskaffelse af brugte batterier bør foregå i
overensstemmelse med gældende miljølovgivning.

OBS!
Det kan oppstå eksplosjonsfare hvis batteriet skiftes ut med feil type. Brukte batterier
bør kastes i henhold til gjeldende miljølovgivning.

VIKTIGT!
Risk för explosion om batteriet ersätts med felaktig batterityp. Batterier ska kasseras
enligt de lokala miljövårdsbestämmelserna.

Intel Desktop Board DG41MJ Product Guide

VARO
Räjähdysvaara, jos pariston tyyppi on väärä. Paristot on kierrätettävä, jos se on
mahdollista. Käytetyt paristot on hävitettävä paikallisten ympäristömääräysten
mukaisesti.

VORSICHT
Bei falschem Einsetzen einer neuen Batterie besteht Explosionsgefahr. Die Batterie
darf nur durch denselben oder einen entsprechenden, vom Hersteller empfohlenen
Batterietyp ersetzt werden. Entsorgen Sie verbrauchte Batterien den Anweisungen
des Herstellers entsprechend.

AVVERTIMENTO
Esiste il pericolo di un esplosione se la pila non viene sostituita in modo corretto.
Utilizzare solo pile uguali o di tipo equivalente a quelle consigliate dal produttore. Per
disfarsi delle pile usate, seguire le istruzioni del produttore.

PRECAUCIÓN
Existe peligro de explosión si la pila no se cambia de forma adecuada. Utilice
solamente pilas iguales o del mismo tipo que las recomendadas por el fabricante del
equipo. Para deshacerse de las pilas usadas, siga igualmente las instrucciones del
fabricante.

WAARSCHUWING
Er bestaat ontploffingsgevaar als de batterij wordt vervangen door een onjuist type
batterij. Batterijen moeten zoveel mogelijk worden gerecycled. Houd u bij het
weggooien van gebruikte batterijen aan de plaatselijke milieuwetgeving.

ATENÇÃO
Haverá risco de explosão se a bateria for substituída por um tipo de bateria incorreto.
As baterias devem ser recicladas nos locais apropriados. A eliminação de baterias
usadas deve ser feita de acordo com as regulamentações ambientais da região.

AŚCIAROŽZNAŚĆ
Існуе рызыка выбуху, калі заменены акумулятар неправільнага тыпу.
Акумулятары павінны, па магчымасці, перепрацоўвацца. Пазбаўляцца ад старых
акумулятараў патрэбна згодна з мясцовым заканадаўствам па экалогіі.

UPOZORNÌNÍ
V případě výměny baterie za nesprávný druh může dojít k výbuchu. Je-li to možné,
baterie by měly být recyklovány. Baterie je třeba zlikvidovat v souladu s místními
předpisy o životním prostředí.

Installing and Replacing Desktop Board Components

Προσοχή
Υπάρχει κίνδυνος για έκρηξη σε περίπτωση που η μπαταρία αντικατασταθεί από μία
λανθασμένου τύπου. Οι μπαταρίες θα πρέπει να ανακυκλώνονται όταν κάτι τέτοιο είναι
δυνατό. Η απόρριψη των χρησιμοποιημένων μπαταριών πρέπει να γίνεται σύμφωνα με
τους κατά τόπο περιβαλλοντικούς κανονισμούς.

VIGYÁZAT
Ha a telepet nem a megfelelő típusú telepre cseréli, az felrobbanhat. A telepeket
lehetőség szerint újra kell hasznosítani. A használt telepeket a helyi környezetvédelmi
előírásoknak megfelelően kell kiselejtezni.

AWAS
Risiko letupan wujud jika bateri digantikan dengan jenis yang tidak betul. Bateri
sepatutnya dikitar semula jika boleh. Pelupusan bateri terpakai mestilah mematuhi
peraturan alam sekitar tempatan.

OSTRZEŻENIE
Istnieje niebezpieczeństwo wybuchu w przypadku zastosowania niewłaściwego typu
baterii. Zużyte baterie należy w miarę możliwości utylizować zgodnie z odpowiednimi
przepisami ochrony środowiska.

PRECAUŢIE
Risc de explozie, dacă bateria este înlocuită cu un tip de baterie necorespunzător.
Bateriile trebuie reciclate, dacă este posibil. Depozitarea bateriilor uzate trebuie să
respecte reglementările locale privind protecţia mediului.

ВНИМАНИЕ
При использовании батареи несоответствующего типа существует риск ее взрыва.
Батареи должны быть утилизированы по возможности. Утилизация батарей должна
проводится по правилам, соответствующим местным требованиям.

UPOZORNENIE
Ak batériu vymeníte za nesprávny typ, hrozí nebezpečenstvo jej výbuchu. Batérie by
sa mali podľa možnosti vždy recyklovať. Likvidácia použitých batérií sa musí vykonávať
v súlade s miestnymi predpismi na ochranu životného prostredia.

Intel Desktop Board DG41MJ Product Guide

POZOR
Zamenjava baterije z baterijo drugačnega tipa lahko povzroči eksplozijo.
Če je mogoče, baterije reciklirajte. Rabljene baterije zavrzite v skladu z lokalnimi
okoljevarstvenimi predpisi.

UYARI
Yanlış türde pil takıldığında patlama riski vardır. Piller mümkün olduğunda geri
dönüştürülmelidir. Kullanılmış piller, yerel çevre yasalarına uygun olarak atılmalıdır.

OСТОРОГА
Використовуйте батареї правильного типу, інакше існуватиме ризик вибуху.
Якщо можливо, використані батареї слід утилізувати. Утилізація використаних
батарей має бути виконана згідно місцевих норм, що регулюють охорону довкілля.

Installing and Replacing Desktop Board Components

To replace the battery, follow these steps:
1. Observe the precautions in "Before You Begin" (see page 23).
2. Turn off all peripheral devices connected to the computer. Disconnect the
computer’s power cord from the AC power source (wall outlet or power adapter).
3. Remove the computer cover.
4. Locate the battery on the board (see Figure 23).
5. Push the battery retention clip aside and remove the battery from the connector as
shown in Figure 23. Note the orientation of the “+” and “-” on the battery.
6. Install the new battery in the connector, making sure to orient the “+” and “-”
correctly.
7. Replace the computer cover.

Figure 23. Removing the Battery

Intel Desktop Board DG41MJ Product Guide

3 Updating the BIOS
The BIOS Setup program can be used to view and change the BIOS settings for the
computer. You can access the BIOS Setup program by pressing the key after
the Power-On Self-Test (POST) memory test begins and before the operating system
boot begins.
This chapter tells you how to update the BIOS by either using the Intel Express BIOS
Update utility or the Iflash Memory Update utility, and how to recover the BIOS if an
update fails.

Updating the BIOS with the Intel® Express
BIOS Update Utility
With the Intel Express BIOS Update utility you can update the system BIOS while in
the Microsoft Windows environment. The BIOS file is included in an automated update
utility that combines the functionality of the Intel® Flash Memory Update Utility and
the ease of use of Windows-based installation wizards.
To update the BIOS with the Intel Express BIOS Update utility:
1. Go to the Intel World Wide Web site at
http://support.intel.com/support/motherboards/desktop/
2. Navigate to the Intel Desktop Board DG41MJ page, click “Latest BIOS,” and select
the Express BIOS Update utility file.
3. Download the file to your hard drive. (You can also save this file to a removable
USB device. This is useful if you are updating the BIOS for multiple identical
systems.)
4. Close all other applications. This step is required. Your system will be rebooted at
the last Express BIOS Update window.
5. Double-click the executable file from the location on your hard drive where it was
saved. This runs the update program.
6. Follow the instructions provided in the dialog boxes to complete the BIOS update.

Intel Desktop Board DG41MJ Product Guide

Updating the BIOS with the ISO Image BIOS
Update File or the Iflash Memory Update
Utility
You can use the information in this section to update the BIOS using either the Iflash
Memory Update Utility or the ISO Image BIOS update file.

Obtaining the BIOS Update File
You can update to a new version of the BIOS by using the ISO Image BIOS update file
(recommended), or Iflash BIOS update file.
The ISO Image BIOS update file is a standardized image of a bootable CD-ROM that
can be used to create a bootable CD that will update the BIOS.
The Iflash BIOS update file is a compressed file that contains the files you need to
update the BIOS. The Iflash BIOS update file contains:
•
•
•

New BIOS file
Intel® Integrator Toolkit Configuration File (optional)
Intel Flash Memory Update Utility

You can obtain either of these files through your computer supplier or by navigating to
the Intel Desktop Board DG41MJ page on the Intel World Wide Web site at
http://support.intel.com/support/motherboards/desktop
Navigate to the Intel Desktop Board DG41MJ page, click “Latest BIOS,” and select the
ISO Image BIOS Update or Iflash BIOS Update utility file.

Updating the BIOS with the ISO Image BIOS Update
File
The ISO Image BIOS update allows for the update of an Intel® Desktop Board BIOS to
the latest production release regardless of the operating system installed on the
computer's hard drive and without the need to remove the BIOS configuration jumper.
It requires a blank CD-R, a read/writeable CD drive, and software capable of
uncompressing and writing the ISO image file to CD.
The image uses ISOLINUX* bootloader and automatically launches a script to upgrade
the BIOS via the Iflash utility.

CAUTION
Do not interrupt the process or the system may not function properly.

Updating the BIOS

Follow these instructions to upgrade the BIOS using the ISO Image BIOS file:
1. Download the ISO Image BIOS file.
2. Using software capable of uncompressing and writing an ISO image file to CD, burn
the data to a blank CD.

NOTE
Copying the ISO Image BIOS file to CD will not work. The completed CD should
contain multiple files and a directory.
3. Insert the CD that was created in the CD-ROM drive of the computer to be
upgraded and boot the system.
4. When the "Press ENTER to continue booting from CD-ROM" prompt appears, press
the Enter key. The system will boot from the hard drive if no key is pressed within
15 seconds.
5. At the "Welcome to the Intel Desktop Board BIOS Upgrade CD-ROM" page, press
any key to confirm the BIOS upgrade operation.
6. Wait for the BIOS upgrade process to complete.

CAUTION
DO NOT POWER DOWN YOUR COMPUTER before the update is complete. The update
may take up to 5 minutes.

Updating the BIOS with the Iflash Memory Update
Utility
With the Iflash Memory update utility you can update the system BIOS from a
bootable CD-ROM, bootable USB flash drive, or other bootable USB media. The utility
available on the Intel World Wide Web site provides a simple method for creating a
bootable CD-ROM that will automatically update your BIOS. The Iflash BIOS update
files can also be extracted locally to your hard drive and copied to a bootable USB
flash drive or other bootable USB media.
The Iflash Memory update utility allows you to:
•
•

Update the BIOS in flash memory
Update the language section of the BIOS

NOTE
Review the instructions distributed with the update utility before attempting a BIOS
update.

CAUTION
Do not interrupt the process or the system may not function properly.

Intel Desktop Board DG41MJ Product Guide

1. Uncompress the BIOS update file and copy the .BIO file, IFLASH.EXE, and .ITK file
(optional) to a bootable USB flash drive or other bootable USB media.
2. Configure the BIOS or use the F10 option during POST to boot to the USB device.
3. Manually run the IFLASH.EXE file from the USB device and manually update the
BIOS.

Recovering the BIOS
It is unlikely that anything will interrupt the BIOS update; however, if an interruption
occurs, the BIOS could be damaged. Due to BIOS size and recovery requirements, a
CD-R with the .BIO file in the root directory will be required.
Related Links
For more information about updating the Intel Desktop Board BIOS or recovering from
a BIOS update failure, go to
http://support.intel.com/support/motherboards/desktop/sb/CS-022312.htm

A Error Messages and Indicators
Intel Desktop Board DG41MJ reports POST errors in two ways:
•
•

By sounding a beep code
By displaying an error message on the monitor

BIOS Beep Codes
The BIOS also issues a beep code (one long tone followed by two short tones) during
POST if the video configuration fails (a faulty video card or no card installed) or if an
external ROM module does not properly checksum to zero. Table 13 lists the BIOS
codes.
Table 13. Beep Codes
Beep

Description

No memory

Siren

Processor overheat (on reboot)

BIOS Error Messages
When a recoverable error occurs during the POST, the BIOS displays an error message
describing the problem. Table 14 gives an explanation of the BIOS error messages.
Table 14. BIOS Error Messages
Error Message

Explanation

PROCESSOR_THERMAL_TRIP_ERROR

Processor was previously shutdown due to a thermal event
(overheating).

MULTI_BIT_ECC_ERROR

The firmware has detected that a Multi-Bit ECC Error occurred.

SINGLE_BIT_ECC_ERROR

The firmware has detected that a Single-Bit ECC Error occurred.

CMOS_BATTERY_ERROR

The firmware has detected that a CMOS battery failure occurred.

CMOS_CHECKSUM_ERROR

The firmware has detected that a CMOS Checksum Error occurred.

CMOS_TIMER_ERROR

The firmware has detected that the system date/time has not
been set.

MEMORY_SIZE_DECREASE_ERROR

The firmware has detected that the system memory has
decreased.

INTRUDER_DETECTION_ERROR

The system chassis was opened.

SPD_TOLER_ERROR

SERIAL PRESENCE DETECT (SPD) device data missing or
inconclusive. Properly programmed SPD device data is required
for reliable operation.

MEM_OPTIMAL_ERROR

The installed amount of memory in Channel A is not equal to the
amount of memory in Channel B. Maximum memory performance
is achieved with equal amounts of memory installed in each
channel.

Intel Desktop Board DG41MJ Product Guide

B Regulatory Compliance
This appendix contains the following regulatory compliance information for Intel
Desktop Board DG41MJ:
•
•
•
•
•

Safety standards
European Union Declaration of Conformity statement
Product Ecology statements
Electromagnetic Compatibility (EMC) regulations
Product certifications

Safety Standards
Intel Desktop Board DG41MJ complies with the safety standards stated in Table 15
when correctly installed in a compatible host system.
Table 15. Safety Standards
Regulation

Title

UL 60950-1, First Edition

Information Technology Equipment – Safety - Part 1: General
Requirements (USA and Canada)

EN 60950-1:2006, Second
Edition

Information Technology Equipment – Safety - Part 1: General
Requirements (European Union)

IEC 60950-1:2005, Second
Edition

Information Technology Equipment – Safety - Part 1: General
Requirements (International)

Place Battery Marking
There is insufficient space on this Desktop Board to provide instructions for replacing
and disposing of the Lithium ion coin cell battery. For system safety certification, the
statement below or an equivalent statement is required to be permanently and legibly
marked on the chassis near the battery.

Intel Desktop Board DG41MJ Product Guide

European Union Declaration of Conformity
Statement
We, Intel Corporation, declare under our sole responsibility that the product
Intel® Desktop Board DG41MJ is in conformity with all applicable essential
requirements necessary for CE marking, following the provisions of the European
Council Directives 2004/108/EC (EMC Directive) and 2006/95/EC (Low Voltage
Directive).
The product is properly CE marked demonstrating this conformity and is for
distribution within all member states of the EU with no restrictions.

This product follows the provisions of the European Directives 2004/108/EC and
2006/95/EC.

Čeština Tento výrobek odpovídá požadavkům evropských směrnic 2004/108/EC a
2006/95/EC.
Dansk Dette produkt er i overensstemmelse med det europæiske direktiv
2004/108/EC & 2006/95/EC.
Dutch Dit product is in navolging van de bepalingen van Europees Directief
2004/108/EC & 2006/95/EC.
Eesti Antud toode vastab Euroopa direktiivides 2004/108/EC ja 2006/95/EC
kehtestatud nõuetele.
Suomi Tämä tuote noudattaa EU-direktiivin 2004/108/EC & 2006/95/EC määräyksiä.
Français Ce produit est conforme aux exigences de la Directive Européenne
2004/108/EC & 2006/95/EC.
Deutsch Dieses Produkt entspricht den Bestimmungen der Europäischen Richtlinie
2004/108/EC & 2006/95/EC.
Ελληνικά Το παρόν προϊόν ακολουθεί τις διατάξεις των Ευρωπαϊκών Οδηγιών
2004/108/EC και 2006/95/EC.
Magyar E termék megfelel a 2004/108/EC és 2006/95/EC Európai Irányelv
előírásainak.
Icelandic Þessi vara stenst reglugerð Evrópska Efnahags Bandalagsins númer
2004/108/EC & 2006/95/EC.
Italiano Questo prodotto è conforme alla Direttiva Europea 2004/108/EC &
2006/95/EC.
Latviešu Šis produkts atbilst Eiropas Direktīvu 2004/108/EC un 2006/95/EC
noteikumiem.

Regulatory Compliance

Lietuvių Šis produktas atitinka Europos direktyvų 2004/108/EC ir 2006/95/EC
nuostatas.
Malti Dan il-prodott hu konformi mal-provvedimenti tad-Direttivi Ewropej
2004/108/EC u 2006/95/EC.
Norsk Dette produktet er i henhold til bestemmelsene i det europeiske direktivet
2004/108/EC & 2006/95/EC.
Polski Niniejszy produkt jest zgodny z postanowieniami Dyrektyw Unii Europejskiej
2004/108/EC i 2006/95/EC.
Portuguese Este produto cumpre com as normas da Diretiva Européia 2004/108/EC
& 2006/95/EC.
Español Este producto cumple con las normas del Directivo Europeo 2004/108/EC &
2006/95/EC.
Slovensky Tento produkt je v súlade s ustanoveniami európskych direktív
2004/108/EC a 2006/95/EC.
Slovenščina Izdelek je skladen z določbami evropskih direktiv 2004/108/EC in
2006/95/EC.
Svenska Denna produkt har tillverkats i enlighet med EG-direktiv 2004/108/EC &
2006/95/EC.
Türkçe Bu ürün, Avrupa Birliği’nin 2004/108/EC ve 2006/95/EC yönergelerine uyar.

Product Ecology Statements
The following information is provided to address worldwide product ecology concerns
and regulations.

Recycling Considerations
As part of its commitment to environmental responsibility, Intel has implemented the
Intel® Product Recycling Program to allow retail consumers of Intel’s branded products
to return used products to selected locations for proper recycling.
Please consult http://www.intel.com/intel/other/ehs/product_ecology
for the details of this program, including the scope of covered products, available
locations, shipping instructions, terms and conditions, etc.

中文
作为其对环境责任之承诺的部分，英特尔已实施 Intel Product Recycling Program
（英特尔产品回收计划），以允许英特尔品牌产品的零售消费者将使用过的产品退还至指定地点作恰
当的重复使用处理。
请参考http://www.intel.com/intel/other/ehs/product_ecology
了解此计划的详情，包括涉及产品之范围、回收地点、运送指导、条款和条件等。

Intel Desktop Board DG41MJ Product Guide

Deutsch
Als Teil von Intels Engagement für den Umweltschutz hat das Unternehmen das Intel
Produkt-Recyclingprogramm implementiert, das Einzelhandelskunden von Intel
Markenprodukten ermöglicht, gebrauchte Produkte an ausgewählte Standorte für
ordnungsgemäßes Recycling zurückzugeben.
Details zu diesem Programm, einschließlich der darin eingeschlossenen Produkte,
verfügbaren Standorte, Versandanweisungen, Bedingungen usw., finden Sie auf der
http://www.intel.com/intel/other/ehs/product_ecology
Español
Como parte de su compromiso de responsabilidad medioambiental, Intel ha
implantado el programa de reciclaje de productos Intel, que permite que los
consumidores al detalle de los productos Intel devuelvan los productos usados en los
lugares seleccionados para su correspondiente reciclado.
Consulte la http://www.intel.com/intel/other/ehs/product_ecology
para ver los detalles del programa, que incluye los productos que abarca, los lugares
disponibles, instrucciones de envío, términos y condiciones, etc.
Français
Dans le cadre de son engagement pour la protection de l'environnement, Intel a mis
en œuvre le programme Intel Product Recycling Program (Programme de recyclage
des produits Intel) pour permettre aux consommateurs de produits Intel de recycler
les produits usés en les retournant à des adresses spécifiées.
Visitez la page Web http://www.intel.com/intel/other/ehs/product_ecology pour en
savoir plus sur ce programme, à savoir les produits concernés, les adresses
disponibles, les instructions d'expédition, les conditions générales, etc.
日本語
インテルでは、環境保護活動の一環として、使い終えたインテル
ブランド製品を指定の場所へ返送していただき、リサイクルを適切に行えるよう、インテル製品リサイクル
プログラムを発足させました。
対象製品、返送先、返送方法、ご利用規約など、このプログラムの詳細情報は、http://www.intel.com/in
tel/other/ehs/product_ecology （英語）をご覧ください。
Malay
Sebagai sebahagian daripada komitmennya terhadap tanggungjawab persekitaran,
Intel telah melaksanakan Program Kitar Semula Produk untuk membenarkan
pengguna-pengguna runcit produk jenama Intel memulangkan produk terguna ke
lokasi-lokasi terpilih untuk dikitarkan semula dengan betul.
Sila rujuk http://www.intel.com/intel/other/ehs/product_ecology untuk mendapatkan
butir-butir program ini, termasuklah skop produk yang dirangkumi, lokasi-lokasi
tersedia, arahan penghantaran, terma & syarat, dsb.

Regulatory Compliance

Portuguese
Como parte deste compromisso com o respeito ao ambiente, a Intel implementou o
Programa de Reciclagem de Produtos para que os consumidores finais possam enviar
produtos Intel usados para locais selecionados, onde esses produtos são reciclados de
maneira adequada.
Consulte o site http://www.intel.com/intel/other/ehs/product_ecology (em Inglês) para
obter os detalhes sobre este programa, inclusive o escopo dos produtos cobertos, os
locais disponíveis, as instruções de envio, os termos e condições, etc.
Russian
В качестве части своих обязательств к окружающей среде, в Intel создана
программа утилизации продукции Intel (Product Recycling Program) для
предоставления конечным пользователям марок продукции Intel возможности
возврата используемой продукции в специализированные пункты для должной
утилизации.
Пожалуйста, обратитесь на веб-сайт
http://www.intel.com/intel/other/ehs/product_ecology за информацией об этой
программе, принимаемых продуктах, местах приема, инструкциях об отправке,
положениях и условиях и т.д.
Türkçe
Intel, çevre sorumluluğuna bağımlılığının bir parçası olarak, perakende tüketicilerin
Intel markalı kullanılmış ürünlerini belirlenmiş merkezlere iade edip uygun şekilde geri
dönüştürmesini amaçlayan Intel Ürünleri Geri Dönüşüm Programı’nı uygulamaya
koymuştur.
Bu programın ürün kapsamı, ürün iade merkezleri, nakliye talimatları, kayıtlar ve
şartlar v.s dahil bütün ayrıntılarını ögrenmek için lütfen
http://www.intel.com/intel/other/ehs/product_ecology web sayfasına gidin.

Lead-Free Desktop Board
This Desktop Board is a European Union Restriction of Hazardous Substances (EU
RoHS Directive 2002/95/EC) compliant product. EU RoHS restricts the use of six
materials. One of the six restricted materials is lead.
Intel Desktop Board DG41MJ is lead-free although certain discrete components used
on the board contain a small amount of lead which is necessary for component
performance and/or reliability. This Desktop Board is referred to as “Lead-free second
level interconnect.” The board substrate and the solder connections from the board to
the components (second-level connections) are all lead-free.
China bans the same substances and has the same limits as EU RoHS; however it
requires different product marking and controlled substance information. The required
mark shows the Environmental Friendly Usage Period (EFUP). The EFUP is defined as
the number of years for which controlled listed substances will not leak or chemically
deteriorate while in the product.

Intel Desktop Board DG41MJ Product Guide

Table 16 shows the lead-free board markings as they appear on the board and
accompanying collateral.
Table 16. Lead-Free Board Markings
Description

Mark
nd

Lead-Free 2 Level
Interconnect: This symbol
is used to identify electrical
and electronic assemblies and
components in which the lead
(Pb) concentration level in the
Intel Desktop Board substrate
and the solder connections
from the board to the
components (second-level
interconnect) is not greater
than 0.1% by weight (1000
ppm).

China
RoHS/Environmentally
Friendly Use Period Logo:
This is an example of the
symbol used on Intel Desktop
Boards and associated
collateral. The color of the
mark may vary depending
upon the application. The
Environmental Friendly Usage
Period (EFUP) for Intel
Desktop Boards has been
determined to be 10 years.

Regulatory Compliance

EMC Regulations
Intel Desktop Board DG41MJ complies with the EMC regulations stated in Table 17
when correctly installed in a compatible host system.
Table 17. EMC Regulations
Regulation

Title

FCC 47 CFR Part 15,
Subpart B

Title 47 of the Code of Federal Regulations, Part 15, Subpart B,
Radio Frequency Devices. (USA)

ICES-003 Issue 4
(Class B)

Interference-Causing Equipment Standard, Digital Apparatus.
(Canada)

EN55022:2006
(Class B)

Limits and methods of measurement of Radio Interference
Characteristics of Information Technology Equipment. (European
Union)

EN55024:1998

Information Technology Equipment – Immunity Characteristics
Limits and methods of measurement. (European Union)

EN55022:2006
(Class B)

Australian Communications Authority, Standard for
Electromagnetic Compatibility. (Australia and New Zealand)

CISPR 22:2005
+A1:2005 +A2:2006
(Class B)

Limits and methods of measurement of Radio Disturbance
Characteristics of Information Technology Equipment.
(International)

CISPR 24:1997
+A1:2001 +A2:2002

Information Technology Equipment – Immunity Characteristics –
Limits and Methods of Measurement. (International)

VCCI V-3/2007.04,
V-4/2007.04, Class B

Voluntary Control for Interference by Information Technology
Equipment (Japan)

Japanese Kanji statement translation: This is a Class B product based on the standard
of the Voluntary Control Council for Interference from Information Technology
Equipment (VCCI). If this is used near a radio or television receiver in a domestic
environment, it may cause radio interference. Install and use the equipment
according to the instruction manual.

Intel Desktop Board DG41MJ Product Guide

Korean Class B statement translation: This is household equipment that is certified to
comply with EMC requirements. You may use this equipment in residential
environments and other non-residential environments.

Ensure Electromagnetic Compatibility (EMC)
Compliance
Before computer integration, make sure that the power supply and other modules or
peripherals, as applicable, have passed Class B EMC testing and are marked
accordingly.
Pay close attention to the following when reading the installation instructions for the
host chassis, power supply, and other modules:
•
•
•
•

Product certifications or lack of certifications
External I/O cable shielding and filtering
Mounting, grounding, and bonding requirements
Keying connectors when mating the wrong connectors could be hazardous

If the power supply and other modules or peripherals, as applicable, are not Class B
EMC compliant before integration, then EMC testing may be required on a
representative sample of the newly completed computer.

Regulatory Compliance

Product Certifications
Board-Level Certification Markings
Intel Desktop Board DG41MJ has the product certification markings shown in Table 18.
Table 18. Product Certification Markings
Description

Mark

UL joint US/Canada Recognized Component mark. Includes adjacent
UL file number for Intel Desktop Boards: E210882.
FCC Declaration of Conformity logo mark for Class B equipment.
Includes Intel name and DG41MJ model designation.

CE mark. Declaring compliance to European Union (EU) EMC
directive and Low Voltage directive.

Australian Communications Authority (ACA) C-tick mark. Includes
adjacent Intel supplier code number, N-232.
Japan VCCI (Voluntary Control Council for Interference) mark.

KCC (Korean Communications Commission) EMC certification mark.
Includes adjacent KCC certification number: CPU-DG41MJ (B).
Taiwan BSMI (Bureau of Standards, Metrology, and Inspections)
mark. Includes adjacent Intel company number, D33025.
Printed wiring board manufacturer’s recognition mark. Consists of a
unique UL recognized manufacturer’s logo, along with a flammability
rating (solder side).

V-0

Intel Desktop Board DG41MJ Product Guide

Chassis and Component Certifications
Ensure that the chassis and certain components; such as the power supply, peripheral
drives, wiring, and cables; are components certified for the country or market where
used. Agency certification marks on the product are proof of certification. Typical
product certifications include:
In Europe
The CE marking signifies compliance with all applicable European requirements. If the
chassis and other components are not properly CE marked, a supplier’s Declaration of
Conformity statement to the European EMC directive and Low Voltage directive (as
applicable), should be obtained. Additionally, other directives, such as the Radio and
Telecommunications Terminal Equipment (R&TTE) directive may also apply depending
on product features.
In the United States
A certification mark by a Nationally Recognized Testing Laboratory (NRTL) such as UL,
CSA, or ETL signifies compliance with safety requirements. Wiring and cables must
also be UL listed or recognized and suitable for the intended use. The FCC Class B
logo for home or office use signifies compliance with electromagnetic interference
(EMI) requirements.
In Canada
A nationally recognized certification mark such as CSA or cUL signifies compliance with
safety requirements. The Industry Canada statement at the front of this product guide
demonstrates compliance with Canadian EMC regulations.

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