-001 First release of the Intel® Desktop Board DG41MJ Product Guide 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
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.
®
Desktop Board DG41MJ may contain design defects or errors known as errata which may cause the
Intel
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.
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
2 Installing and Replacing Desktop Board Components: instructions on how to install
the Desktop Board and other hardware components
3 Updating the BIOS: instructions on how to update the BIOS
A Error Messages and Indicators: information about BIOS error messages and beep
codes
B 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.
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
Processor Support for an Intel® processor in the LGA775 package
Main Memory
Chipset Intel® G41 Express Chipset consisting of:
Graphics
Audio
LAN Support
Expansion
Capabilities
Peripheral
Interfaces
Mini-ITX (170.18 millimeters [6.70 inches] x 170.18 millimeters
[6.70 inches])
• 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
• Intel G41 Express Chipset Graphics and Memory Controller Hub
(GMCH) with Intel® Graphics Media Accelerator X4500 (Intel® GMA
X4500)
• Intel
• Intel G41 Express Chipset Graphics and Memory Controller Hub
• Integrated graphics (Intel
• One PCI* bus connector supporting PCI graphics cards
• 5.1 channel in single-stream mode or 4 + 2 channel in multi-
• One PCI bus connector
• Up to eight USB 2.0 ports:
• Three Serial ATA (SATA) channels (3.0 Gb/s) via ICH7
• One serial port header
• PS/2* keyboard port on the back panel
®
82801GB I/O Controller Hub (ICH7)
(GMCH)
®
GMA X4500) with VGA and DVI-D
outputs
streaming mode, featuring:
― Realtek* ALC888VC audio codec
― Support for Intel
AC ’97 Audio
Realtek 8111D Gigabit Ethernet Controller for operation at
10/100/1000 Mb/s
― Four ports routed to the back panel
― Four ports routed to two USB headers
®
High Definition Audio (Intel® HD Audio) and
continued
9
Intel Desktop Board DG41MJ Product Guide
Table 1. Feature Summary (continued)
BIOS
Power Management
Hardware Monitor
Supported
Operating Systems
• Intel
• 8 Mb symmetrical flash memory device
• Support for SMBIOS
• Intel
• Intel
• Support for Advanced Configuration and Power Interface (ACPI)
• Suspend to RAM (STR)
• Wake on USB, LAN, PS/2, and front panel
• ENERGY STAR* capable
• 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
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
®
Platform Innovation Framework for extensible firmware
interface
®
Rapid BIOS Boot
®
Express BIOS Update
For more information on Intel Desktop Board DG41MJ consult th e following online
resources:
To find information
about…
Intel Desktop Board
DG41MJ
Desktop Board Support http://support.intel.com/support/motherboards/desktop/DG41MJ
Available configurations
for Intel Desktop Board
DG41MJ
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