Intel® Desktop Board
DG41AN
Technical Product Specification
Order Number: E96323-001US
The Intel® Desktop Board DG41AN may contain design defects or errors known as errata that may cause the product to deviate from published
specifications. Current characterized errata are documented in the Intel Desktop Board DG41AN Specification Update.
June 2010
Revision History
Revision Revision History Date
-001 First release of the Intel® Desktop Board DG41AN Technical Product
Specification
This product specification applies to only the standard Intel® Desktop Board DG41AN with BIOS
identifier ANG4110H.86A.
Changes to this specification will be published in the Intel Desktop Board DG41AN Specification
Update before being incorporated into a revision of this document.
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®
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June 2010
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deviate from published specifications. Current characterized errata are available on request.
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Preface
This Technical Product Specification (TPS) specifies the board layout, components,
connectors, power and environmental requirements, and the BIOS for the
®
Intel
Desktop Board DG41AN.
Intended Audience
The TPS is intended to provide detailed, technical information about the Intel Desktop
Board DG41AN and its components to the vendors, system integrators, and other
engineers and technicians who need this level of information. It is specifically not
intended for general audiences.
What This Document Contains
Chapter Description
1 A description of the hardware used on the Intel Desktop Board DG41AN
2 A map of the resources of the Intel Desktop Board
3 The features supported by the BIOS Setup program
4 A description of the BIOS error messages, beep codes, and POST codes
5 Regulatory compliance and battery disposal information
Typographical Conventions
This section contains information about the conventions used in this specification. Not
all of these symbols and abbreviations appear in all specifications of this type.
Notes, Cautions, and Warnings
NOTE
Notes call attention to important information.
CAUTION
Cautions are included to help you avoid damaging hardware or losing data.
iii
Intel Desktop Board DG41AN Technical Product Specification
Other Common Notation
# Used after a signal name to identify an active-low signal (such as USBP0#)
GB Gigabyte (1,073,741,824 bytes)
GB/s Gigabytes per second
Gb/s Gigabits per second
KB Kilobyte (1024 bytes)
Kbit Kilobit (1024 bits)
kbits/s 1000 bits per second
MB Megabyte (1,048,576 bytes)
MB/s Megabytes per second
Mbit Megabit (1,048,576 bits)
Mbits/s Megabits per second
xxh An address or data value ending with a lowercase h indicates a hexadecimal value.
x.x V Volts. Voltages are DC unless otherwise specified.
* This symbol is used to indicate third-party brands and names that are the property of their
respective owners.
iv
Contents
1 Product Description
1.1 Overview.......................................................................................... 9
1.1.1 Feature Summary .................................................................. 9
1.1.2 Board Layout ....................................................................... 11
1.1.3 Block Diagram ..................................................................... 13
1.2 Legacy Considerations...................................................................... 14
1.3 Online Support................................................................................ 14
1.4 Processor ....................................................................................... 14
1.5 System Memory .............................................................................. 15
1.5.1 Memory Configurations ......................................................... 17
1.6 Intel® G41 Express Chipset............................................................... 19
1.6.1 Intel G41 Graphics Subsystem ............................................... 19
1.6.2 USB ................................................................................... 21
1.6.3 Serial ATA Interfaces ............................................................ 21
1.7 Real-Time Clock Subsystem .............................................................. 22
1.8 Legacy I/O Controller ....................................................................... 22
1.8.1 Serial Port Interface.............................................................. 22
1.8.2 PS/2 Keyboard/Mouse Interface ............................................. 23
1.9 Audio Subsystem............................................................................. 23
1.9.1 Audio Subsystem Software .................................................... 24
1.9.2 Audio Connectors and Headers ............................................... 24
1.10 LAN Subsystem............................................................................... 25
1.10.1 LAN Subsystem Software....................................................... 25
1.10.2 RJ-45 LAN Connector with Integrated LEDs .............................. 26
1.11 Hardware Management Subsystem .................................................... 27
1.11.1 Hardware Monitoring and Fan Control...................................... 27
1.11.2 Fan Monitoring..................................................................... 27
1.11.3 Chassis Intrusion and Detection.............................................. 27
1.11.4 Thermal Monitoring .............................................................. 28
1.12 Power Management ......................................................................... 29
1.12.1 ACPI................................................................................... 29
1.12.2 Hardware Support ................................................................ 32
2 Technical Reference
2.1 Memory Map................................................................................... 37
2.1.1 Addressable Memory............................................................. 37
2.2 Connectors and Headers................................................................... 40
2.2.1 Back Panel Connectors .......................................................... 41
2.2.2 Component-side Connectors and Headers ................................ 42
2.3 Jumper Block .................................................................................. 50
2.4 Mechanical Considerations ................................................................ 52
2.4.1 Form Factor......................................................................... 52
2.5 Electrical Considerations ................................................................... 53
v
2.5.1 Power Supply Considerations ................................................. 53
2.5.2 Fan Header Current Capability................................................ 54
2.5.3 Add-in Board Considerations .................................................. 54
2.6 Thermal Considerations .................................................................... 54
2.7 Reliability ....................................................................................... 56
2.8 Environmental ................................................................................ 57
3 Overview of BIOS Features
3.1 Introduction ................................................................................... 59
3.2 BIOS Flash Memory Organization ....................................................... 60
3.3 Resource Configuration .................................................................... 60
3.3.1 PCI Autoconfiguration ........................................................... 60
3.4 System Management BIOS (SMBIOS)................................................. 61
3.5 Legacy USB Support ........................................................................ 61
3.6 BIOS Updates ................................................................................. 62
3.6.1 Language Support ................................................................ 62
3.6.2 Custom Splash Screen .......................................................... 63
3.7 BIOS Recovery................................................................................ 63
3.8 Boot Options................................................................................... 64
3.8.1 Optical Drive Boot ................................................................ 64
3.8.2 Network Boot....................................................................... 64
3.8.3 Booting Without Attached Devices........................................... 64
3.8.4 Changing the Default Boot Device During POST ........................ 64
3.9 Adjusting Boot Speed....................................................................... 65
3.9.1 Peripheral Selection and Configuration..................................... 65
3.9.2 BIOS Boot Optimizations ....................................................... 65
3.10 BIOS Security Features .................................................................... 66
4 Error Messages and Beep Codes
4.1 Speaker ......................................................................................... 67
4.2 BIOS Beep Codes ............................................................................ 67
4.3 Front-panel Power LED Blink Codes .................................................... 68
4.4 BIOS Error Messages ....................................................................... 68
4.5 Port 80h POST Codes ....................................................................... 69
5 Regulatory Compliance and Battery Disposal Information
5.1 Regulatory Compliance..................................................................... 75
5.1.1 Safety Standards.................................................................. 75
5.1.2 European Union Declaration of Conformity Statement................ 76
5.1.3 Product Ecology Statements................................................... 77
5.1.4 EMC Regulations .................................................................. 79
5.1.5 ENERGY STAR* 5.0, e-Standby, and ErP Compliance ................. 82
5.1.6 Regulatory Compliance Marks (Board Level) ............................. 83
5.2 Battery Disposal Information............................................................. 84
vi
Contents
Figures
1. Major Board Components.................................................................. 11
2. Block Diagram ................................................................................ 13
3. Memory Channel Configuration and DIMM Configuration........................ 18
4. Back Panel Audio Connectors ............................................................ 24
5. LAN Connector LED Locations............................................................ 26
6. Thermal Sensors and Fan Headers ..................................................... 28
7. Location of the Standby Power Indicator LED....................................... 35
8. Detailed System Memory Address Map ............................................... 38
9. Back Panel Connectors ..................................................................... 41
10. Component-side Connectors and Headers ........................................... 42
11. Connection Diagram for Front Panel Header ........................................ 47
12. Connection Diagram for Front Panel USB Headers ................................ 49
13. Location of the Jumper Block............................................................. 50
14. Board Dimensions ........................................................................... 52
15. Localized High Temperature Zones..................................................... 55
Tables
1. Feature Summary.............................................................................. 9
2. Board Components Shown in Figure 1 ................................................ 12
3. Supported Memory Configurations ..................................................... 16
4. Audio Jack Support.......................................................................... 23
5. LAN Connector LED States................................................................ 26
6. Effects of Pressing the Power Switch .................................................. 29
7. Power States and Targeted System Power........................................... 30
8. Wake-up Devices and Events ............................................................ 31
9. System Memory Map ....................................................................... 39
10. Component-side Connectors and Headers Shown in Figure 10................ 43
11. Serial ATA Connectors...................................................................... 44
12. Chassis Intrusion Header.................................................................. 44
13. Serial Port Header ........................................................................... 44
14. Front Chassis Fan Header ................................................................. 44
15. Processor Fan Header ...................................................................... 44
16. Front Panel Audio Header for Intel® HD Audio...................................... 45
17. Front Panel Audio Header for AC ’97 Audio .......................................... 45
18. Auxiliary Front Panel Power/Sleep LED Header..................................... 45
19. Processor Core Power Connector........................................................ 46
20. Main Power Connector...................................................................... 46
21. Front Panel Header .......................................................................... 47
22. States for a One-Color Power LED...................................................... 48
23. States for a Two-Color Power LED...................................................... 48
24. Auxiliary Front Panel Power LED Header.............................................. 48
25. BIOS Setup Configuration Jumper Settings.......................................... 51
26. Recommended Power Supply Current Values ....................................... 53
27. Fan Header Current Capability........................................................... 54
28. Thermal Considerations for Components ............................................. 56
vii
29. Intel Desktop Board DG41AN Environmental Specifications.................... 57
30. BIOS Setup Program Menu Bar.......................................................... 60
31. BIOS Setup Program Function Keys.................................................... 60
32. Acceptable Drives/Media Types for BIOS Recovery ............................... 63
33. Boot Device Menu Options ................................................................ 64
34. Supervisor and User Password Functions............................................. 66
35. BIOS Beep Codes ............................................................................ 67
36. Front-panel Power LED Blink Codes.................................................... 68
37. BIOS Error Messages ....................................................................... 68
38. Port 80h POST Code Ranges.............................................................. 69
39. Port 80h POST Codes ....................................................................... 70
40. Typical Port 80h POST Sequence........................................................ 73
41. Safety Standards............................................................................. 75
42. EMC Regulations ............................................................................. 79
43. Regulatory Compliance Marks............................................................ 83
viii
1 Product Description
1.1 Overview
1.1.1 Feature Summary
Table 1 summarizes the major features of Intel® Desktop Board DG41AN.
Table 1. Feature Summary
Form Factor Mini-ITX (6.7 inches by 6.7 inches [170.18 millimeters by 170.18 millimeters])
Processor Support for the following 65 W TDP processors:
Memory
Chipset
Video Intel® Graphics Media Accelerator X4500 (Intel
Audio 5.1+2-channel audio subsystem using the Realtek* ALC888VC audio codec
Legacy I/O
Control
Peripheral
Interfaces
LAN Support 10/100/1000 Mbits/sec LAN subsystem using a Realtek RTL8111E Gigabit Ethernet
BIOS
®
• Intel
• Intel
• Intel
• Intel
• Intel
• Intel
• Two 240-pin DDR3 SDRAM Dual Inline Memory Module (DIMM) sockets
• Support for DDR3 800 MHz, 1066 MHz, and 1333 (Overclocked (OC)) MHz
• Support for up to 4 GB of system memory
Intel
• Intel
• Intel
subsystem
Winbond W83627DHG-P based Legacy I/O controller for hardware management,
serial, parallel, and PS/2* ports
• Eight USB 2.0 ports: four back panel connectors and two front panel headers for
• Three Serial ATA (SATA) interfaces
• One PS/2 keyboard/mouse port on back panel
• One serial port header (may require specialized chassis or cable for use)
• Parallel port on back panel
Controller
• Intel BIOS (resident in the SPI Flash device)
• Support for Advanced Configuration and Power Interface (ACPI), Plug and Play,
Celeron® processor E1000/E3000 series in an LGA775 socket
®
Celeron® processor 400 Sequence in an LGA775 socket
®
Pentium® processor E2000/E5000/E6000 series in an LGA775 socket
®
Core™2 Duo processor E4000/E5000/E6000/E8000 series in an LGA775
socket
®
Core™2 Quad Q8000s/Q9000s series in an LGA775 socket
®
Xeon® processor 3000/E3000 series in an LGA775 socket
DIMMs
Note: DDR3 1333 MHz memory runs at 1066 MHz by default until manually
overclocked through the system BIOS.
®
G41 Express Chipset, consisting of:
®
82G41 Graphics and Memory Controller Hub (GMCH)
®
82801GB I/O Controller Hub (ICH7)
®
GMA X4500) onboard graphics
support of four ports
and SMBIOS
continued
9
Intel Desktop Board DG41AN Technical Product Specification
Table 1. Feature Summary (continued)
Instantly Available
PC Technology
Expansion
Capabilities
Hardware Monitor
Subsystem
• Support for PCI* Local Bus Specification Revision 2.3
• Suspend to RAM support
• Wake on PCI, LAN, serial port, front panel, PS/2 device, and USB ports
• One Conventional PCI bus connector
• Voltage sense to detect out of range power supply voltages
• Thermal sense to detect out of range thermal values
• Two fan headers
• Two fan sense inputs used to monitor fan activity
10
1.1.2 Board Layout
Figure 1 shows the location of the major components.
Product Description
Figure 1. Major Board Components
Table 2 lists the components identified in Figure 1.
11
Intel Desktop Board DG41AN Technical Product Specification
Table 2. Board Components Shown in Figure 1
Item/callout
from Figure 1 Descri
A Back panel connectors
B Processor core power connector (2 x 2)
C Front panel USB header
D Front panel USB header
E Alternate front panel power LED header
F BIOS Setup configuration jumper block
G LGA775 processor socket
H Front chassis fan header
I Processor fan header
J Front panel header
K Main Power connector (2 x 12)
L Standby power LED
M Battery
N Piezoelectric speaker
O DIMM Channel A socket
P DIMM Channel B socket
Q Intel 82G41 GMCH
R Intel 82801GB I/O Controller Hub (ICH7)
S Serial ATA connectors (3)
T Conventional PCI bus add-in connector
U Front panel audio header
V Chassis intrusion header
W Serial port header
ption
12
1.1.3 Block Diagram
Figure 2 is a block diagram of the major functional areas.
Product Description
Figure 2. Block Diagram
13
Intel Desktop Board DG41AN Technical Product Specification
1.2 Legacy Considerations
This board differs from other Intel® Desktop Board products, with specific changes
including (but not limited to) the following:
• No serial port on the back panel
• No diskette drive connector
1.3 Online Support
To find information about… Visit this World Wide Web site:
Intel Desktop Board D425KT and
Intel Desktop Board D425KTW
Desktop Board Support http://www.intel.com/p/en_US/support?iid=hdr+support
Available configurations for the Intel
Desktop Board D425KT and Intel
Desktop Board D425KTW
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
Tested memory http://www.intel.com/support/motherboards/desktop/sb/CS-
Integration information http://www.intel.com/support/go/buildit
http://www.intel.com/products/motherboard/index.htm
http://ark.intel.com
025414.htm
1.4 Processor
The board is designed to support the following processors:
®
• Intel
• Intel
• Intel
• Intel
• Intel
• Intel
Other processors may be supported in the future. This board is designed to support
processors with a maximum wattage of 65 W. The processors listed above are only
supported when falling within the wattage requirements of the board. See the Intel
web site listed below for the most up-to-date list of supported processors.
For information about… Refer to:
Supported processors http://processormatch.intel.com
CAUTION
Use only the processors listed on the web site above. Use of unsupported processors
can damage the board, the processor, and the power supply.
®
®
®
socket
®
®
Celeron® processor E1000/E3000 series in an LGA775 socket
Celeron® processor 400 Sequence in an LGA775 socket
Pentium® processor E2000/E5000/E6000 series in an LGA775 socket
Core™2 Duo processor E4000/E5000/E6000/E8000 series in an LGA775
Core™2 Quad Q8000s/Q9000s series in an LGA 775 socket
Xeon® processor 3000/E3000 series in an LGA775 socket
14
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