Intel BLKDP55WB, DP55WB Product Manual
Intel® Desktop Board DP55WB
Product Guide
Order Number: E65064-004
Revision History
Revision Revision History Date
-001 First release of the Intel® Desktop Board DP55WB Product Guide July 2009
-002 Second release of the Intel® Desktop Board DP55WB Product Guide December 2009
-003 Third release of the Intel® Desktop Board DP55WB Product Guide May 2010
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
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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 DP55WB may contain design defects or errors known as errata which may cause the
product to deviate from published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing
your product order.
Copies of documents which have an ordering number and are referenced in this document, or other Intel
literature, may be obtained from Intel Corporation by going to the World Wide Web site at:
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* Other names and brands may be claimed as the property of others.
Copyright © 2009, 2010 Intel Corporation. All rights reserved.
OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS
Preface
This Product Guide gives information about board layout, component installation, BIOS
update, and regulatory requirements for Intel
®
Desktop Board DP55WB.
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
4 Configuring for RAID Using Intel
configuring your system for RAID
A Error Messages and Indicators: information about BIOS error messages and beep
codes
B Regulatory Compliance: describes the board’s adherence to safety standards and
EMC regulations and its product certifications
®
Matrix Storage Technology: information about
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.
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Intel Desktop Board DP55WB Product Guide
Terminology
The table below gives descriptions of some common terms used in the product guide.
Term Description
GB Gigabyte (1,073,741,824 bytes)
GHz Gigahertz (one billion hertz)
KB Kilobyte (1024 bytes)
MB Megabyte (1,048,576 bytes)
Mb Megabit (1,048,576 bits)
MHz Megahertz (one million hertz)
iv
Contents
1 Desktop Board Features
Supported Operating Systems..............................................................................10
Desktop Board Components.................................................................................11
Processor..........................................................................................................13
Main Memory.....................................................................................................14
®
Intel
P55 Express Chipset..................................................................................15
Audio Subsystem ...............................................................................................15
LAN Subsystem .................................................................................................15
USB 2.0 Support................................................................................................16
Serial ATA Support.............................................................................................17
Expandability.....................................................................................................17
BIOS................................................................................................................17
Serial ATA Auto Configuration.......................................................................17
PCI Express* Auto Configuration...................................................................17
Security Passwords.....................................................................................18
Hardware Management .......................................................................................18
Hardware Monitoring and Fan Speed Control ..................................................18
Chassis Intrusion........................................................................................19
Power Management............................................................................................19
Software Support .......................................................................................19
Hardware Support ......................................................................................19
ENERGY STAR*, e-Standby, and EuP Compliance ............................................22
Speaker............................................................................................................23
Battery.............................................................................................................23
Real-Time Clock.................................................................................................23
®
Intel
Precision Cooling Technology .......................................................18
ACPI..................................................................................................19
Power Connectors ...............................................................................19
Fan Headers .......................................................................................20
LAN Wake Capabilities..........................................................................20
Instantly Available PC Technology..........................................................20
+5 V Standby Power Indicator...............................................................21
Wake from USB ..................................................................................22
PME# Signal Wake-up Support..............................................................22
WAKE# Signal Wake-up Support ...........................................................22
2 Installing and Replacing Desktop Board Components
Before You Begin ...............................................................................................25
Installation Precautions.......................................................................................26
Prevent Power Supply Overload ....................................................................26
Observe Safety and Regulatory Requirements.................................................26
Installing the I/O Shield ......................................................................................27
Installing and Removing the Desktop Board ...........................................................28
Installing and Removing a Processor.....................................................................29
Installing a Processor ..................................................................................29
Installing a Processor Fan Heat Sink..............................................................34
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Intel Desktop Board DP55WB Product Guide
Connecting the Processor Fan Heat Sink Cable................................................34
Removing the Processor ..............................................................................34
Installing and Removing System Memory ..............................................................35
Guidelines for Dual Channel Memory Configuration..........................................35
Two or Four DIMMs .............................................................................35
Three DIMMs ......................................................................................36
Installing DIMMs ........................................................................................37
Removing DIMMs........................................................................................39
Installing and Removing PCI Express x16 Graphics Cards.........................................39
Installing a PCI Express x16 Graphics Card ....................................................39
Removing a PCI Express x16 Graphics Card....................................................40
Connecting Serial ATA (SATA) Cables....................................................................42
Connecting to the Internal Headers ......................................................................43
S/PDIF Header ...........................................................................................44
Front Panel Audio Header ............................................................................44
Chassis Intrusion Header.............................................................................45
Front Panel Header .....................................................................................45
Alternate Front Panel Power LED Header........................................................46
USB 2.0 Headers ........................................................................................46
IEEE 1394a Header.....................................................................................47
Connecting to the Audio System...........................................................................47
Connecting Chassis Fan and Power Supply Cables...................................................48
Connecting Chassis Fan Cables.....................................................................48
Connecting Power Supply Cables ..................................................................49
Setting the BIOS Configuration Jumper .................................................................50
Clearing Passwords ............................................................................................51
Replacing the Battery .........................................................................................52
3 Updating the BIOS
Updating the BIOS with the Intel
Updating the BIOS with the ISO Image BIOS Update File or the Iflash Memory
Update Utility...............................................................................................60
Obtaining the BIOS Update File ....................................................................60
Updating the BIOS with the ISO Image BIOS Update File .................................61
Updating the BIOS with the Iflash Memory Update Utility .................................62
Recovering the BIOS...................................................................................62
4 Configuring for RAID Using Intel
Configuring the BIOS..........................................................................................63
Creating Your RAID Set.......................................................................................63
Loading the Intel Matrix Storage Technology RAID Drivers and Software
(Required for Microsoft Windows XP Installation)...............................................64
Setting Up a “RAID Ready” System.......................................................................64
®
Express BIOS Update Utility.................................59
®
Matrix Storage Technology
A Error Messages and Indicators
BIOS Error Codes...............................................................................................65
BIOS Error Messages..........................................................................................66
vi
Contents
B Regulatory Compliance
Safety Standards ...............................................................................................67
Place Battery Marking .................................................................................67
European Union Declaration of Conformity Statement..............................................68
Product Ecology Statements ................................................................................69
Recycling Considerations .............................................................................69
Lead-free 2LI/Pb-free 2LI Board ...................................................................72
Restriction of Hazardous Substances (RoHS) ..................................................73
EU RoHS ............................................................................................73
China RoHS ........................................................................................74
EMC Regulations ................................................................................................76
Ensure Electromagnetic Compatibility (EMC) Compliance..................................77
Product Certifications..........................................................................................78
Board-Level Certification Markings ................................................................78
Chassis and Component Certifications............................................................79
Figures
1. Intel Desktop Board DP55WB Components.......................................................11
2. LAN Connector LEDs .....................................................................................16
3. Location of the Standby Power Indicator ..........................................................21
4. Installing the I/O Shield ................................................................................27
5. Intel Desktop Board DP55WB Mounting Screw Hole Locations .............................28
6. Unlatch the Socket Lever...............................................................................29
7. Lift the Load Plate.........................................................................................30
8. Remove the Socket Cover..............................................................................31
9. Remove the Processor from the Protective Cover ..............................................32
10. Install the Processor .....................................................................................32
11. Lower the Load Plate.....................................................................................33
12. Secure the Load Plate in Place........................................................................33
13. Connecting the Processor Fan Heat Sink Power Cable to the Processor
Fan Header..................................................................................................34
14. Example Dual Channel Memory Configuration with Two DIMMs ...........................35
15. Example Dual Channel Memory Configuration with Four DIMMs...........................36
16. Example Dual Channel Memory Configuration with Three DIMMs .........................36
17. Use DDR3 DIMMs .........................................................................................37
18. Installing a DIMM .........................................................................................38
19. Installing a PCI Express x16 Graphics Card ......................................................40
20. Removing a PCI Express x16 Graphics Card......................................................41
21. Connecting a Serial ATA Cable........................................................................42
22. Internal Headers ..........................................................................................43
23. Back Panel Audio Connectors .........................................................................47
24. Location of the Chassis Fan Headers................................................................48
25. Connecting Power Supply Cables ....................................................................49
26. Location of the BIOS Configuration Jumper Block ..............................................50
27. Removing the Battery ...................................................................................57
28. Intel Desktop Board DP55WB China RoHS Material Self Declaration Table.............75
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Intel Desktop Board DP55WB Product Guide
Tables
1. Feature Summary.......................................................................................... 9
2. Intel Desktop Board DP55WB Components .......................................................12
3. LAN Connector LEDs .....................................................................................16
4. S/PDIF Header Signal Names .........................................................................44
5. Front Panel Audio Signal Names for Intel HD Audio............................................44
6. Front Panel Audio Header Signal Names for AC ’97 Audio ...................................44
7. Chassis Intrusion Header Signal Names ...........................................................45
8. Front Panel Header Signal Names ...................................................................45
9. Alternate Front Panel Power LED Header Signal Names ......................................46
10. Front Panel USB Header with Intel Z-U130 USB Solid-state Drive or Compatible
Device Support ............................................................................................46
11. USB 2.0 Header Signal Names........................................................................46
12. IEEE 1394a Header Signal Names ...................................................................47
13. Jumper Settings for the BIOS Setup Program Modes..........................................51
14. BIOS Beep Codes .........................................................................................65
15. Front-panel Power LED Blink Codes.................................................................65
16. BIOS Error Messages ....................................................................................66
17. Safety Standards..........................................................................................67
18. Lead-Free Second Level Interconnect Marks .....................................................73
19. China RoHS Environmentally Friendly Use Period Mark.......................................74
20. EMC Regulations...........................................................................................76
21. Product Certification Markings ........................................................................78
viii
1 Desktop Board Features
This chapter briefly describes the features of Intel® Desktop Board DP55WB. Table 1
summarizes the major features of the Desktop Board.
Table 1. Feature Summary
Form Factor
Processor Support for an Intel® processor in the LGA1156 package
Main Memory
Chipset Intel® P55 Express Chipset consisting of the Intel® P55 Express
Graphics Support for PCI Express* x16 graphics cards
Audio
Expansion
Capabilities
Peripheral
Interfaces
RAID
MicroATX (243.84 millimeters [9.60 inches] x 243.84 millimeters
[9.60 inches])
• Four 240-pin DDR3 SDRAM Dual Inline Memory Module (DIMM)
sockets arranged in two channels
• Support for DDR3 1333 MHz and DDR3 1066 MHz DIMMs
• Support for non-ECC memory
• Support for up to 16 GB of system memory
Platform Controller Hub (Intel
• Independent multi-streaming 6-channel (5.1) audio and 2-channel
audio subsystem, featuring:
― Intel
― Realtek* ALC888-VC2-GR codec
• Support for Intel HD Audio and AC ’97 front panel audio
• Onboard 4-pin S/PDIF out connector
• One PCI Express 2.0 x16 interface
• Two PCI Express 2.0 x1 interfaces
• One PCI* interface
• Up to 14 USB 2.0 ports:
― Eight ports routed to eight back panel USB connectors
― Six ports routed to three onboard USB headers; one header
• Up to two IEEE 1394a ports:
― One port routed to a back panel IEEE 1394a connector
― One port routed to an IEEE 1394a header
• Six Serial ATA (SATA) channels (3.0 Gb/s) via the PCH
Intel
®
High Definition (Intel® HD) Audio interface
supports an Intel
device
®
Matrix Storage Technology for Serial ATA
®
PCH)
®
Z-U130 USB Solid-state Drive or compatible
continued
9
Intel Desktop Board DP55WB Product Guide
Table 1. Feature Summary (continued)
LAN Support Intel® 82578DC Gigabit (10/100/1000 Mb/s) Ethernet LAN controller
including an RJ-45 back panel connector with integrated status LEDs
BIOS
Power Management
Hardware
Management
• Intel
• 16 Mb symmetrical flash memory device
• Support for SMBIOS
• Intel
• Support for Advanced Configuration and Power Interface (ACPI)
• Suspend to RAM (STR)
• Wake on USB, PCI, PCI Express, LAN, and front panel
• ENERGY STAR* capable
Hardware monitor with:
• Three fan sensing inputs used to monitor fan activity
• Intel® Precision Cooling Technology fan speed control
• Voltage sensing to detect out of range values
®
Platform Innovation Framework for extensible firmware
interface
®
Express BIOS Update
Supported Operating Systems
The Desktop Board supports the following operating systems:
• Microsoft Windows* 7 Ultimate 64-bit edition
• Microsoft Windows 7 Ultimate 32-bit edition
• Microsoft Windows 7 Professional 64-bit edition
• Microsoft Windows 7 Professional 32-bit edition
• Microsoft Windows 7 Home Premium 64-bit edition
• Microsoft Windows 7 Home Premium 32-bit edition
• Microsoft Windows 7 Starter 64-bit edition
• Microsoft Windows 7 Starter 32-bit edition
• Microsoft Windows Vista* Ultimate
• Microsoft Windows Vista Enterprise
• Microsoft Windows Vista Business
• Microsoft Windows Vista Home Premium
• Microsoft Windows Vista Home Basic
• Microsoft Windows Vista Ultimate 64-bit edition
• Microsoft Windows Vista Enterprise 64-bit edition
• Microsoft Windows Vista Business 64-bit edition
• 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
10
Desktop Board Features
Desktop Board Components
Figure 1 shows the approximate location of the major components on Intel Desktop
Board DP55WB.
Figure 1. Intel Desktop Board DP55WB Components
11
Intel Desktop Board DP55WB Product Guide
Table 2. Intel Desktop Board DP55WB Components
Label Description
A PCI bus connector
B Front panel audio header
C PCI Express 2.0 x1 connector
D PCI Express 2.0 x1 connector
E PCI Express 2.0 x16 connector
F Back panel connectors
G Rear chassis fan header
H Processor fan header
I 12 V processor core voltage connector (2 x 2 pin)
J Processor socket
K DDR3 Channel A, DIMM 0 and DIMM 1 sockets
L DDR3 Channel B, DIMM 0 and DIMM 1 sockets
M Standby power indicator LED
N Main power connector (2 x 12 pin)
O Front panel header
P Front chassis fan header
Q Battery
R Alternate front panel power LED header
S BIOS configuration jumper block
T Speaker
U Serial ATA connectors (6)
V USB 2.0 header
W USB 2.0 header with support for an Intel Z-U130 USB Solid-state Drive or
compatible device
X USB 2.0 header
Y Chassis intrusion header
Z IEEE 1394a header
AA S/PDIF header
12
Desktop Board Features
Online Support
For more information on Intel Desktop Board DP55WB consult the following online
resources:
• Intel Desktop Board DP55WB http://www.intel.com/products/motherboard/DP55WB
/index.htm
• Desktop Board Support http://support.intel.com/support/motherboards/deskt
op/DP55WB
• Available configurations for Intel
Desktop Board DP55WB
• Supported processors http://processormatch.intel.com
• Chipset information http://www.intel.com/products/desktop/chipsets/inde
• BIOS and driver updates http://downloadcenter.intel.com/
• Integration information http://www.intel.com/support/go/buildit
http://www.intel.com/products/motherboard/DP55WB
/index.htm
x.htm
Processor
CAUTION
Failure to use an appropriate power supply and/or not connecting the 12 V (2 x 4 pin)
power connector to the Desktop Board may result in damage to the board, or the
system may not function properly.
Intel Desktop Board DP55WB supports an Intel processor in the LGA1156 package.
Processors are not included with the Desktop Board and must be purchased
separately. The processor connects to the Desktop Board through the LGA1156
socket.
For information on supported processors for Intel Desktop Board DP55WB, go to
http://processormatch.intel.com
.
13
Intel Desktop Board DP55WB Product Guide
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 supports the following memory:
• Four 240-pin Double Data Rate 3 (DDR3) SDRAM Dual Inline Memory Module
(DIMM) connectors with gold-plated contacts arranged in two channels
• 1333/1066 MHz DDR3 SDRAM interface
• Support for single- and dual-channel memory interleaving
• Unbuffered, non-registered single- or double-sided DIMMs with a voltage rating of
less than 1.6 V
NOTE
Using a DIMM with a voltage rating higher than 1.6 V may damage the processor.
• Non-ECC DDR3 memory
• Serial Presence Detect (SPD) memory only
• Up to 16 GB maximum total system memory
NOTE
32-bit operating systems are limited to a maximum of 4 GB of memory. These
operating systems will report less than 4 GB because of the memory used by
add-in graphics cards and other system resources.
14
Desktop Board Features
Intel® P55 Express Chipset
The Intel P55 Express Chipset consists of the Intel P55 Express Platform Controller
Hub (PCH). The PCH is the centralized controller for the board’s I/O paths.
Audio Subsystem
The onboard audio subsystem consists of the following components:
• Intel P55 PCH
• Realtek ALC888 codec
The subsystem has the following headers and connectors:
• Back panel audio connectors
• Front panel audio header that provides support for High Definition Audio and
AC ’97 Audio front panel mic in and line out connectors
• An onboard S/PDIF header
The audio subsystem supports the following features:
• A signal-to-noise (S/N) ratio of 97 dB
• Independent multi-streaming 6-channel (5.1) audio (using the back panel audio
connectors) and 2-channel audio (using the front panel audio header)
LAN Subsystem
The LAN subsystem includes:
• Intel P55 PCH
• Intel 82578DC Gigabit (10/100/1000 Mb/s) Ethernet LAN controller
• RJ-45 LAN connector with integrated status LEDs
The subsystem features:
• CSMA/CD protocol engine
• LAN connect interface between PCH 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 as shown in Table 3.
15
Intel Desktop Board DP55WB Product Guide
Figure 2. LAN Connector LEDs
Table 3. LAN Connector LEDs
LED LED Color LED State Indicates
A Off LAN link is not established
Blinking LAN activity is occurring
B
Green
On LAN link is established
N/A Off 10 Mb/s data rate
Green On 100 Mb/s data rate
Yellow On 1000 Mb/s data rate
USB 2.0 Support
The Desktop Board provides 14 USB 2.0 ports (eight ports routed to back panel
connectors and six ports routed to three onboard headers). One of the onboard
headers supports an Intel Z-U130 USB Solid-state Drive or compatible device. 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.
16
Desktop Board Features
Serial ATA Support
Intel Desktop Board DP55WB supports six onboard 3.0 Gb/s Serial ATA (SATA)
channels via the PCH.
The six onboard SATA channels provided by the PCH support the following Intel
Matrix Storage Technology RAID (Redundant Array of Independent Drives) levels:
• RAID 0 - data striping
• RAID 1 - data mirroring
• RAID 0+1 (or RAID 10) - data striping and data mirroring
• RAID 5 - distributed parity
For information on configuring your system for RAID using Intel Matrix Storage
Technology see Chapter 4.
Expandability
Intel Desktop Board DP55WB provides the following expansion capability:
• One PCI Express 2.0 x16 port
• Two PCI Express 2.0 x1 ports
• One PCI bus interface
®
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, and the
PCI Express and SATA auto-configuration utilities. The BIOS is stored in the Serial
Peripheral Interface (SPI) Flash device.
The BIOS can be updated by following the instructions in Chapter 3 starting on
page 59.
Serial ATA Auto Configuration
If you install a Serial ATA device (such as a hard drive) in your computer, the autoconfiguration 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 device. You can override the auto-configuration options by specifying
manual configuration in the BIOS Setup program.
PCI Express* Auto Configuration
If you install a PCI Express add-in card in your computer, the PCI Express autoconfiguration 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 Express add-in card.
17
Intel Desktop Board DP55WB 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 <Enter> at the password
prompt of Setup gives the user restricted access to Setup.
• If both the supervisor and user passwords are set, you must enter either the
supervisor password or the user password to access Setup. Setup options are then
available for viewing and changing depending on whether the supervisor or user
password was entered.
• Setting a user password restricts who can boot the computer. The password
prompt is displayed before the computer is booted. If only the supervisor
password is set, the computer boots without asking for a password. If both
passwords are set, you can enter either password to boot the computer.
Related Links:
For instructions on resetting the password, go to Clearing Passwords on page 51.
Hardware Management
The hardware management features of Intel Desktop Board DP55WB 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
• Chassis intrusion detection
Hardware Monitoring and Fan Speed Control
The features of the hardware monitoring and fan speed control include:
• Monitoring of power supply voltages to detect levels above and below acceptable
values
• Intel
• A thermal sensor in the processor
• Thermally monitored closed-loop fan control, for all onboard fans, that can adjust
®
Precision Cooling Technology fan speed control, delivering acoustically-
optimized thermal management
fan speed
Intel® Precision Cooling Technology
Intel Precision Cooling Technology automatically adjusts processor fan speed based on
the processor temperature and adjusts chassis fan speeds based on the internal
system temperature.
18
Desktop Board Features
Chassis Intrusion
The board supports a chassis security feature that detects if the chassis cover has
been removed. The security feature uses a mechanical switch on the chassis that can
be connected to the chassis intrusion header on the Desktop Board. See Figure 22 for
the location of the c
assis intrusion header.
h
Power Management
Power management is implemented at several levels, including software support
through the Advanced Configuration and Power Interface (ACPI) and the following
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#) wakeup support
• WAKE# signal wake-up support
Software Support
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 three power connectors. See Figure 25 on page 49 for the
location of the power co
nnectors
.
19
Intel Desktop Board DP55WB 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.
• Each fan header is wired to a tachometer input of the hardware monitoring and
control device.
• All fan headers support closed-loop fan control that can adjust the fan speed or
switch the fan on or off as needed.
• All fan headers have a +12 V DC connection.
The Desktop Board has a 4-pin processor fan header and two 4-pin chassis fan
headers.
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.
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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
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 green LED is lit, standby power is still present at the memory
module sockets and the PCI bus connectors.
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://support.intel.com/support/motherboards/desktop/
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Intel Desktop Board DP55WB Product Guide
Wake from USB
NOTE
Wake from USB requires the use of a USB peripheral that supports Wake from USB
and an operating system 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 state.
WAKE# Signal Wake-up Support
When the WAKE# signal on the PCI Express bus is asserted, the computer wakes from
an ACPI S1, S3, S4, or S5 state.
ENERGY STAR*, e-Standby, and EuP Compliance
The US Department of Energy and the US Environmental Protection Agency have
continually revised the ENERGY STAR requirements. Intel has worked directly with
these two governmental agencies in the definition of the new requirements. This
Desktop Board meets the ENERGY STAR Program for Computers: Version 5.0 Category
B requirements.
For information about ENERGY STAR requirements and recommended configurations,
go to http://www.intel.com/go/energystar
The Desktop Board also meets the following international requirements:
• Republic of Korea e-Standby program
• European Union Energy using Products (EuP) directive
.
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Desktop Board Features
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). Refer to Appendix A
for a description of the board’s beep codes.
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 52 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.
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Intel Desktop Board DP55WB Product Guide
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