-001 First release of the Intel® Desktop Board DZ68BC Product Guide August 2011
-002 Second release of the Intel® Desktop Board DZ68BC Product Guide September 2011
-003 Third release of the Intel® Desktop Board DZ68BC Product Guide March 2012
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.
Intel Desktop Board DZ68BC 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, Intel Core, and Xeon are trademarks of Intel Corporation in the United States and/or other countries.
* Other names and brands may be claimed as the property of others.
This Product Guide gives information about board layout, component installation, BIOS
update, and regulatory requirements for Intel
®
Desktop Board DZ68BC.
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: describes the board’s adherence to safety standards and
EMC regulations and its product certifications
Conventions
The following conventions are used in this manual:
CAUTION
Cautions warn the user about how to prevent damage to hardware or loss of data.
NOTE
Notes call attention to important information.
iii
Intel Desktop Board DZ68BC Product Guide
Terminology
The table below gives descriptions of some common terms used in the product guide.
• Support for multiple PCI Express* 2.0 graphics cards
• Independent multi-streaming 8-channel (7.1) audio and 2-channel
audio subsystem, featuring:
― Intel
― Realtek* ALC892 codec
• Intel HD Audio front panel header
• Onboard 4-pin S/PDIF out header
• Back panel S/PDIF out optical connector (TOSLINK)
• One PCI Express 2.0 x16 port
• One PCI Express 2.0 x8 port (x8 electrical; x16 compatible)
• Two PCI Express 2.0 x1 ports
• Three PCI* bus connectors
Nuvoton W83677HG-I legacy I/O controller that provides support for:
• Consumer Infrared (CIR)
• Serial port via an onboard header
• Thermal and hardware management
®
High Definition (Intel® HD) Audio interface
continued
9
Intel Desktop Board DZ68BC Product Guide
Table 1. Feature Summary (continued)
Peripheral
Interfaces
RAID
LAN Support Intel 82579V Gigabit (10/100/1000 Mb/s) Ethernet LAN controller
BIOS
Power Management
Hardware and
Thermal
Management
USB Support:
• Four USB 3.0 ports: ― Two ports implemented with stacked back panel connectors
(blue)
― Two ports via an internal dual-port connector (blue)
• Fourteen USB 2.0 ports: ― Six ports implemented with stacked back panel connectors
(black)
― Eight front panel ports implemented with four dual-port internal
headers (black)
Serial ATA (SATA) Support:
• Four SATA 6.0 Gb/s ports:
― Two ports from the Intel Z68 PCH (dark blue)
― Two ports from an onboard Marvell controller (light blue)
• Four SATA 3.0 Gb/s ports (black)
• One external SATA (eSATA) 6.0 Gb/s port on the back panel from
an onboard Marvell controller (red)
IEEE 1394a Support:
• One port routed to the back panel
• One port routed to the IEEE 1394a header
®
Intel
Rapid Storage Technology (Intel® RST) version 10.6
including an RJ-45 back panel connector with integrated status LEDs
• Intel
®
Platform Innovation Framework for extensible firmware
interface
• 32 Mb symmetrical flash memory device
• Support for SMBIOS
• Intel® Express BIOS Update
• Support for Advanced Configuration and Power Interface (ACPI)
• Suspend to RAM (STR)
• Wake on USB, PCI, PCI Express, LAN, CIR, serial port, and front
panel
• ENERGY STAR* capable
Hardware and thermal management based on:
• Nuvoton W83677HG-I legacy I/O controller
• Four fan sensing inputs to monitor fan activity
• Voltage sensing to detect out of range values
10
Desktop Board Features
Supported Operating Systems
The Desktop Board provides full support for 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 32-bit edition
• Microsoft Windows Vista Business 32-bit edition
• Microsoft Windows Vista Home Premium 32-bit edition
• Microsoft Windows Vista Home Basic 32-bit edition
• Microsoft Windows Vista Ultimate 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
The Desktop Board provides limited support for the following operating systems:
• 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
11
Intel Desktop Board DZ68BC Product Guide
Desktop Board Components
Figure 1 shows the approximate location of the major components on Intel Desktop
Board DZ68BC.
Figure 1. Intel Desktop Board DZ68BC Components
12
Table 2. Intel Desktop Board DZ68BC Components
Label Description
A PCI bus connector
B PCI bus connector
C S/PDIF header
D PCI Express 2.0 x16 connector (x8 electrical; x16 compatible)
E Speaker
F PCI Express 2.0 x1 connector
G PCI bus connector
H PCI Express 2.0 x16 connector
I Rear chassis fan header
J PCI Express 2.0 x1 connector
K Back panel connectors
L 12 V processor core voltage connector (2 x 4 pin)
M Processor socket
N Processor fan header
O DIMM 3 socket
P DIMM 1 socket
Q DIMM 4 socket
R DIMM 2 socket
S Front panel CIR receiver (input) header
T Back panel CIR transmitter (output) header
U Main power connector (2 x 12 pin)
V Standby power indicator LED
W Onboard reset button
X Onboard power button
Y Front panel header
Z Front chassis fan header
AA Alternate front panel power LED header
BB Intel Z68 PCH
CC Battery
DD Two 6.0 Gb/s SATA ports (Marvell controller)
EE Two 6.0 Gb/s SATA ports (Intel Z68 PCH)
FF Four 3.0 Gb/s SATA ports (Intel Z68 PCH)
GG Serial port header
HH USB 2.0 headers
II BIOS configuration jumper block
JJ POST code LED display
KK Chassis intrusion header
• 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://ark.intel.com
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 DZ68BC supports an Intel processor in the LGA1155 package.
Processors are not included with the Desktop Board and must be purchased
separately. The processor connects to the Desktop Board through the LGA1155
socket.
For information on supported processors for Intel Desktop Board DZ68BC, go
to http://processormatch.intel.com
.
14
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 supports the following memory and interface:
(DIMM) sockets with gold-plated contacts arranged in two channels
• 2133 MHz to 1066 MHz DDR3 SDRAM Memory Modules
• Support for single- and dual-channel memory interleaving
• Unbuffered, non-registered single- or double-sided DIMMs with a voltage rating of
1.65 V or less
CAUTION
Using a DIMM with a voltage rating higher than 1.65 V may damage the
• Non-ECC DDR3 memory
• Serial Presence Detect (SPD) memory only
• Up to 32 GB maximum total system memory using 8 GB DIMMs
processor.
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.
15
Intel Desktop Board DZ68BC Product Guide
Intel® Z68 Express Chipset
The Intel Z68 Express Chipset consists of the Intel Z68 PCH. The Intel Z68 PCH
includes Intel Rapid Storage Technology and Intel Smart Response Technology.
Intel® Rapid Storage Technology
Intel Rapid Storage Technology version 10.6 enables Intel Smart Response Technology
and full Serial ATA (SATA) interface speed up to 6 Gb/s to support next-generation
Solid State Drives (SSDs) or traditional Hard Disk Drives (HDDs). Intel Rapid Storage
Technology 10.6 also adds support for greater than 2.2 TB HDDs in a RAID
configuration.
Intel® Smart Response Technology
Intel Smart Response Technology supports a single drive volume that combines the
high-performance benefits of SSDs with the large storage capacities of traditional
HDDs to dramatically increase system responsiveness and enable faster boot times.
The two technologies (SSD and HDD) appear as a single C:\ drive letter that provides
you with the familiar storage identifier.
The system automatically learns which files you access frequently and then copies
them from the HDD to the SSD. The next time you request these files, the system
loads them from the fast SSD rather than the slower HDD. For infrequently-used files,
the system loads them from the HDD when you need them.
For more information on Intel Smart Response Technology refer
to http://download.intel.com/design/flash/nand/325554.p
guide at http://www.intel.com/support/mother
032499.htm?wapkw=(smart+response)
boards/desktop/dz68db/sb/CS-
df or download the user
Audio Subsystem
The onboard audio subsystem consists of the following components:
• Intel Z68 PCH
• Realtek ALC892 codec
The subsystem has the following headers and connectors:
• Back panel audio connectors, including an S/PDIF out optical port.
• Advanced jack sense for the back panel audio connectors that enables the audio
codec to recognize the device that is connected to an audio port
•Front panel audio header that supports Intel HD Audio and AC ‘97 Audio. This
header provides mic in and line out signals for front panel audio connectors.
•An onboard S/PDIF output header
16
Desktop Board Features
The audio subsystem supports the following features:
• A signal-to-noise (S/N) ratio of 97 dB
• Independent multi-streaming 8-channel (7.1) audio (using the back panel audio
connectors) and 2-channel audio (using the Intel HD Audio front panel header)
Table 3 lists the supported functions of front p
anel and back panel audio jacks.
Table 3. Audio Jack Retasking Support
Audio
Jack
FP Green Default
FP Pink Default
BP Blue Default
BP Green Control
BP Pink Default Default
BP Black Default
BP Orange Default
Micro-
phone/
Side
Surround
Head-
phones
panel
Front
Speakers
Default
Line In
Side
Surround
Rear
Surround
Center/
Subwoofer
LAN Subsystem
The LAN subsystem includes:
• Intel Z68 PCH
• Intel 82579V 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 the Intel Z68 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 LA
N as shown in Table 4.
17
Intel Desktop Board DZ68BC Product Guide
Figure 2. LAN Connector LEDs
Table 4. LAN Connector LEDs
LED LED Color LED State Indicates
A Green Off LAN link is not established
On LAN link is established
Blinking LAN activity is occurring
B N/A Off 10 Mb/s data rate
Green On 100 Mb/s data rate
Yellow On 1000 Mb/s data rate
USB Support
The Desktop Board supports USB 2.0 and USB 3.0. There are 14 USB 2.0 ports (six
ports routed to back panel connectors and eight ports routed to four onboard
headers). The USB 2.0 ports are high-speed, full-speed, and low-speed capable.
USB 3.0 is supported with two back panel connectors (blue) and one onboard dualport connector (blue). USB 3.0 ports are backward compatible with USB 2.0 and
USB 1.1 devices. The USB 3.0 ports are SuperSpeed, high-speed, full-speed, and lowspeed capable.
SATA Support
Intel Desktop Board DZ68BC provides the following SATA support:
•Two onboard 6.0 Gb/s SATA channels provided by the Intel Z68 PCH (dark blue
connectors)
•Two onboard 6.0 Gb/s SATA channels provided by a Marvell 88SE9128 SATA
controller (light blue connectors)
•Four onboard 3.0 Gb/s SATA channels provided by the Intel Z68 PCH (black
connectors)
•One back panel 6.0 Gb/s eSATA channel (red connector)
18
Desktop Board Features
SATA RAID
The onboard SATA channels provided by the Intel Z68 PCH support Intel Rapid Storage
Technology version 10.6 which provides the following 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
Legacy I/O
Intel Desktop Board DZ68BC includes a legacy I/O controller that provides the
following I/O features:
• Consumer Infrared (CIR) support
• Serial port support via an onboard header
• Low pin count (LPC) interface
• Intelligent power management, including a programmable wake up event interface
• PCI power management support
Expandability
Intel Desktop Board DZ68BC provides the following expansion capability:
• One PCI Express 2.0 x16 port
• One PCI Express 2.0 x8 port (x8 electrical; x16 compatible)
• Two PCI Express 2.0 x1 ports
• Three PCI bus connectors
19
Intel Desktop Board DZ68BC Product Guide
Bluetooth*/WiFi Support
Intel Desktop Board DZ68BC ships with an external Bluetooth*/WiFi module that
allows you to connect to wireless networks and Bluetooth peripherals. For instructions
on how to install the Bluetooth/WiFi module in a desktop chassis, refer to “Installing
t
he WiFi/Bluetooth* Module in a Desktop Chassis (Optional)” on page 66.
Bluetooth Technology
The Bluetooth/WiFi Module enables you to connect with a variety of Bluetooth-enabled
devices. Driver support is provided by Microsoft operating systems such as Microsoft
Vista and Microsoft Windows 7. The Bluetooth driver stack is supplied by Microsoft but
some Bluetooth enabled devices might provide additional Bluetooth features and for
proper functioning of those features, will need their own supplied drivers installed.
• CSR Bluetooth module (BC0401PC08)
• Maximum data rate 3.0 Mb/s
• Forward and backward compatibility with Bluetooth v1.1, v1.2, v2.0, and v2.1
• Integrated antenna
• Operating system support for Windows XP, Windows Vista, and Windows 7 both
32 bit and 64 bit
To obtain more Bluetooth information and drivers go to http://msdn.microsoft.com/en-
us/library/aa362932(VS.85).aspx
WiFi 802.11 Wireless
The Bluetooth/WiFi Module also enables you to connect with a variety of WiFi enabled
networks and access points and also allows peer to peer connections. Driver support
is provided by Microsoft operating systems such as Microsoft Vista and Microsoft
Windows 7 with additional support provided by the supplied WiFi driver included on the
Driver DVD and online.
• Ralink WiFi 802.11 (RT8070)
• Range up to 300 meters
• Supports the following:
⎯ IEEE 802.11B supports up to 11 Mb/s data rate
⎯ IEEE 802.11G supports up to 54 Mb/s data rate
⎯ IEEE 802.11N supports up to 150 Mb/s data rate
• Integrated antenna
• Operating system support for Windows XP, Windows Vista, and Windows 7 both
32 bit and 64 bit
To obtain more WiFi information and drivers go to http://msdn.microsoft.com/en-
us/library/aa362932(VS.85).aspx
20
Desktop Board Features
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, and the
PCI/PCI Express and SATA auto-configuration utilities. The BIOS is stored in a Serial
Peripheral Interface (SPI) Flash device.
The BIOS can be updated by following the instructions in Chapter 3 starting on
page 67.
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. You can override the auto-configuration options by specifying manual
configuration in the BIOS Setup program.
PCI* and PCI Express* Auto Configuration
If you install a PCI/PCI Express add-in card in your computer, the PCI/PCI Express
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/PCI Express add-in card.
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 59.
21
Intel Desktop Board DZ68BC Product Guide
Back to BIOS Button
The back panel Back to BIOS button (Figure 3, A) duplicates the functionality of the
BIOS configuration jumper (see Setting the BIOS Configuration Jumper on page 58)
w
ith the following exceptions:
•It can only be used to force the board to power on to the BIOS Maintenance Menu
using default values but it will retain all previously saved changes.
• It cannot be used to override passwords set in the BIOS.
• It cannot be used to invoke BIOS recovery mode.
The button glows red when it is activated.
NOTE
Using the Back to BIOS button does not set the board to the factory BIOS
defaults. To restore settings to the factory defaults, use the <F9> key once
BIOS setup mode is active.
Figure 3. Location of the Back to BIOS Button
Hardware Management
The hardware management features of Intel Desktop Board DZ68BC 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
22
Desktop Board Features
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
•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.
• A thermal sensor in the processor
• Thermally monitored closed-loop fan control, for all onboard fans, that can adjust
fan speed
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 24, D
for the
location of the chassis intrusion header.
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)
• Standby Power Indicator LED
• Wake from USB
• Power Management Event signal (PME#) wakeup support
• WAKE# signal wake-up support
• Wake from Consumer IR
• Wake from serial port
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.
23
Intel Desktop Board DZ68BC Product Guide
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 27 on page 57 for the
location of the power co
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.
nnectors.
The Desktop Board has a 4-pin processor fan header and three 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.
24
Desktop Board Features
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.
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.
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 4, 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 Express connector.
25
Intel Desktop Board DZ68BC Product Guide
Figure 4. 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/
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 S3 state.
PME# Signal Wake-up Support
When the PME# signal on the PCI bus is asserted, the computer wakes from an
ACPI 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 S3, S4, or S5 state.
26
Desktop Board Features
Wake from Consumer IR
Consumer IR device activity wakes the computer from an ACPI S3, S4, or S5 state.
Wake from Serial Port
Serial port activity wakes the computer from an ACPI S3, S4, or S5 state.
Onboard Power and Reset Buttons
The lighted Power button on the Desktop Board (Figure 5, A) can be used to turn the
computer on or off. This button duplicates the function of the front panel power
button. To turn off the computer using the onboard Power button, press it for three
seconds.
The Power button stays lit when there is standby power still present on the board.
This is the case even when the computer appears to be off. For example, when this
button is lit, standby power is still present at the memory module sockets and the PCI
bus connectors.
CAUTION
If the AC power has been switched off and the onboard power button 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 lighted Reset button on the Desktop Board (Figure 5, B) can be used to reset the
board. T
his button duplicates the function of the front panel Reset button.
Figure 5. Onboard Power and Reset Buttons
27
Loading...
+ 61 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.