-001 First release of the Intel® Desktop Board D845GVFN Product Guide June 2004
-002 Second release of the Intel® Desktop Board D845GVFN Product Guide October 2004
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.
Canadian Department of Communications Compliance Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the
Radio Interference Regulations of the Canadian Department of Communications.
Le présent appareil numerique német pas de bruits radioélectriques dépassant les limites applicables aux appareils
numériques de la classe B prescrites dans le Réglement sur le broullage radioélectrique édicté par le ministére des
Communications du Canada.
Disclaimer
Information in this document is provided in connection with Intel® products. No license, express or implied, by estoppel or
otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and
Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied
warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular
purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not
intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and
product descriptions at any time, without notice.
Desktop Board D845GVFN 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, Celeron and Pentium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United
States and other countries.
* Other names and brands may be claimed as the property of others.
Pentium® 4 processor in an mPGA-478 socket with a 533/400 MHz
system bus
®
Celeron® D processor in an mPGA-478 socket with a 533 MHz system
bus
technology DRAM devices
Desktop Board D845GVFN.
Expansion Capabilities Three PCI slots
Peripheral Interfaces • Up to four USB 2.0 ports
— Two ports routed to the back panel
— Two ports routed to the USB 2.0 header
• Two IDE interfaces with Ultra DMA-33 and ATA-66/100 support
• One diskette drive interface
• One parallel port
• One serial port
• One VGA port
• PS/2* keyboard and mouse ports
BIOS
Power Management
• Intel/AMI BIOS
®
• Intel
• Intel
• SMBIOS support
• Support for Advanced Configuration and Power Interface (ACPI)
• Hardware support for power, fan, and chassis intrusion connectors, Suspend
Rapid BIOS Boot
®
Express BIOS Update
to RAM, wake from USB and PS/2 keyboard and mouse, and PME# wakeup.
9
Intel Desktop Board D845GVFN Product Guide
NOTE
✏
For information about this Intel desktop board, including the Technical Product Specification
(TPS), BIOS updates, and device drivers, go to the Intel World Wide Web site at:
Failure to use an ATX12V or SFX-12V power supply, or not connecting the additional power
supply lead to Desktop Board D845GVFN may result in damage to the desktop board and/or
power supply.
Desktop Board D845GVFN supports a single Intel Pentium 4 processor or Intel Celeron processor.
Processors are not included with the desktop board and must be purchased separately.
The processor connects to the desktop board through the mPGA-478-pin socket. The Intel
Pentium 4 processor or Intel Celeron processor may be removed and replaced with supported
higher speed processors.
Desktop Board D845GVFN supports the processors listed in Table 3.
Table 3. Processor Support
Type Designation (GHz) System Bus (MHz) L2 Cache (KB)
Desktop Board D845GVFN requires an ATX12V compliant power supply to function according to
desktop board specifications. The board has two ATX12V compliant power supply connectors
that are needed to provide extra power to the Intel 845GV chipset and Intel
®
processor.
Related Links:
Go to the following links or pages for more information about:
• Supported Intel processors for Desktop Board D845GVFN
• Instructions on installing or upgrading the processor, see page 26 in Chapter 2
• The location of the two power connectors, see page 34 in Chapter 2
13
Intel Desktop Board D845GVFN Product Guide
Main Memory
NOTE
✏
To be fully compliant with all applicable Intel® SDRAM memory specification addendums, the
desktop 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.
NOTE
✏
All memory components and DIMMs used with the desktop board must comply with the PC
SDRAM specifications. These include the PC SDRAM Specification (memory component specific)
and the PC Unbuffered DIMM Specification.
The desktop board supports single channel memory configurations defined in Table 4.
Table 4. Memory Support
Memory Speed Processor System Bus (MHz) Memory Speed Outcome (MHz)
Pentium 4 processor or
Celeron D processor
Pentium 4 processor or
Celeron processor
Pentium 4 processor or
Celeron D processor
Pentium 4 processor or
Celeron processor
• Two 2.5 V 184-pin DDR DIMM sockets with gold-plated contacts
• Serial Presence Detect (SPD)
• Unbuffered, non-ECC RAM (registered memory is not supported)
• Support for 64 Mb, 128 Mb, 256 Mb, and 512 Mb memory technologies for the following
memory configurations:
— 64 MB to 256 MB utilizing 64 Mb technology
— Up to 512 MB utilizing 128 Mb technology
— Up to 1 GB utilizing 256 Mb technology
— Up to 2 GB utilizing 512 Mb technology
Related Links:
533 333 DDR 333
400 266
533 266 DDR266
400 266
Go to the following links or pages for more information about:
• The latest list of tested memory, http://support.intel.com/support/motherboards/desktop/
The line out connector, located on the back panel, is designed to power either headphones or
amplified speakers only. Poor audio quality may occur if passive (non-amplified) speakers are
connected to this output.
Related Links:
Go to the following link for more information about audio drivers and utilities:
The Intel 82562ET (with the Intel 82801DB ICH4) provides a Fast PCI LAN subsystem providing
both 10Base-T and 100Base-TX connectivity. The Intel 82562ET provides the following
functions:
• Basic 10/100 Ethernet LAN connectivity
• Support for RJ-45 connector with status indicator LEDs
• Programmable transit threshold
• Configurable EEPROM that contains the MAC address
LAN Subsystem Software
For LAN software and drivers, refer to the D845GVFN link on Intel’s World Wide Web site at:
Two LEDs are built into the RJ-45 LAN connector. Table 5 describes the LED states when the
desktop board is powered up and the LAN subsystem is operating.
Table 5. RJ-45 LAN Connector LEDs
LED Color LED State Indicates
Off 10 Mbit/sec data rate is selected. Green
On 100 Mbit/sec data rate is selected.
Yellow
Off LAN link is not established.
On (steady state) LAN link is established.
On (brighter and pulsing) The computer is communicating with another computer on
the LAN.
Enhanced IDE Interface
The ICH4’s IDE interface handles the exchange of information between the processor and
peripheral devices like hard disks, CD-ROM drives, and Iomega Zip* drives inside the computer.
The interface supports:
• Up to four IDE devices (such as hard drives)
• ATAPI devices (such as CD-ROM drives)
• Older PIO Mode devices
• Ultra DMA-33 and ATA-66/100 protocols
• Laser Servo (LS-120) drives
Expansion Slots
Desktop Board D845GVFN has three PCI bus add-in card connectors.
16
Desktop Board Features
BIOS
The BIOS provides the Power-On Self-Test (POST), the BIOS Setup program, the PCI and IDE
auto-configuration utilities, and the video BIOS. The BIOS is stored in the firmware hub.
The BIOS can be updated by following the instructions in Chapter 3 on page 45.
PCI Auto Configuration
If you install a PCI add-in card in your computer, the PCI auto-configuration utility in the BIOS
automatically detects and configures the resources (IRQs, DMA channels, and I/O space) for that
add-in card. You do not need to run the BIOS Setup program after you install a PCI add-in card.
IDE Auto Configuration
If you install an IDE device (such as a hard drive) in your computer, the IDE auto-configuration
utility in the BIOS automatically detects and configures the device for your computer. You do not
need to run the BIOS Setup program after installing an IDE device. You can override the
auto-configuration options by specifying manual configuration in the BIOS Setup program.
To use ATA-66/100 features, the following items are required:
• An ATA-66/100 peripheral device
• An ATA-66/100 compatible cable
• ATA-66/100 operating system device drivers
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
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.
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 8 on page 31 for the location of the chassis
intrusion header.
17
Intel Desktop Board D845GVFN Product Guide
Power Management Features
• Advanced Configuration and Power Interface (ACPI)
• Hardware support:
— Power connectors
— Fan connectors
— Suspend to RAM (Instantly Available PC technology)
— Wake from USB
— Wake from PS/2 keyboard/mouse
— PME# wakeup 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.
Power Connectors
The desktop board has two power connectors. See Figure 9 on page 34 for the location of the
power connectors.
Fan Headers
The desktop board has one chassis fan header and one processor fan header. See Figure 9 on
page 34 for the location of the fan headers.
Suspend to RAM (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-to-RAM)
sleep state. While in the S3 sleep state, the computer will appear to be off. When signaled by a
wake-up device or event, the system quickly returns to its last known awake state.
If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the
LED turning amber.
18
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