Intel BOXD845GVFNL, Desktop Board D845GVFN Specifications
Intel® Desktop Board
D845GVFN
Technical Product Specification
The Intel® Desktop Board D845GVFN 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 D845GVFN Specification Update.
August 2004
Order Number: C83644-001
Revision History
Revision Revision History Date
-001 First release of the Intel® Desktop Board D845GVFN Technical Product
Specification.
August 2004
This product specification applies to only standard Intel
®
Desktop Board D845GVFN with BIOS
identifier FN84510A.86A.
Changes to this specification will be published in the Intel Desktop Board D845GVFN
Specification Update before being incorporated into a revision of this document.
INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS. 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 Corporation may have patents or pending patent applications, trademarks, copyrights, or other intellectual property
rights that relate to the presented subject matter. The furnishing of documents and other materials and information does not
provide any license, express or implied, by estoppel or otherwise, to any such patents, trademarks, copyrights, or other
intellectual property rights.
Intel products are not intended for use in medical, life saving, or life sustaining applications or for any other application in
which the failure of the Intel product could create a situation where personal injury or death may occur.
Intel may make changes to specifications, product descriptions, and plans at any time, without notice.
The Intel
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 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
P.O. Box 5937
Denver, CO 80217-9808
or call in North America 1-800-548-4725, Europe 44-0-1793-431-155, France 44-0-1793-421-777,
Germany 44-0-1793-421-333, other countries 708-296-9333.
Intel, Pentium, and Celeron are 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.
Copyright © 2004, Intel Corporation. All rights reserved.
®
Desktop Board D845GVFN may contain design defects or errors known as errata that may cause the product to
Preface
This Technical Product Specification (TPS) specifies the board layout, components, connectors,
®
power and environmental requirements, and the BIOS for the Intel
describes the standard product and available manufacturing options.
Intended Audience
The TPS is intended to provide detailed, technical information about the Desktop Board
D845GVFN and their 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 Desktop Board D845GVFN
2 A map of the resources of the desktop board
3 The features supported by the BIOS Setup program
4 A description of the BIOS error messages, beep codes, and POST codes
Desktop Board D845GVFN. It
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.
INTEGRATOR’S NOTES
Integrator’s notes are used to call attention to information that may be useful to system integrators.
CAUTION
Cautions are included to help you avoid damaging hardware or losing data.
WARNING
Warnings indicate conditions, which if not observed, can cause personal injury.
iii
Intel Desktop Board D845GVFN Technical Product Specification
Other Common Notation
# Used after a signal name to identify an active-low signal (such as USBP0#)
(NxnX) When used in the description of a component, N indicates component type, xn are the relative
coordinates of its location on the Desktop Board D845GVFN, and X is the instance of the
particular part at that general location. For example, J5J1 is a connector, located at 5J. It is
the first connector in the 5J area.
GB Gigabyte (1,073,741,824 bytes)
GB/sec Gigabytes per second
KB Kilobyte (1024 bytes)
Kbit Kilobit (1024 bits)
kbits/sec 1000 bits per second
MB Megabyte (1,048,576 bytes)
MB/sec Megabytes per second
Mbit Megabit (1,048,576 bits)
Mbit/sec 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......................................................................................................................10
1.1.1 Feature Summary..........................................................................................10
1.1.2 Manufacturing Options ..................................................................................11
1.1.3 Board Layout.................................................................................................12
1.2 Block Diagram..............................................................................................................13
1.3 Online Support.............................................................................................................14
1.4 Operating System Support...........................................................................................14
1.5 Design Specifications...................................................................................................15
1.6 Processor.....................................................................................................................18
1.7 System Memory...........................................................................................................19
1.8 Intel® 845GV Chipset...................................................................................................21
1.8.1 Intel® Extreme Graphics Controller................................................................21
1.8.2 USB...............................................................................................................26
1.8.3 IDE Interfaces................................................................................................26
1.8.4 Real-Time Clock, CMOS SRAM, and Battery................................................27
1.9 I/O Controller................................................................................................................28
1.9.1 Serial Ports....................................................................................................28
1.9.2 Parallel Port...................................................................................................28
1.9.3 Diskette Drive Controller................................................................................28
1.9.4 Keyboard and Mouse Interface .....................................................................28
1.10 Audio Subsystem.........................................................................................................29
1.10.1 Audio Connectors..........................................................................................29
1.10.2 Audio Subsystem Software ...........................................................................30
1.11 LAN Subsystem (Optional)...........................................................................................30
1.11.1 Intel® 82562ET Platform LAN Connect Device..............................................30
1.11.2 RJ-45 LAN Connector with Integrated LEDs.................................................31
1.11.3 LAN Subsystem Software..............................................................................31
1.12 Hardware Management Subsystem (Optional)............................................................31
1.12.1 Hardware Monitoring and Fan Control ASIC.................................................31
1.12.2 Fan Monitoring...............................................................................................32
1.12.3 Chassis Intrusion and Detection....................................................................32
1.13 Power Management.....................................................................................................32
1.13.1 ACPI..............................................................................................................32
1.13.2 Hardware Support .........................................................................................35
2 Technical Reference
2.1 Introduction ..................................................................................................................39
2.2 Memory Map................................................................................................................39
2.3 Fixed I/O Map...............................................................................................................40
2.4 DMA Channels.............................................................................................................41
2.5 PCI Configuration Space Map......................................................................................41
2.6 Interrupts......................................................................................................................42
2.7 PCI Interrupt Routing Map ...........................................................................................43
v
Intel Desktop Board D845GVFN Technical Product Specification
2.8 Connectors...................................................................................................................45
2.8.1 Back Panel Connectors.................................................................................46
2.8.2 Internal I/O Connectors .................................................................................47
2.8.3 External I/O Connectors................................................................................52
2.9 Jumper Blocks..............................................................................................................56
2.9.1 Front Panel Audio Connector/Jumper Block .................................................56
2.9.2 BIOS Setup Configuration Jumper Block ......................................................57
2.10 Mechanical Considerations..........................................................................................58
2.10.1 I/O Shield.......................................................................................................59
2.11 Electrical Considerations..............................................................................................60
2.11.1 DC Loading....................................................................................................60
2.11.2 Add-in Board Considerations.........................................................................60
2.11.3 Fan Connector Current Capability.................................................................60
2.11.4 Power Supply Considerations .......................................................................61
2.12 Thermal Considerations...............................................................................................61
2.13 Reliability......................................................................................................................63
2.14 Environmental..............................................................................................................63
2.15 Regulatory Compliance................................................................................................64
2.15.1 Safety Regulations ........................................................................................64
2.15.2 EMC Regulations...........................................................................................64
2.15.3 European Union Declaration of Conformity Statement..................................65
2.15.4 Product Ecology Statements.........................................................................65
2.15.5 Product Certification Markings (Board Level)................................................66
3 Overview of BIOS Features
3.1 Introduction ..................................................................................................................67
3.2 BIOS Flash Memory Organization ...............................................................................68
3.3 Resource Configuration ...............................................................................................68
3.3.1 PCI Autoconfiguration....................................................................................68
3.3.2 PCI IDE Support............................................................................................69
3.4 System Management BIOS (SMBIOS) ........................................................................69
3.5 Legacy USB Support....................................................................................................70
3.6 BIOS Updates..............................................................................................................70
3.6.1 Language Support.........................................................................................71
3.6.2 Custom Splash Screen..................................................................................71
3.7 Boot Options ................................................................................................................71
3.7.1 CD-ROM Boot ...............................................................................................71
3.7.2 Network Boot.................................................................................................71
3.7.3 Booting Without Attached Devices................................................................72
3.7.4 Changing the Default Boot Device During POST..........................................72
3.8 Fast Booting Systems with Intel® Rapid BIOS Boot.....................................................73
3.8.1 Peripheral Selection and Configuration.........................................................73
3.8.2 Intel Rapid BIOS Boot ...................................................................................73
3.9 BIOS Security Features ...............................................................................................74
vi
4 Error Messages and Beep Codes
4.1 BIOS Error Messages..................................................................................................75
4.2 Port 80h POST Codes .................................................................................................77
4.3 Bus Initialization Checkpoints ......................................................................................81
4.4 Speaker ....................................................................................................................... 82
4.5 BIOS Beep Codes........................................................................................................82
Figures
1. Desktop Board D845GVFN Components ....................................................................12
2. Block Diagram..............................................................................................................13
3. Location of the Standby Power Indicator LED on the D845GVFN Board ....................38
4. Back Panel Connectors................................................................................................46
5. Audio, Power, and Hardware Control Connectors.......................................................48
6. Add-in Board and Peripheral Interface Connectors .....................................................51
7. External I/O Connectors...............................................................................................52
8. Connection Diagram for Front Panel Connector..........................................................53
9. Connection Diagram for Front Panel USB Connector..................................................55
10. Location of the Jumper Blocks.....................................................................................56
11. Desktop Board Dimensions..........................................................................................58
12. I/O Shield Dimensions..................................................................................................59
13. Localized High Temperature Zones.............................................................................62
Contents
Tables
1. Feature Summary ........................................................................................................10
2. Manufacturing Options.................................................................................................11
3. Specifications...............................................................................................................15
4. Supported System Bus Frequency and Memory Speed Combinations.......................19
5. Supported DDR DIMM Configurations.........................................................................20
6. Direct Draw Supported Modes.....................................................................................22
7. Video BIOS Video Modes Supported for Analog CRTs ...............................................23
8. Supported Configuration Modes ..................................................................................24
9. Details of bpp Configuration Modes.............................................................................25
10. LAN Connector LED States .........................................................................................31
11. Effects of Pressing the Power Switch ..........................................................................33
12. Power States and Targeted System Power.................................................................34
13. Wake-up Devices and Events......................................................................................34
14. Fan Connector Function/Operation..............................................................................36
15. System Memory Map ...................................................................................................39
16. I/O Map ........................................................................................................................40
17. DMA Channels.............................................................................................................41
18. PCI Configuration Space Map......................................................................................41
19. Interrupts......................................................................................................................42
20. PCI Interrupt Routing Map ...........................................................................................44
21. Front Panel Audio Connector.......................................................................................49
22. Auxiliary Line In Connector (Optional) .........................................................................49
23. ATAPI CD-ROM Connector (Optional).........................................................................49
24. ATX12V Power Connector...........................................................................................49
25. Rear Chassis Fan Connector.......................................................................................50
vii
Intel Desktop Board D845GVFN Technical Product Specification
26. Processor Fan Connector............................................................................................50
27. Main Power Connector.................................................................................................50
28. Front Chassis Fan Connector......................................................................................50
29. Chassis Intrusion Connector (Optional).......................................................................50
30. Serial Port B Connector (optional) ...............................................................................52
31. Auxiliary Front Panel Power/Sleep LED Connector.....................................................53
32. Front Panel Connector.................................................................................................53
33. States for a One-Color Power LED..............................................................................54
34. States for a Two-Color Power LED..............................................................................54
35. Front Panel Audio Connector/Jumper Block................................................................57
36. BIOS Setup Configuration Jumper Settings.................................................................57
37. DC Loading Characteristics .........................................................................................60
38. Fan Connector Current Capability................................................................................60
39. Thermal Considerations for Components ....................................................................62
40. Desktop Board D845GVFN Environmental Specifications...........................................63
41. Safety Regulations.......................................................................................................64
42. EMC Regulations.........................................................................................................64
43. Product Certification Markings.....................................................................................66
44. BIOS Setup Program Menu Bar...................................................................................68
45. BIOS Setup Program Function Keys............................................................................68
46. Boot Device Menu Options ..........................................................................................72
47. Supervisor and User Password Functions...................................................................74
48. BIOS Error Messages..................................................................................................75
49. Uncompressed INIT Code Checkpoints.......................................................................77
50. Boot Block Recovery Code Checkpoints .....................................................................77
51. Runtime Code Uncompressed in F000 Shadow RAM.................................................78
52. Bus Initialization Checkpoints ......................................................................................81
53. Upper Nibble High Byte Functions...............................................................................81
54. Lower Nibble High Byte Functions...............................................................................82
55. Beep Codes .................................................................................................................83
viii
1 Product Description
What This Chapter Contains
1.1 Overview......................................................................................................................10
1.2 Block Diagram..............................................................................................................13
1.3 Online Support.............................................................................................................14
1.4 Operating System Support...........................................................................................14
1.5 Design Specifications...................................................................................................15
1.6 Processor.....................................................................................................................18
1.7 System Memory...........................................................................................................19
1.8 Intel® 845GV Chipset...................................................................................................21
1.9 I/O Controller................................................................................................................28
1.10 Audio Subsystem.........................................................................................................29
1.11 LAN Subsystem (Optional)...........................................................................................30
1.12 Hardware Management Subsystem (Optional)............................................................31
1.13 Power Management.....................................................................................................32
9
Intel Desktop Board D845GVFN Technical Product Specification
1.1 Overview
1.1.1 Feature Summary
Table 1 summarizes the major features of the Intel® Desktop Board D845GVFN.
Table 1. Feature Summary
Form Factor
Processor
Memory
Chipset
Video
Audio
I/O Control
USB
Peripheral
Interfaces
Expansion
Capabilities
BIOS
Instantly Available
PC Technology
microATX (9.20 inches by 8.20 inches [233.68 millimeters by 208.28 millimeters])
• Support for an Intel
400/533 MHz system bus
• Support for an Intel
400 MHz system bus
• Two 184-pin DDR SDRAM Dual Inline Memory Module (DIMM) sockets
• Support for single-sided or double-sided DIMMs (DDR333/266/200)
• Support for up to 2 GB system memory
®
Intel
845GV Chipset, consisting of:
®
• Intel
• Intel
• 3 Mbit Firmware Hub (FWH)
Intel
Audio subsystem for AC ‘97 processing using the Realtek ALC202A codec
SMSC LPC47M172 LPC Bus I/O controller or National Semiconductor PC87372
LPC Bus I/O controller
Support for USB 2.0 devices
• Up to four USB ports
• One serial port
• One parallel port
• Two IDE interfaces with UDMA 33, ATA-66/100 support
• One diskette drive interface
• PS/2* keyboard and mouse ports
• Three fan connectors
Three PCI bus add-in card connectors (SMBus routed to PCI bus connector 2)
• Intel/AMI BIOS (resident in the 3 Mbit FWH)
• Support for Advanced Configuration and Power Interface (ACPI), Plug and Play,
• Support for PCI Local Bus Specification Revision 2.2
• Suspend to RAM support
• Wake on PCI, RS-232, front panel, PS/2 devices, and USB ports
82845GV Graphics and Memory Controller Hub (GMCH)
®
82801DB I/O Controller Hub (ICH4)
®
Extreme Graphics controller
and SMBIOS
®
Pentium® 4 processor in an mPGA478 socket with a
®
Celeron® processor in an mPGA478 socket with a
10
1.1.2 Manufacturing Options
Table 2 describes the manufacturing options on the Desktop Board D845GVFN. Not every
manufacturing option is available in all marketing channels. Please contact your Intel
representative to determine which manufacturing options are available to you.
Table 2. Manufacturing Options
®
LAN
Hardware Monitor
Subsystem
Serial Port B
ATAPI-style audio
connectors
For information about Refer to
The board’s compliance level with ACPI, Plug and Play, and SMBIOS Section 1.5, page 15
Available configurations for the Desktop Board D845GVFN Section 1.3, page 14
82562ET 10/100 Mbit/sec Platform LAN Connect (PLC) device
Intel
• Hardware monitoring and fan control ASIC
• Three fan sense inputs used to monitor fan activity
• Chassis intrusion detection
• Connector for a second serial port
Two ATAPI-style audio connectors:
• Auxiliary line input
• ATAPI CD-DROM
Product Description
11
Intel Desktop Board D845GVFN Technical Product Specification
1.1.3 Board Layout
Figure 1 shows the location of the major components on the Desktop Board D845GVFN.
BB
AA
A
C D
B
E
F
G
H
I
Z
Y
J
K
X
L
W
UMONQRSTPV
OM17296
Item Description Item Description
A Audio codec O Diskette drive connector
B Intel 82562ET 10/100 Mbit/sec (PLC) device
(optional)
C Auxiliary line-in connector (optional) Q Speaker
D ATAPI CD-ROM connector (optional) R Battery
E Back panel connectors S Auxiliary front panel power LED connector
F +12V power connector (ATX12V) T Front chassis fan connector
G Rear chassis fan connector U Chassis intrusion connector (optional)
H Intel 82845GV GMCH V BIOS Setup configuration jumper block
I mPGA478 processor socket W 3 Mbit Firmware Hub (FWH)
J Processor fan connector X Front panel connector
K DIMM sockets Y Front panel USB connector
L Serial Port B connector (optional) Z Intel 82801DB I/O Controller Hub (ICH4)
M I/O Controller AA PCI bus add-in card connectors
N Power connector BB Front panel audio connector
Figure 1. Desktop Board D845GVFN Components
P IDE connectors
12
1.2 Block Diagram
Figure 2 is a block diagram of the major functional areas of the board.
= connector or socket
USB
Product Description
Back Panel /
Front Panel
USB Ports
Primary/
Secondary IDE
mPGA478
Processor Socket
VGA Port
DIMM Banks (2)
UDMA 33 and
System Bus
(400/533 MHz)
Intel 82845GV
Graphics and
Memory Controller
Hub (GMCH)
Display
Interface
Memory Bus
ATA-66/100
SMBus
AHA
Bus
LPC Bus
I/O
Controller
SMBus
Intel 82801DB
I/O Controller Hub
(ICH4)
CSMA/CD
AC Link
(Optional)
LPC
Bus
Unit
Interface
Physical
Layer
Interface
Serial Ports
Parallel Port
PS/2 Mouse
PS/2 Keyboard
Diskette Drive
Connector
3 Mbit
Firmware Hub
(FWH)
Intel 845GV Chipset
LAN
Connector
(optional)
PCI Bus
PCI Slot 1
PCI Slot 2
PCI Slot 3
SMBus
Figure 2. Block Diagram
13
Realtek
ALC202A
Audio
Codec
Line In
Line Out
Mic In
Auxiliary Line In (optional)
CD-ROM (optional)
OM17285
Intel Desktop Board D845GVFN Technical Product Specification
1.3 Online Support
To find information about… Visit this World Wide Web site:
Intel Desktop Board D845GVFN under
“Desktop Board Products” or “Desktop
Board Support”
Available configurations for the Desktop
Board D845GVFN
Processor data sheets http://www.intel.com/design/litcentr
ICH4 addressing http://developer.intel.com/design/chipsets/datashts
Custom splash screens http://intel.com/design/motherbd/gen_indx.htm
Audio software and utilities http://www.intel.com/design/motherbd
LAN software and drivers http://www.intel.com/design/motherbd
http://www.intel.com/design/motherbd
http://support.intel.com/support/motherboards/desktop
http://developer.intel.com/design/motherbd/fn/fn_available.htm
1.4 Operating System Support
The Desktop Board D845GVFN supports drivers for all of the onboard hardware and subsystems
under the following operating systems:
• Windows* XP
• Windows ME
• Windows 2000
• Microsoft Windows 98 SE
For information about Refer to
Supported drivers Section 1.3
NOTE
Third party vendors may offer other drivers.
14
1.5 Design Specifications
Table 3 lists the specifications applicable to the Desktop Board D845GVFN.
Table 3. Specifications
Reference
Name
AC ’97
ACPI
ASF
ATA/
ATAPI-5
ATX
ATX12V
BIS
DDR
SDRAM
Specification
Title
Audio Codec ’97
Advanced Configuration and
Power Interface
Specification
Alert Standard Format (ASF)
Specification
Information Technology-AT
Attachment with Packet
Interface - 5 (ATA/ATAPI-5)
ATX Specification
ATX/ATX12V Power Supply
Design Guide
Boot Integrity Services (BIS)
Application Programming
Interface (API)
Double Data Rate (DDR)
SDRAM Specification
Design Specification for a
184 Pin DDR Unbuffered
DIMM
Intel ® JEDEC DDR 200/266
Unbuffered DIMM
Specification Addendum
Version, Revision Date,
and Ownership
Revision 2.2,
September 2000,
Intel Corporation.
Version 1.0b,
February 08, 1999,
Intel Corporation,
Microsoft Corporation, and
Toshiba Corporation.
Version 1.03,
June 20, 2001,
DMTF,
Intel Corporation.
Revision 3,
February 29, 2000,
Contact: T13 Chair,
Seagate Technology.
Version 2.03,
December 1998,
Intel Corporation.
Version 1.2,
August 2000,
Intel Corporation.
Version 1.0,
August 4, 1999,
Intel Corporation.
Version 1.0,
June 2000,
JEDEC Solid State
Technology Association.
Revision 1.0,
October 2001,
JEDEC Solid State
Technology Association.
Revision 0.9,
September 27, 2001,
Intel Corporation.
Product Description
The information is
available from…
ftp://download.intel.com/labs/
media/audio/download/ac97r2
2.pdf
http://www.acpi.info/spec10b.
htm
http://www.dmtf.org/standards
/documents/ASF/DSP0114.pd
f
http://www.t13.org
http://www.formfactors.org/de
veloper/specs/atx/atxspecs.ht
m
http://www.formfactors.org/de
veloper/specs/atx/atxspecs.ht
m
http://www.intel.com/labs/man
age/wfm/wfmspecs.htm
http://www.jedec.org/
http://www.jedec.org/
http://developer.intel.com/tech
nology/memory/index.htm
continued
15
Intel Desktop Board D845GVFN Technical Product Specification
Table 3. Specifications (continued)
Reference
Name
EHCI
EPP
El Torito
LPC
MicroATX
PCI
Plug and
Play
PXE
SFX
Specification
Title
Enhanced Host
Controller Interface
Specification for
Universal Serial Bus
IEEE Std 1284.1-1997
(Enhanced Parallel Port)
Bootable CD-ROM
Format Specification
Low Pin Count Interface
Specification
microATX Motherboard
Interface Specification
PCI Local Bus
Specification
PCI Bus Power
Management Interface
Specification
Plug and Play BIOS
Specification
Preboot Execution
Environment
SFX/SFX12V Power
Supply Design Guide
Version, Revision Date and
Ownership
Revision 1.0,
March 12, 2002,
Intel Corporation.
Version 1.7,
1997,
Institute of Electrical and
Electronic Engineers.
Version 1.0,
January 25, 1995,
Phoenix Technologies Limited
and International Business
Machines Corporation.
Revision 1.0,
September 29, 1997,
Intel Corporation.
Version 1.0,
December 1997,
Intel Corporation.
Revision 2.2,
December 18, 1998,
PCI Special Interest Group.
Revision 1.1,
December 18, 1998,
PCI Special Interest Group.
Version 1.0a,
May 5, 1994,
Compaq Computer Corporation,
Phoenix Technologies Limited,
and Intel Corporation.
Version 2.1,
September 20, 1999,
Intel Corporation.
Version 2.0,
May 2001,
Intel Corporation.
The information is
available from…
http://developer.intel.com/te
chnology/usb/download/ehc
i-r10.pdf
http://standards.ieee.org/re
ading/ieee/std_public/descri
ption/busarch/1284.11997_desc.html
http://www.phoenix.com/res
ources/specs-cdrom.pdf
http://www.intel.com/design
/chipsets/industry/lpc.htm
http://www.formfactors.org/
developer/specs/microatx/
microatx.htm
http://www.pcisig.com/speci
fications
http://www.pcisig.com/speci
fications
http://www.microsoft.com/h
wdev/tech/PnP/default.asp
ftp://download.intel.com/lab
s/manage/wfm/download/
/pxespec.pdf
http://www.formfactors.org/
developer/specs/sfx/sfx12v.
pdf
continued
16
Table 3. Specifications (continued)
Reference
Name
SMBIOS
TFX12V
UHCI
USB
Specification
Title
System Management
BIOS
TFX12V Power Supply
Design Guide
Universal Host Controller
Interface Design Guide
Universal Serial Bus
Specification
Version, Revision Date
and Ownership
Version 2.3.1,
March 16, 1999,
American Megatrends
Incorporated,
Award Software International
Incorporated,
Compaq Computer Corporation,
Dell Computer Corporation,
Hewlett-Packard Company,
Intel Corporation,
International Business Machines
Corporation,
Phoenix Technologies Limited,
and SystemSoft Corporation.
Revision 1.01,
May 2002
Intel Corporation
Revision 1.1,
March 1996,
Intel Corporation.
Revision 2.0,
April 27, 2000,
Compaq Computer Corporation,
Hewlett-Packard Company,
Lucent Technologies Inc.,
Intel Corporation,
Microsoft Corporation,
NEC Corporation, and
Koninklijke Philips Electronics
N.V.
Product Description
The information is
available from…
http://www.dmtf.org/downlo
ad/standards/DSP0119.pdf
http://www.formfactors.org/
developer/specs/tfx12v/tfx1
2v_psdg_101.pdf
http://developer.intel.com/d
esign/USB/UHCI11D.htm
http://www.usb.org/develop
ers/docs.html
WfM
Wired for Management
Baseline
Version 2.0,
December 18, 1998,
Intel Corporation.
http://www.intel.com/labs/m
anage/wfm/wfmspecs.htm
17
Intel Desktop Board D845GVFN Technical Product Specification
1.6 Processor
NOTE
Refer to Thermal Considerations (Section 2.12, page 61) for important information when using an
Intel Pentium 4 processor operating above 2.80 GHz with this Intel desktop board.
The board is designed to support the following:
• Intel Pentium 4 processors in an mPGA478 processor socket with a 533/400 MHz system bus
• Intel Celeron processors in an mPGA478 processor socket with a 400 MHz system bus
See the Intel web site listed below for the most up-to-date list of supported processors.
For information about… Refer to:
Supported processors for the D845GVFN board http://www.intel.com/design/motherbd/fn/fn_proc.htm
CAUTION
Use only the processors listed on web site above. Use of unsupported processors can damage the
board, the processor, and the power supply.
INTEGRATOR’S NOTES
• Use only ATX12V-, SFX12V-, or TFX12V-compliant power supplies with the Desktop Board
D845GVFN. ATX12V, SFX12V, and TFX12V power supplies have an additional power lead
that provides required supplemental power for the processor. Always connect the 20-pin and
4-pin leads of ATX12V, SFX12V, and TFX12V power supplies to the corresponding connectors
on the desktop board, otherwise the board will not boot.
• Do not use a standard ATX power supply. The board will not boot with a standard ATX power
supply.
• Refer to Table 4 on page 19 for a list of supported system bus frequency and memory speed
combinations.
For information about Refer to
Power supply connectors Section 2.8.2.2, page 48
18
1.7 System Memory
The Desktop Board D845GVFN has two DIMM sockets and supports the following memory
features:
• 2.5 V (only) 184-pin DDR SDRAM DIMMs with gold-plated contacts
• Unbuffered single-sided or double-sided DIMMs
• Maximum to tal system me mory: 2 GB; minimum total system memory: 64 MB
• DDR333/266/200 MHz SDRAM DIMMs only
• Serial Presence Detect (SPD)
• Suspend to RAM
Table 4 lists the supported system bus frequency and memory speed combinations.
Table 4. Supported System Bus Frequency and Memory Speed Combinations
If the processor's system bus frequency is… You can use this type of DIMM…
533 MHz DDR333 or DDR266
400 MHz DDR266 or DDR200
Product Description
CAUTION
Do not use ECC DIMMs with this board. Using ECC DIMMs could damage the board.
INTEGRATOR’S NOTES
• Registered DIMMs are not supported.
• Double-sided x16 DIMMs are not supported.
NOTE
To be fully compliant with all applicable DDR SDRAM memory specifications, the board should be
populated with DIMMs that support the Serial Presence Detect (SPD) data structure. This allows
the BIOS to read the SPD data and program the chipset to accurately configure memory settings
for optimum performance.
For information about Refer to
Obtaining DDR SDRAM specifications Section 1.5, page 15
Obtaining the PC Serial Presence Detect (SPD) Specification Section 1.5, page 15
19
Intel Desktop Board D845GVFN Technical Product Specification
Table 5 lists the supported DDR DIMM configurations.
Table 5. Supported DDR DIMM Configurations
DIMM
Capacity
64 MB SS 64 Mbit 8 M x 8/empty 8
64 MB SS 128 Mbit 8 M x 16/empty 4
128 MB DS 64 Mbit 8 M x 8/8 M x 8 16
128 MB SS 128 Mbit 16 M x 8/empty 8
128 MB SS 256 Mbit 16 M x 16/empty 4
256 MB DS 128 Mbit 16 M x 8/16 M x 8 16
256 MB SS 256 Mbit 32 M x 8/empty 8
256 MB SS 512 Mbit 32 M x 16/empty 4
512 MB DS 256 Mbit 32 M x 8/32 M x 8 16
512 MB SS 512 Mbit 64 M x 8/empty 8
1024 MB DS 512 Mbit 64 M x 8/64 M x 8 16
Note: In this column, “DS” refers to double-sided memory modules (containing DDR SDRAM devices on both sides)
and “SS” refers to single-sided memory modules (containing DDR SDRAM devices on only one side).
Configuration
(Note)
DDR SDRAM
Density
DDR SDRAM Organization
Front-side/Back-side
Number of DDR
SDRAM Devices
20
Product Description
1.8 Intel® 845GV Chipset
The Intel 845GV chipset consists of the following devices:
• Intel 82845GV Graphics and Memory Controller Hub (GMCH) with Accelerated Hub
Architecture (AHA) bus
• Intel 82801DB I/O Controller Hub (ICH4) with AHA bus
• Firmware Hub (FWH)
The GMCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the
Accelerated Hub Architecture interface. The ICH4 is a centralized controller for the board’s I/O
paths. The FWH provides the nonvolatile storage of the BIOS.
For information about Refer to
The Intel 845GV chipset http://developer.intel.com/
Resources used by the chipset Chapter 2
1.8.1 Intel® Extreme Graphics Controller
The Intel Extreme Graphics controller features the following:
• Integrated graphics controller
⎯ 32 bpp (Bits Per Pixel) graphics engine
⎯ 266 MHz core frequency
⎯ 256-bit internal data path for 2-D and 3-D graphics
⎯ Motion video acceleration
• 3-D graphics visual and texturing enhancement
• Display
⎯ Integrated 24-bit 350 MHz RAMDAC
⎯ DDC2B compliant interface
• Video
⎯ Dual monitor synchronous display
⎯ Hardware motion compensation for software MPEG2 decode
• Dynamic Video Memory Technology (DVMT) support up to 64 MB
For information about Refer to
DVMT Section 1.8.1.1, page 25
21
Intel Desktop Board D845GVFN Technical Product Specification
Table 6 lists the Direct Draw supported modes.
Table 6. Direct Draw Supported Modes
Resolution Color Palette Refresh Frequency (Hz) Notes
320 x 200
320 x 240
352 x 480
352 x 576
400 x 300
512 x 384
640 x 400
Notes: Y = Supported in driver without Direct3D* and OpenGL*
3 = Direct3D and OpenGL
256 colors 70
64 K colors 70 3
16 M colors 70 3
256 colors 70
64 K colors 70 3
16 M colors 70 3
256 colors 70
64 K colors 70 3
16 M colors 70 3
256 colors 70
64 K colors 70 3
16 M colors 70 3
256 colors 70
64 K colors 70 3
16 M colors 70 3
256 colors 70
64 K colors 70 3
16 M colors 70 3
256 colors 70
64 K colors 70 3
16 M colors 70 3
Y
Y
Y
Y
Y
Y
Y
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Table 7 lists the video BIOS video modes supported by the graphics subsystem.
Table 7. Video BIOS Video Modes Supported for Analog CRTs
Resolution Color Palette
320 x 200
16 colors 70
256 colors 70
320 x 350
360 x 400
640 x 200
640 x 350
640 x 480
16 colors 70
16 colors 70
16 colors 70
16 colors 70
16 colors 60
256 colors 60, 75, 85 G, B, L
64 K colors 60, 75, 85 G, B, L
16 M colors 60, 75, 85 G, B, L
720 x 400 16 colors 70 T, B
800 x 600
256 colors 60, 75, 85 G, B, L
64 K colors 60, 75, 85 G, B, L
16 M colors 60, 75, 85 G, B, L
1024 x 768
256 colors 60, 75, 85 G, B, L
64 K colors 60, 75, 85 G, B, L
16 M colors 60, 75, 85 G, B, L
1056 x 350 16 colors 70 T, B
1056 x 400 16 colors 70 T, B
1056 x 480 16 colors 70 T, B
1280 x 1024
256 colors 60, 75, 85 G, B, L
64 K colors 60, 75, 85 G, B, L
16 M colors 60, 75, 85 G, B, L
1600 x 1200
256 colors 60, 75, 85 G, B, L
64 K colors 60, 75, 85 G, B, L
16 M colors 60, 75, 85 G, B, L
256 colors 60, 75 G, B, L 1920 x 1440
64 K colors 60, 75 G, B, L
Notes: T = Text mode
G = Graphics mode
B = Banked addressing mode
L = Linear addressing mode
Available Refresh
Frequencies (Hz)
Notes
T, G, B
G, B
T, B
T, B
T, G, B
T, G, B
G, B
Product Description
23
Intel Desktop Board D845GVFN Technical Product Specification
Table 8 lists the supported configuration modes of the graphics subsystem.
Table 8. Supported Configuration Modes
Resolution
640 x 480 60, 72, 75, 85, 100, 120 6
800 x 600 60, 72, 75, 85, 100, 120 6
1024 x 768 60, 70, 75, 85, 100 6
1024 x 768 120 5
1152 x 864 60, 75, 85 6
1152 x 864 100 5
1280 x 720 60, 75, 85 6
1280 x 720 100 5
1280 x 768 Reduced blanking 6
1280 x 960 60, 75 6
1280 x 960 85 5
1280 x 1024
1280 x 1024
1280 x 1024
1280 x 1024
1400 x 1050
1600 x 900
1600 x 900
1600 x 900
1600 x 1200
1600 x 1200
1856 x 1392
1920 x 1080
1920 x 1080
1920 x 1200
1920 x 1440
2048 x 1536
Available Refresh
Frequencies (Hz)
60 6
75 5
85, 100 4
120 3
60 6
60 6
75, 85 4
100 3
60 4
75, 85, 100 3
60, 75 3
60 4
75, 85 3
60 3
60, 75 3
60 3
Supported bpp Configuration Mode
(see Table 9 for more information)
24
Product Description
Table 9 describes the bpp configuration mode values referenced in Table 8. In Table 9, assume that
for each configuration mode number, the features of all lower numbers are also supported. For
example, if the supported configuration mode is 4, then modes 1 through 3 are also supported.
DVD consists of both the overlay engine as well as the MPEG decoding; both are necessary for
DVD playback.
Table 9. Details of bpp Configuration Modes
Configuration Mode Number Descrip tion
6 32 bpp (16 M colors) with DVD (Overlay + MPEG decode) On
5 16 bpp (64 K colors) with DVD On
4 32 bpp (16 M colors) with DVD Off
3 16 bpp (64 K colors) with DVD Off
2 8 bpp (256 colors) with DVD On
1 8 bpp (256 colors) with DVD off
For information about Refer to
Obtaining graphics software and utilities Section 1.3, page 14
1.8.1.1 Dynamic Video Memory Technology (DVMT)
DVMT enables enhanced graphics and memory performance through Direct AGP, and highly
efficient memory utilization. DVMT ensures the most efficient use of available system memory
(up to 64 MB) for maximum 2-D/3-D graphics performance.
DVMT uses a portion of system physical memory (as set in the BIOS Setup program) for
compatibility with legacy applications. An example of this would be when using VGA graphics
under DOS. Once loaded, the operating system and graphics drivers allocate the buffers needed for
performing graphics functions.
NOTE
The use of DVMT requires operating system driver support.
For information about Refer to
Obtaining the DVMT white paper http://developer.intel.com/design/chipsets/845gv/
1.8.1.2 Zone Rendering Technology (ZRT)
The Intel Extreme Graphics Controller supports Zone Rendering Technology (ZRT). ZRT is a
process by which the screen is divided into several zones. Each zone is completely cached and
rendered on chip before being written to the frame buffer. The benefits of ZRT include the
following:
• Increased memory efficiency via better localization of data
• Increased on-chip processing speed due to decreased wait time for data
• Increased effective pixel fill rates
25
Intel Desktop Board D845GVFN Technical Product Specification
• Increased headroom for larger resolution and color depth
• Reduced power as a result of decreased memory bandwidth
• Reduction in depth and color bandwidth associated with conventional rendering
For information about Refer to
Obtaining the Zone Rendering white paper http://developer.intel.com/design/chipsets/845gv/
1.8.2 USB
The board supports up to four USB 2.0 ports, fully supports UHCI and EHCI, and uses UHCI- and
EHCI-compatible drivers. For more than four USB devices, an external hub can be connected to
any of the ports.
The ICH4 provides the USB controller for all ports. The port arrangement is as follows:
• Two ports are implemented with stacked back panel connectors, adjacent to the audio
connectors
• Two ports are routed to the front panel USB connector
NOTE
Computer systems that have an unshielded cable attached to a USB port may not meet FCC
Class B requirements, even if no device is attached to the cable. Use shielded cable that meets the
requirements for full-speed devices.
1.8.3 IDE Interfaces
The ICH4’s IDE controller has two independent bus-mastering IDE interfaces that can be
independently enabled. The IDE interfaces support the following modes:
• Programmed I/O (PIO): processor controls data transfer.
• 8237-style DMA: DMA offloads the processor, supporting transfer rates of up to 16 MB/sec.
• Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and transfer rates
of up to 33 MB/sec.
• ATA-66: DMA protocol on IDE bus supporting host and target throttling and transfer rates of
up to 66 MB/sec. ATA-66 protocol is similar to Ultra DMA and is device driver compatible.
• ATA-100: DMA protocol on IDE bus allows host and target throttling. The ICH4’s ATA-100
logic can achieve transfer rates up to 100 MB/sec.
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