
- •Preface
- •Intended Audience
- •What This Document Contains
- •Typographical Conventions
- •Contents
- •1 Product Description
- •1.1 Overview
- •1.1.1 Feature Summary
- •1.1.2 Manufacturing Options
- •1.1.3 Board Layout
- •1.2 Block Diagram
- •1.3 Online Support
- •1.4 Operating System Support
- •1.5 Design Specifications
- •1.6 Processor
- •1.7 System Memory
- •1.8 Intel® 845E Chipset
- •1.8.3 IDE Interfaces
- •1.9 I/O Controller
- •1.9.1 Serial Ports
- •1.9.2 Parallel Port
- •1.9.3 Diskette Drive Controller
- •1.9.4 Keyboard and Mouse Interface
- •1.10 Audio Subsystem
- •1.10.1 Audio Connectors
- •1.10.2 Audio Subsystem Software
- •1.11 LAN Subsystem (Optional)
- •1.11.3 LAN Subsystem Software
- •1.12 Hardware Management Subsystem (Optional)
- •1.12.1 Hardware Monitoring and Fan Control ASIC
- •1.12.2 Fan Monitoring
- •1.12.3 Chassis Intrusion and Detection
- •1.13 Power Management
- •1.13.1 ACPI
- •1.13.2 Hardware Support
- •2 Technical Reference
- •2.1 Introduction
- •2.2 Memory Map
- •2.3 Fixed I/O Map
- •2.4 DMA Channels
- •2.5 PCI Configuration Space Map
- •2.6 Interrupts
- •2.7 PCI Interrupt Routing Map
- •2.8 Connectors
- •2.8.1 Back Panel Connectors
- •2.8.2 Internal I/O Connectors
- •2.8.3 External I/O Connectors
- •2.9 Jumper Blocks
- •2.9.1 Front Panel Audio Connector/Jumper Block
- •2.9.2 BIOS Setup Configuration Jumper Block
- •2.10 Mechanical Considerations
- •2.10.1 I/O Shield
- •2.11 Electrical Considerations
- •2.11.1 DC Loading
- •2.11.3 Fan Connector Current Capability
- •2.11.4 Power Supply Considerations
- •2.12 Thermal Considerations
- •2.13 Reliability
- •2.14 Environmental
- •2.15 Regulatory Compliance
- •2.15.1 Safety Regulations
- •2.15.2 EMC Regulations
- •2.15.3 European Union Declaration of Conformity Statement
- •2.15.4 Product Ecology Statements
- •2.15.5 Product Certification Markings (Board Level)
- •3 Overview of BIOS Features
- •3.1 Introduction
- •3.2 BIOS Flash Memory Organization
- •3.3 Resource Configuration
- •3.3.1 PCI Autoconfiguration
- •3.3.2 PCI IDE Support
- •3.4 System Management BIOS (SMBIOS)
- •3.5 Legacy USB Support
- •3.6 BIOS Updates
- •3.6.1 Language Support
- •3.6.2 Custom Splash Screen
- •3.7 Recovering BIOS Data
- •3.8 Boot Options
- •3.8.2 Network Boot
- •3.8.3 Booting Without Attached Devices
- •3.8.4 Changing the Default Boot Device During POST
- •3.9 Fast Booting Systems with Intel® Rapid BIOS Boot
- •3.9.1 Peripheral Selection and Configuration
- •3.9.2 Intel Rapid BIOS Boot
- •3.10 BIOS Security Features
- •4 BIOS Setup Program
- •4.1 Introduction
- •4.2 Maintenance Menu
- •4.3 Main Menu
- •4.4 Advanced Menu
- •4.4.1 PCI Configuration Submenu
- •4.4.2 Boot Configuration Submenu
- •4.4.3 Peripheral Configuration Submenu
- •4.4.4 IDE Configuration Submenu
- •4.4.5 Diskette Configuration Submenu
- •4.4.6 Event Log Configuration Submenu
- •4.4.7 Video Configuration Submenu
- •4.4.8 USB Configuration Submenu
- •4.4.9 Chipset Configuration Submenu
- •4.5 Security Menu
- •4.6 Power Menu
- •4.6.1 ACPI Submenu
- •4.7 Boot Menu
- •4.7.1 Boot Device Priority Submenu
- •4.7.2 Hard Disk Drives Submenu
- •4.7.3 Removable Devices Submenu
- •4.8 Exit Menu
- •5 Error Messages and Beep Codes
- •5.1 BIOS Error Messages
- •5.2 Port 80h POST Codes
- •5.3 Bus Initialization Checkpoints
- •5.4 Speaker
- •5.5 BIOS Beep Codes

Product Description
1.2 Block Diagram
Figure 2 is a block diagram of the major functional areas of the board.
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Back Panel / |
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= connector or socket |
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Front Panel |
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USB Ports |
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USB |
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LPC Bus |
Serial Ports |
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Primary/ |
UDMA 33 and |
Parallel Port |
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I/O |
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PS/2 Mouse |
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Secondary IDE |
ATA-66/100 |
Controller |
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PS/2 Keyboard |
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mPGA478 |
System Bus |
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SMBus |
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Diskette Drive |
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Connector |
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Processor Socket |
(400/533 MHz) |
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LPC |
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Bus |
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Intel 82845E |
AHA |
Intel 82801DB |
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4 Mbit |
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Memory Controller |
I/O Controller Hub |
Firmware Hub |
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Bus |
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Hub (MCH) |
(ICH4) |
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(FWH) |
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Intel 845E Chipset |
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AGP |
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CSMA/CD |
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Unit |
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4X AGP Connector |
Interface |
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Interface |
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(1.5 V only) |
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Memory Bus |
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Physical |
LAN |
DIMM Banks (2) |
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Layer |
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SMBus |
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Connector |
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Interface |
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AC Link |
(Optional) |
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(Optional) |
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PCI Bus |
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PCI Slot 1 |
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PCI Slot 2 |
SMBus |
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Line In |
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PCI Slot 3 |
Realtek |
Line Out |
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ALC202A |
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Mic In |
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Audio Codec |
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CD-ROM |
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OM16270 |
Figure 2. Block Diagram
15

Intel Desktop Board D845EPI Technical Product Specification
1.3 Online Support
To find information about…
Intel Desktop Board D845EPI under “Desktop Board Products” or “Desktop Board Support”
Available configurations for the Desktop Board D845EPI
Processor data sheets
ICH4 addressing
Custom splash screens
Audio software and utilities
LAN software and drivers
Visit this World Wide Web site:
http://www.intel.com/design/motherbd
http://support.intel.com/support/motherboards/desktop
http://developer.intel.com/design/motherbd/pi/pi_available.htm
http://www.intel.com/design/litcentr
http://developer.intel.com/design/chipsets/datashts
http://intel.com/design/motherbd/gen_indx.htm
http://www.intel.com/design/motherbd
http://www.intel.com/design/motherbd
1.4 Operating System Support
The Desktop Board D845EPI supports drivers for all of the onboard hardware and subsystems
under the following operating systems: |
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• |
Windows† XP |
• |
Windows ME |
• |
Windows 2000 |
• Microsoft Windows 98 SE
For information about |
Refer to |
Supported drivers |
Section 1.3 |
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NOTE
Third party vendors may offer other drivers.
16

Product Description
1.5 Design Specifications
Table 3 lists the specifications applicable to the Desktop Board D845EPI.
Table 3. Specifications
Reference
Name
AC ’97
ACPI
AGP
ASF
ATA/ ATAPI-5
ATX
ATX12V
BIS
DDR
SDRAM
Specification |
Version, Revision Date, |
The information is |
Title |
and Ownership |
available from… |
Audio Codec ’97 |
Revision 2.2, |
ftp://download.intel.com/labs/ |
|
September 2000, |
media/audio/download/ac97r |
|
Intel Corporation. |
22.pdf |
Advanced Configuration and |
Version 1.0b, |
http://www.acpi.info/spec10b. |
Power Interface |
February 08, 1999, |
htm |
Specification |
Intel Corporation, |
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Microsoft Corporation, and |
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Toshiba Corporation. |
|
Accelerated Graphics Port |
Revision 2.0, |
http://www.agpforum.org/spec |
Interface Specification |
May 4, 1998, |
s_specs.htm |
|
Intel Corporation. |
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Alert Standard Format (ASF) |
Version 1.03, |
http://www.dmtf.org/standards |
Specification |
June 20, 2001, |
/documents/ASF/DSP0114.p |
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DMTF, |
df |
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Intel Corporation. |
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Information Technology-AT |
Revision 3, |
http://www.t13.org |
Attachment with Packet |
February 29, 2000, |
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Interface - 5 (ATA/ATAPI-5) |
Contact: T13 Chair, |
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Seagate Technology. |
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ATX Specification |
Version 2.03, |
http://www.formfactors.org/de |
|
December 1998, |
veloper/specs/atx/atxspecs.ht |
|
Intel Corporation. |
m |
ATX/ATX12V Power Supply |
Version 1.2, |
http://www.formfactors.org/de |
Design Guide |
August 2000, |
veloper/specs/atx/atxspecs.ht |
|
Intel Corporation. |
m |
Boot Integrity Services (BIS) |
Version 1.0, |
http://www.intel.com/labs/man |
Application Programming |
August 4, 1999, |
age/wfm/wfmspecs.htm |
Interface (API) |
Intel Corporation. |
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Double Data Rate (DDR) |
Version 1.0, |
http://www.jedec.org/ |
SDRAM Specification |
June 2000, |
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JEDEC Solid State |
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Technology Association. |
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Design Specification for a |
Revision 1.0, |
http://www.jedec.org/ |
184 Pin DDR Unbuffered |
October 2001, |
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DIMM |
JEDEC Solid State |
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Technology Association. |
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Intel® JEDEC DDR 200/266 |
Revision 0.9, |
http://developer.intel.com/tec |
Unbuffered DIMM |
September 27, 2001, |
hnology/memory/index.htm |
Specification Addendum |
Intel Corporation. |
|
continued
17

Intel Desktop Board D845EPI Technical Product Specification
Table 3. |
Specifications (continued) |
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Reference |
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Specification |
Version, Revision Date and |
The information is |
Name |
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Title |
Ownership |
available from… |
EHCI |
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Enhanced Host |
Revision 1.0, |
http://developer.intel.com/t |
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Controller Interface |
March 12, 2002, |
echnology/usb/download/e |
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Specification for |
Intel Corporation. |
hci-r10.pdf |
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Universal Serial Bus |
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EPP |
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IEEE Std 1284.1-1997 |
Version 1.7, |
http://standards.ieee.org/re |
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(Enhanced Parallel Port) |
1997, |
ading/ieee/std_public/descr |
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Institute of Electrical and |
iption/busarch/1284.1- |
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Electronic Engineers. |
1997_desc.html |
El Torito |
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Bootable CD-ROM |
Version 1.0, |
http://www.phoenix.com/res |
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Format Specification |
January 25, 1995, |
ources/specs-cdrom.pdf |
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Phoenix Technologies Limited |
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and International Business |
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Machines Corporation. |
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LPC |
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Low Pin Count Interface |
Revision 1.0, |
http://www.intel.com/design |
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Specification |
September 29, 1997, |
/chipsets/industry/lpc.htm |
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Intel Corporation. |
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MicroATX |
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microATX Motherboard |
Version 1.0, |
http://www.formfactors.org/ |
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Interface Specification |
December 1997, |
developer/motherboard.htm |
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Intel Corporation. |
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PCI |
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PCI Local Bus |
Revision 2.2, |
http://www.pcisig.com/speci |
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Specification |
December 18, 1998, |
fications |
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PCI Special Interest Group. |
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PCI Bus Power |
Revision 1.1, |
http://www.pcisig.com/speci |
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Management Interface |
December 18, 1998, |
fications |
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Specification |
PCI Special Interest Group. |
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Plug and |
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Plug and Play BIOS |
Version 1.0a, |
http://www.microsoft.com/h |
Play |
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Specification |
May 5, 1994, |
wdev/tech/PnP/default.msp |
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Compaq Computer Corporation, |
x |
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Phoenix Technologies Limited, |
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and Intel Corporation. |
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PXE |
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Preboot Execution |
Version 2.1, |
ftp://download.intel.com/lab |
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Environment |
September 20, 1999, |
s/manage/wfm/download/ |
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Intel Corporation. |
/pxespec.pdf |
SFX |
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SFX/SFX12V Power |
Version 2.0, |
http://www.formfactors.org/ |
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Supply Design Guide |
May 2001, |
developer/specs/sfx/sfx12v. |
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Intel Corporation. |
continued
18

Product Description
Table 3. |
Specifications (continued) |
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Reference |
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Specification |
Version, Revision Date |
The information is |
Name |
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Title |
and Ownership |
available from… |
SMBIOS |
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System Management |
Version 2.3.1, |
http://www.dmtf.org/downlo |
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BIOS |
March 16, 1999, |
ad/standards/DSP0119.pdf |
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American Megatrends |
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Incorporated, |
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Award Software International |
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Incorporated, |
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Compaq Computer Corporation, |
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Dell Computer Corporation, |
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Hewlett-Packard Company, |
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Intel Corporation, |
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International Business Machines |
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Corporation, |
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Phoenix Technologies Limited, |
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and SystemSoft Corporation. |
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TFX12V |
|
TFX12V Power Supply |
Revision 1.01, |
http://www.formfactors.org/ |
|
|
Design Guide |
May 2002 |
developer/specs/tfx12v/tfx1 |
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|
Intel Corporation. |
2v_psdg_101.pdf |
UHCI |
|
Universal Host Controller |
Revision 1.1, |
http://developer.intel.com/d |
|
|
Interface Design Guide |
March 1996, |
esign/USB/UHCI11D.htm |
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|
Intel Corporation. |
|
USB |
|
Universal Serial Bus |
Revision 2.0, |
http://www.usb.org/developers/ |
|
|
Specification |
April 27, 2000, |
docs.html |
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Compaq Computer Corporation, |
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Hewlett-Packard Company, |
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Lucent Technologies Inc., |
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Intel Corporation, |
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Microsoft Corporation, |
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NEC Corporation, and |
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Koninklijke Philips Electronics |
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N.V. |
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WfM |
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Wired for Management |
Version 2.0, |
http://www.intel.com/labs/m |
|
|
Baseline |
December 18, 1998, |
anage/wfm/wfmspecs.htm |
|
|
|
Intel Corporation. |
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19