Technical Reference Guide
Intel Pentium 4 Processor and the 845 Chipset
Page
 TRG
Page
 Featuring the Intel Pentium 4 Processor
 Second Edition -- January
 Table of Contents
 System Support
 Power Supply and Distribution
 Appendix B Ascii Character SET
 Appendix D COMPAQ/NVIDIA Vanta LT AGP Graphics Card
 Technical Reference Guide
 List of Figures
 Power Distribution and CONTROL, Block Diagram
 List of Tables
 Technical Reference Guide
 Table H-2
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 Online Viewing
About this Guide
Hardcopy
 Additional Information Sources
Model Numbering Convention
Serial Number
XXX/XNN/NN/N/NNNx
 Notational Conventions
Values
Ranges
Register Notation and Usage
 Acronyms and Abbreviations
Common Acronyms and Abbreviations
Acronym/Abbreviation Description
 DAC
DCH
DDC
DDR
 INT
IPL
IRQ
ISA
 PFC
PIN
PIO
Post
 TAD
Tafi
TCP
TFT
 System Overview
Introduction
 Features and Options
Standard Features
Feature Difference Matrix by Form Factor
Configurable
 Options
 Mechanical Design
 Front Views
Cabinet Layouts
Evo or Workstation Small Form Factor
 Rear Views
Compaq Evos and Workstation, Rear Views
 Back
Chassis Layouts
Front
 Desktop Chassis Layout, Top View
 AGP Slot PCI Slot Drive Lock
 Board Layouts
Small Form Factor Board Layouts
 Desktop or Configurable Minitower Main Board Layouts
 System Architecture
Desktop Configurable Minitower
SDR SDR/DDR
 RGB AGP
AGP Sdram
ICH2 USB LPC
FWH
 10.Processor Assembly And Mounting
Intel Pentium 4 Processor
 Chipset
Support Components
Chipset Functions
Support Component Functions
 System Memory
Mass Storage
Serial and Parallel Interfaces
Universal Serial BUS Interface
 Standard AGP Graphics Comparison
Graphics Subsystem
NVIDIA Matrox
 Specifications
Environmental Specifications Factory Configuration
Electrical Specifications
Audio Subsystem
 Physical Specifications
Diskette Drive Specifications
Small Configurable Parameter
Compaq SP#
 Optical Drive Specifications
Hard Drive Specifications
Parameter 48x CD-ROM 16/10/40x CD-RW Drive
CD-R, CD-RW
 AGP MCH
FSB I/F
XMM1 XMM2 XMM3 Dimm
 Pentium 4 Processor
Processor Overview
 CPU FPU
FSB
 Processor Upgrading
 Memory Subsystem
 Byte Description
SPD Address Map Sdram Dimm
Dimm ID
 Shows the system memory map
 Host/PCI Bridge Configuration Registers GMCH, Device
Subsystem Configuration
PCI Config Reset Addr Register Value
 System Support
 PCI BUS Overview
Eide USB
 PCI Bus Devices and Functions
 PCI BUS Transactions
Configuration Cycles
1.1 I/O and Memory Cycles
 PCI Component Configuration Access
Idsel
PCI Component
Device #
 PCI Configuration Space Type
System Board PCI Device Identification
Bist
PCI Device Vendor ID Device ID
 PCI Bus Mastering Devices
PCI BUS Master Arbitration
REQ/GNT Line Device
 PCI Power Management Support
Option ROM Mapping
PCI Interrupts
PCI SUB-BUSSES
 PCI Configuration
LPC Bridge Configuration Registers ICH2, Function 0, Device
Config Register Reset
Addr Value Register
 PCI Bus Connector Pinout
PCI Connector
Pin Signal
 AGP BUS Overview
BUS Transactions
 Data Transfers
Data Request
CLK D1A D1B D2A D2B GNT Trdy
 CLK D1A D1B D2A D2B D3A D3B D4A D4B
GNT Trdy
 AGP Configuration
Config Reset Addr Register Value
 AGP Connector
AGP Bus Connector Pinout
Ovrcnt GND VDD3
VDD
 Interrupts
System Resources
Maskable Interrupts
 Apic Mode
Priority Signal Label Source Typical
Mode
Maskable Interrupt Priorities and Assignments
 Non-Maskable Interrupts
NMI- Generation
Maskable Interrupt Control Registers
Port Register
 SMI- Generation
IOCHK- NMI
 Default DMA Channel Assignments
Direct Memory Access
DMA Channel Device ID
 DMA Page Register Addresses
DMA Page Registers
DMA Channel Register I/O Port
 DMA Controller Registers
DMA Controller Registers
Register Controller
 Clock Generation and Distribution
System Clock Distribution
Frequncy Source Destination
 REAL-TIME Clock and Configuration Memory
Clearing Cmos
 Cmos Archive and Restore
Configuration Memory Cmos Map
Standard Cmos Locations
Location Function
 Power-On Password
Setup Password
System Management
Security Functions
 1.4 I/O Interface Security
Cable Lock Provision
Chassis Security
 Power Management
System Boot/ROM Flash Status LED Indications
System Status
Acpi Wake-Up Event System Wakes From
 Thermal Sensing and Cooling
Power Hard Drive System Status
System Operational Status LED Indications
 11.Small Form Factor Fan Control Block Diagram
 Register MAP and Miscellaneous Functions
System I/O MAP
System I/O Map
Port Function
 2 LPC47B367 I/O Controller Functions
Index Function Reset Value
LPC47B367 I/O Controller Control Registers
 System Status Power LED
HD LED
 Enhanced IDE Interface
IDE Programming
 IDE Configuration Registers
Eide PCI Configuration Registers 82801, Device 31/Function
IDE Bus Master Control Registers
IDE Bus Master Control Registers
 Pin Primary IDE Connector Pinout
IDE Connector
Pin Signal Description
 Diskette Drive Interface
 Diskette Drive Interface Configuration
Diskette Drive Interface Configuration Registers
Index Reset
Diskette Drive Programming
 Diskette Drive Interface Control Registers
Pri
 Diskette Drive Connector
Pin Diskette Drive Connector Pinout
 DB-9 Serial Connector Pinout
Serial Connector
Serial Interface
 Serial Interface Configuration
Serial Interface Configuration Registers
Serial Interface Programming
Function
 Serial Interface Control Registers
Serial Interface Control
Addr Register
 Standard Parallel Port Mode
Parallel Interface
 Enhanced Parallel Port Mode
Extended Capabilities Port Mode
 Parallel Interface Configuration Registers
Parallel Interface Configuration
Parallel Interface Programming
 Parallel Interface Control Registers
Parallel Interface Control
Address Register
 DB-25 Parallel Connector Pinout
Parallel Interface Connector
Pin Signal Function
 KEYBOARD/POINTING Device Interface
Keyboard Interface Operation
 To-Keyboard Commands
Command
 3.1 8042 Configuration
Keyboard Interface Configuration Registers
Pointing Device Interface Operation
KEYBOARD/POINTING Device Interface Programming
 3.2 8042 Control
Port 60h
 CPU Commands To
Value Command Description
 Keyboard/Pointing Device Connector Pinout
KEYBOARD/POINTING Device Interface Connector
Data
 USB I/F, Block Diagram
USB Data Formats
 CRC
 USB Configuration
USB Interface Configuration Registers
USB Programming
USB Control
 USB Connector
USB Connector Pinout
USB Cable Data
USB Cable Length Data
 Functional Analysis
 TDA
Front Panel Assembly
CD ROM
 2 AC97 Audio Controller
3 AC97 Link BUS
Sync
SD OUT
 Audio Codec
PB Data R
 Audio Configuration
Audio Programming
Audio Control
AC’97 Audio Codec Control Registers
 AC97 Audio Subsystem Specifications
Audio Specifications
Paramemter
 TX/RX LAN PHY I/F
TX/RX
 Wake on LAN Support
Alert on LAN Support
AOL Events
Event Description
 APM Environment
Power Management Support
Acpi Environment
 Configuration
NIC Programming
Control
NIC Control Registers
 NIC Connector
NIC Specifications
NIC Specifications
MS-DOS
 NIC UPGRADING/CHANGING
AOL/SOS
Asic PCI
SOS PCI
 Remote System Alert Events
 Power Supply ASSEMBLY/CONTROL
AUX
 Watt Power Supply Assembly Specifications PN
Power Supply Assembly
Range Min. Current Max Surge
 Power Button
Power Control
System State Pressed Power Button Results
 Power LED Condition
Power LED Indications
Wake Up Events
 System Power States
Power Transition OS Restart State System Condition
 Power Distribution
1 3.3/5/12 VDC Distribution
Conn Pin
RTN
 Desktop and Configurable Minitower Power Cable Diagram
 LOW Voltage PRODUCTION/DISTRIBUTION
VID0 VID1 VID2
VID4
AGP PWR DDR
 System Board
Signal Distribution
IDE I/F CD-ROM
 Desktop/Minitower Signal Distribution Diagram
System
 CD ROM Audio Header P7
Power Button/LED Header P5
AOL/SOS Header P12
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 Bios ROM
 Boot Block Codes
ROM Flashing
Upgrading
Num Lock Cap Lock Scroll Lock
 Changeable Splash Screen
\Flashi.exe ImageFilename BackgroundColor ForegroundColor
 Boot Device Order
Boot Functions
Network Boot F12 Support
 Memory Detection and Configuration
Boot Error Codes
Boot Error Codes
Visual Audible Meaning
 Setup Utility Functions
Setup Utility
Heading Option Description
 Translation Mode IDE disks only
Removable Media Boot
Translation Parameters IDE Disks only
Multisector Transfers IDE ATA devices only
 Heading Option Description
CTRL+ALT+DEL
 Setup Utility Functions
 Setup Utility Functions
 Setup Utility Functions
 Client Management Functions
Function Mode
Client Management Functions INT15
 Input EAX
Output
EBX
ECX
 Edid Retrieve
System ID and ROM Type
System System ID ROM Family PnP ID
 Temperature Status
Drive Fault Prediction
PnP Bios Functions
PNP Support
 Smbios
 Power Management Functions
System Timer
IDE Hard Drive Timer
Independent PM Support
 Going to Sleep in Independent PM
System Standby
IDE Hard Drive Standby
Suspend
 Acpi Support
APM 1.2 Support
 APM Bios Functions
APM Bios Function Description
 Staying Awake in APM
 System/Hard Drive Standby
Going to Sleep in APM
System Suspend
 Waking Up in APM
USB Legacy Support
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 BEEP/KEYBOARD LED Codes
Table A-1
Beep/Keyboard LED Codes
Beeps LED Probable Cause
 POWER-ON Self Test Post Messages
Power-On Self Test Post Messages
Error Message Probable Cause
Table A-2
 System Error Messages
System Error Messages
Table A-3
Message Probable Cause
 Memory Error Messages
Keyboard Error Messages
Table A-4
Table A-5
 Printer Error Messages
Video Graphics Error Messages
Table A-6
Table A-7
 Diskette Drive Error Messages
Serial Interface Error Messages
Table A-8
Table A-9
 Modem Communications Error Messages
Table A-10
 System Status Error Messages
Hard Drive Error Messages
Table A-11
Table A-12
 Table A-13
Table A-14
 17 DVD/CD-ROM Error Messages
Audio Error Messages
Network Interface Error Messages
 Scsi Interface Error Messages 65xx-xx, 66xx-xx
Pointing Device Interface Error Messages
Table A-18
Table A-19
 12Compaq Personal Computers
 Symbol Dec Hex
Table B-1
Ascii Character Set
Dec Hex
 Dec Hex Symbol
Table B-1.ASCII Code Set
 Keyboard
 Keystroke Processing
 1 PS/2-TYPE Keyboard Transmissions
Parameter Minimum Nominal Maximum
 USB-TYPE Keyboard Transmissions
 Keyboard Layouts
Standard Enhanced Keyboards
 Windows Enhanced Keyboards
Figure C-6.National Windows 102W-Key Keyboard Key Positions
 Easy Access Keyboards
Figure C-8.8-Button Easy Access Keyboard Layout
 Keys
Special Single-Keystroke Functions
 Multi-Keystroke Functions
Windows Keystrokes
 Easy Access Keystrokes
Button # Description Default Function
 Keyboard Commands
Keyboard-to-System Commands
Command
Scan Codes
 Table C-2
Keyboard Scan Codes
Key Make / Break Codes Hex Pos
Mode
 Table C-2. Keyboard Scan Codes
 Key
7E/FE
 Table C-2. Keyboard Scan Codes
 Connectors
Pin
 COMPAQ/NVIDIA Vanta LT AGP Graphics Card
Sdram Nvidia
 Functional Description
 Display Modes
Resolution Bits per pixel Color Depth
Nvidia Vanta LT Display Modes
 Monitor Power Management Conditions
Power Management and Consumption
Software Support Information
 Monitor Connector
DB-15 Monitor Connector Pinout
SDA
SCL
 6Compaq Personal Computers
 COMPAQ/NVIDIA QUADRO2 EX/MXR AGP Graphics Cards
 Appendix E Compaq/NVIDIA Quadro2 EX/MXR AGP Graphics Cards
 Table E-1
Resolution Bits per pixel Color Depth
Nvidia Quadro2 EX/MXR Graphics Display Modes
 Monitor Power Management Conditions
Table E-2
 Pin Signal Description
DB-15 Monitor Connector Pinout
Table E-3
 6Compaq Personal Computers
 Appendix F COMPAQ/Matrox Millennium G450
 Appendix H Compaq/Matrox Millennium G450 AGP Graphics Card
 Table F-1
Matrox Millennium G450 Graphics Display Modes
 Table F-2
 Table F-3
 Video In Connector Pinout
Video Feature Connector
Table F-4
 COMPAQ/ADAPTEC 29160N Scsi Host Adapter
 Appendix G Compaq/Adaptec 29160N Scsi Host Adapter
 Scsi Adapter Programming Scsi Adapter Configuration
Scsi Adapter Control
Table G-1
Table G-2
 Scsi Connectors
External 50-PIN Ultra Scsi Connector
External Ultra Scsi Connector Pinout
Pin Signal Function
 Internal 50-Pin Ultra Scsi Connector Pinout
Internal 50-PIN Ultra Scsi Connector
Table G-4
 Ultra160 Scsi Connector Pinout
Internal 68-PIN ULTRA160 Scsi Connector
Table G-5
 PCI Graphics Card
 DVI RGB
 Card Edge Connector
 Table H-1
Matrox G200 MMS Graphics Controller Display Modes
 Display Configuration SINGLE-CARD Configuration
MULTI-CARD Configuration with Windows NT
 Table H-2
 Adapter Cable Connector
Adapter Cable Connector Pinout
Table H-3
Pin Description
 Analog Monitor Connector
Table H-4
 Digital Monitor Connector
DVI-D Connector Pinout
 10Compaq Personal Computers
 Index
Dimm support
 ROM Bios
 Specifications
Electrical
Environmental
Physical
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