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