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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 Online Viewing
About this Guide
Hardcopy
 XXX/XNN/NN/N/NNNx
Additional Information Sources
Model Numbering Convention
Serial Number
 Register Notation and Usage
Notational Conventions
Values
Ranges
 Acronyms and Abbreviations
Common Acronyms and Abbreviations
Acronym/Abbreviation Description
 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
 Front Views
Cabinet Layouts
Evo or Workstation Small Form Factor
 Compaq Evos and Workstation, Rear Views
Rear Views
 Back
Chassis Layouts
Front
 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
 System Architecture
Desktop Configurable Minitower
SDR SDR/DDR
 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
 Standard AGP Graphics Comparison
Graphics Subsystem
NVIDIA Matrox
 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
 AGP MCH
FSB I/F
XMM1 XMM2 XMM3 Dimm
 Processor Overview
Pentium 4 Processor
 FSB
CPU FPU
 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
 Eide USB
PCI BUS Overview
 PCI Bus Devices and Functions
 PCI BUS Transactions
Configuration Cycles
1.1 I/O and Memory Cycles
 Device #
PCI Component Configuration Access
Idsel
PCI Component
 PCI Device Vendor ID Device ID
PCI Configuration Space Type
System Board PCI Device Identification
Bist
 PCI Bus Mastering Devices
PCI BUS Master Arbitration
REQ/GNT Line Device
 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
 PCI Bus Connector Pinout
PCI Connector
Pin Signal
 BUS Transactions
AGP BUS Overview
 Data Transfers
Data Request
CLK D1A D1B D2A D2B GNT Trdy
 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
 Interrupts
System Resources
Maskable 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
 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
 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
 1.4 I/O Interface Security
Cable Lock Provision
Chassis Security
 Acpi Wake-Up Event System Wakes From
Power Management
System Boot/ROM Flash Status LED Indications
System Status
 Thermal Sensing and Cooling
Power Hard Drive System Status
System Operational Status LED Indications
 11.Small Form Factor Fan Control Block Diagram
 Port Function
Register MAP and Miscellaneous Functions
System I/O MAP
System I/O Map
 2 LPC47B367 I/O Controller Functions
Index Function Reset Value
LPC47B367 I/O Controller Control Registers
 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 Primary IDE Connector Pinout
IDE Connector
Pin Signal Description
 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
 DB-9 Serial Connector Pinout
Serial Connector
Serial Interface
 Function
Serial Interface Configuration
Serial Interface Configuration Registers
Serial Interface Programming
 Serial Interface Control Registers
Serial Interface Control
Addr Register
 Parallel Interface
Standard Parallel Port Mode
 Extended Capabilities Port Mode
Enhanced Parallel 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 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
 Keyboard/Pointing Device Connector Pinout
KEYBOARD/POINTING Device Interface Connector
Data
 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
 TDA
Front Panel Assembly
CD ROM
 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
 AC97 Audio Subsystem Specifications
Audio Specifications
Paramemter
 TX/RX
TX/RX LAN PHY I/F
 Event Description
Wake on LAN Support
Alert on LAN Support
AOL Events
 APM Environment
Power Management Support
Acpi 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
 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
 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
 System Board
Signal Distribution
IDE I/F CD-ROM
 System
Desktop/Minitower Signal Distribution Diagram
 CD ROM Audio Header P7
Power Button/LED Header P5
AOL/SOS Header P12
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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
 Boot Device Order
Boot Functions
Network Boot F12 Support
 Visual Audible Meaning
Memory Detection and Configuration
Boot Error Codes
Boot Error Codes
 Setup Utility Functions
Setup Utility
Heading Option Description
 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
Function Mode
Client Management Functions INT15
 ECX
Input EAX
Output
EBX
 Edid Retrieve
System ID and ROM Type
System System ID ROM Family PnP ID
 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/Hard Drive Standby
Going to Sleep in APM
System Suspend
 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
 17 DVD/CD-ROM Error Messages
Audio Error Messages
Network Interface 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
 Display Modes
Resolution Bits per pixel Color Depth
Nvidia Vanta LT Display Modes
 Monitor Power Management Conditions
Power Management and Consumption
Software Support Information
 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
 Table E-1
Resolution Bits per pixel Color Depth
Nvidia Quadro2 EX/MXR Graphics Display Modes
 Table E-2
Monitor Power Management Conditions
 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
 Matrox Millennium G450 Graphics Display Modes
Table F-1
 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
 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
 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
 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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