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