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Technical
Reference
Guide
for
Compaq Deskpro 4000N and 4000S Personal Computers
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This hardcopy is designed to be placed into a standard 3-ring binder. Provided below is a title block that can be copied and cut out and placed into the slip or taped onto the edge of the binder. Deskpro 4000N and 4000S Personal Computers TRG
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Technical Reference Guide NOTICE The information in this document is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS HEREIN; NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL. IT IS THE RESPONSIBILITY OF MANUFACTURERS TO ENSURE THAT DEVICES DESIGNED TO BE USED WITH COMPAQ PRODUCTS COMPLY WITH FCC CLASS B EMISSIONS REQUIREMENTS. This guide contains informa
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Technical Reference Guide ii Compaq Deskpro 4000N and 4000S Personal Computers First Edition – September 1997
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Technical Reference Guide TABLE OF CONTENTS CHAPTER 1 INTRODUCTION............................................................................................................. 1.1 ABOUT THIS GUIDE ........................................................................................................... 1-1 1.1.1 USING THIS GUIDE ..................................................................................................... 1-1 1.1.2 ADDITIONAL INFORMATION SOURCES.........................
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Technical Reference Guide CHAPTER 4 SYSTEM SUPPORT......................................................................................................... 4.1 INTRODUCTION.................................................................................................................. 4-1 4.2 PCI BUS OVERVIEW........................................................................................................... 4-2 4.2.1 PCI CONNECTOR........................................................
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Technical Reference Guide 5.6 KEYBOARD/POINTING DEVICE INTERFACE ............................................................... 5-28 5.6.1 KEYBOARD INTERFACE OPERATION ................................................................... 5-28 5.6.2 POINTING DEVICE INTERFACE OPERATION ....................................................... 5-30 5.6.3 KEYBOARD/POINTING DEVICE INTERFACE PROGRAMMING ......................... 5-30 5.6.4 KEYBOARD/POINTING DEVICE INTERFACE CONNECTOR....................
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Technical Reference Guide 8.4 CLIENT MANAGEMENT SUPPORT................................................................................... 8-5 8.4.1 SYSTEM ID................................................................................................................... 8-7 8.4.2 SYSTEM INFORMATION TABLE ............................................................................... 8-7 8.4.3 TEMPERATURE SENSOR..................................................................................
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Technical Reference Guide C.3 SCANNER DESCRIPTION.................................................................................................C-14 C.3.1 SCANNER OPERATION.............................................................................................C-15 C.3.2 SCANNER INTERFACE .............................................................................................C-18 C.3.3 SCANNER SPECIFICATIONS/REQUIREMENTS......................................................C-20
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Technical Reference Guide LIST OF FIGURES FIGURE 2–1. COMPAQ DESKPRO 4000S PERSONAL COMPUTER WITH MONITOR....................................... 2-1 FIGURE 2–2. CABINET LAYOUT, FRONT VIEW ....................................................................................... 2-4 FIGURE 2–3. CABINET LAYOUT, REAR VIEW ......................................................................................... 2-5 FIGURE 2–4. CHASSIS LAYOUT, TOP VIEW ..........................................
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Technical Reference Guide LIST OF TABLES TABLE 1–1. ACRONYMS AND ABBREVIATIONS....................................................................................... 1-3 TABLE 2–1. ARCHITECTURAL COMPARISON............................................................................................. 2-8 TABLE 2–2. SUPPORT CHIPSETS .......................................................................................................... 2-11 TABLE 2–3. GRAPHICS SUBSYSTEM OVERVIEW.............
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Technical Reference Guide TABLE 5–12. SERIAL INTERFACE CONTROL REGISTERS........................................................................ 5-17 TABLE 5–13. PARALLEL INTERFACE CONFIGURATION REGISTERS......................................................... 5-23 TABLE 5–14. PARALLEL INTERFACE CONTROL REGISTERS ................................................................... 5-24 TABLE 5–15. DB-25 PARALLEL CONNECTOR PINOUT ..........................................................
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Technical Reference Guide Chapter 1 INTRODUCTION 1. Chapter 1 INTRODUCTION 1.1 ABOUT THIS GUIDE This guide provides technical information about the Compaq Deskpro 4000N and 4000S Personal Computers. This document includes information regarding system design, function, and features that can be used by programmers, engineers, technicians, and system administrators. 1.1.1 USING THIS GUIDE This guide consists of chapters and appendices. The chapters primarily describe the hardware and firmware el
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Chapter 1 Introduction 1.2 NOTATIONAL CONVENTIONS 1.2.1 VALUES Hexadecimal values are indicated by the letter “h” following an alpha-numerical value. Binary values are indicated by the letter “b” following a value of ones and zeros. Memory addresses expressed as “SSSS:OOOO” (SSSS = 16-bit segment, OOOO = 16-bit offset) can be assumed as a hexadecimal value. Values that have no succeeding letter can be assumed to be decimal. 1.2.2 RANGES Ranges or limits for a parameter are shown as a pair of val
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Technical Reference Guide 1.3 COMMON ACRONYMS AND ABBREVIATIONS Table 1-1 lists the acronyms and abbreviations used in this guide. Table 1–1. Acronyms and Abbreviations Table 1-1. Acronyms and Abbreviations Acronym/Abbreviation Description A ampere AC alternating current ACPI Advanced Configuration and Power Interface A/D analog-to-digital AGP advanced graphics port API application programming interface APM advanced power management ASIC application-specific integrated circuit AT 1. attention
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Chapter 1 Introduction Table 1-1. Acronyms and Abbreviations Continued Acronym/Abbreviation Description DIMM dual inline memory module DIN Deutche IndustriNorm (connector standard) DIP dual inline package DMA direct memory access dpi dots per inch DRAM dynamic random access memory DRQ data request EDID extended display identification data EDO extended data out (RAM type) EEPROM electrically eraseable PROM EGA enhanced graphics adapter EIA Electronic Industry Association EISA extended ISA EPP
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Technical Reference Guide Table 1-1. Acronyms and Abbreviations Continued Acronym/Abbreviation Description lb pound LCD liquid crystal display LED light-emitting diode LIF low insertion force (socket) LSI large scale integration LSb / LSB least significant bit / least significant byte LUN logical unit (SCSI) MMX multimedia extensions MPEG Motion Picture Experts Group MOSFET Metal oxide silicon field effect transistor ms millisecond MSb / MSB most significant bit / most significant byte mux mul
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Chapter 1 Introduction Table 1-1. Acronyms and Abbreviations Continued Acronym/Abbreviation Description SCSI small computer system interface SDRAM Synchronous Dynamic RAM SEC Single Edge-Connector SECAM sequential colour avec memoire (sequential color with memory) SF sign flag SGRAM Synchronous Graphics RAM SIMM single in-line memory module SIT system information table SMI system management interrupt SMM system management mode SMRAM system management RAM SPD serial presence detect SPP standar
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Technical Reference Guide Chapter 2 SYSTEM OVERVIEW 2. Chapter 2 SYSTEM OVERVIEW 2.1 INTRODUCTION The Compaq Deskpro 4000N and 4000S Personal Computers are based on Pentium microprocessors featuring MMX technology and designed with an emphasis on speed, storage capacity, and multimedia compatibility to meet the requirements of the business environment. These models feature architectures incorporating the PCI and ISA buses. All models are easily upgradeable and expandable to keep pace with the n
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Chapter 2 System Overview 2.2 FEATURES This section describes the standard and distinguishing features. 2.2.1 STANDARD FEATURES The following standard features are included on all models: ♦ Pentium microprocessor with MMX technology ♦ 256-KB second-level cache ♦ 16 or 32 megabytes of SDRAM, with support for ECC and SDP memory ♦ Integrated S3 Trio64V2/GX graphics controller with 2-MB frame ♦ Enhanced IDE controller supporting Ultra ATA (UDMA) modes 0-2 ♦ Hard drive fault prediction ♦ PCI connect
