Technical Reference Guide
Compaq Deskpro EXS and Workstation 300 Personal Computers
Featuring the Intel Pentium 4 Processor
First Edition - December 2000
iii
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 ..................................................................... 1-1
1.2
MODEL NUMBERING CONVENTION ................................................................................... 1-1
1.3
NOTATIONAL CONVENTIONS .............................................................................................. 1-2
1.3.1
VALUES ............................................................................................................................. 1-2
1.3.2
RANGES ............................................................................................................................. 1-2
1.3.3
SIGNAL LABELS............................................................................................................... 1-2
1.3.4
REGISTER NOTATION AND USAGE............................................................................. 1-2
1.3.5
BIT NOTATION ................................................................................................................. 1-2
1.4
COMMON ACRONYMS AND ABBREVIATIONS ................................................................. 1-3
CHAPTER 2 SYSTEM OVERVIEW..........................................................................................................
2.1
INTRODUCTION ....................................................................................................................... 2-1
2.2
FEATURES AND OPTIONS...................................................................................................... 2-2
2.2.1
STANDARD FEATURES................................................................................................... 2-2
2.2.2
OPTIONS ............................................................................................................................ 2-3
2.3
MECHANICAL DESIGN ........................................................................................................... 2-4
2.3.1
CABINET LAYOUTS ........................................................................................................ 2-4
2.3.2
CHASSIS LAYOUT............................................................................................................ 2-6
2.3.3
BOARD LAYOUT .............................................................................................................. 2-7
2.4
SYSTEM ARCHITECTURE ...................................................................................................... 2-8
2.4.1
PENTIUM 4 PROCESSOR............................................................................................... 2-10
2.4.2
CHIPSET ........................................................................................................................... 2-11
2.4.3
SUPPORT COMPONENTS.............................................................................................. 2-11
2.4.4
SYSTEM MEMORY......................................................................................................... 2-12
2.4.5
MASS STORAGE ............................................................................................................. 2-12
2.4.6
SERIAL, PARALLEL INTERFACES .............................................................................. 2-12
2.4.7
UNIVERSAL SERIAL BUS INTERFACE ...................................................................... 2-12
2.4.8
GRAPHICS SUBSYSTEM ............................................................................................... 2-13
2.4.9
AUDIO SUBSYSTEM ...................................................................................................... 2-14
2.5
SPECIFICATIONS ................................................................................................................... 2-14
CHAPTER 3 PROCESSOR/MEMORY SUBSYSTEM ............................................................................
3.1
INTRODUCTION ....................................................................................................................... 3-1
3.2
PENTIUM 4 PROCESSOR......................................................................................................... 3-2
3.2.1
PROCESSOR OVERVIEW ................................................................................................ 3-2
3.2.2
PROCESSOR UPGRADING .............................................................................................. 3-4
3.3
MEMORY SUBSYSTEM........................................................................................................... 3-5
3.3.1
RAMBUS ATTRIBUTES ................................................................................................... 3-6
3.3.2
RAMBUS CHANNEL TRANSACTIONS ......................................................................... 3-7
3.3.3
RDRAM POWER MANAGEMENT .................................................................................. 3-8
3.3.4
RDRAM CONFIGURATION/CONTROL ......................................................................... 3-8
3.4
SUBSYSTEM CONFIGURATION .......................................................................................... 3-10
