Technical Reference Guide
Compaq Deskpro 4000 and 6000 Personal Computers
featuring the Pentium II Processor
First Edition–- October 1997
4-1
Chapter 4
SYSTEM SUPPORT
4.
Chapter 4 SYSTEM SUPPORT
4.1
INTRODUCTION
This chapter covers subjects dealing with basic system architecture and covers the following
topics:
♦ PCI bus overview (4.2) page 4-2
♦ AGP bus overview (4.3) page 4-11
♦ ISA bus overview (4.4) page 4-13
♦ System clock distribution (4.5) page 4-25
♦ Real-time clock and configuration memory (4.6) page 4-26
♦ I/O map and register accessing (4.7) page 4-43
♦ System management (4.8) page 4-46
This chapter covers functions provided by off-the-shelf chipsets and therefore describes only basic
aspects of these functions as well as information unique to the Compaq Deskpro 4000/6000
Personal Computers. For detailed information on specific components, refer to the applicable
manufacturer’s documentation.
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