Dell OptiPlex Gn - Chapter 1 System Overview

System Overview 1-1
Chapter 1
System Overview
T
he Dell
®
OptiPlex
®
Gn and Gn+, and the Dell OptiPlex Gn and Gn+ with
Enhanced Manageability (EM), are high-speed, upgradable, expandable com-
puters. (The name Dell OptiPlex Gn and Gn+ will be used to refer to both
versions, unless otherwise indicated.) They are available in three sizes: a low-
profile desktop computer, a midsize desktop computer, and a mini tower
computer. Chapters 1 through 3 and Appendix A contain information that
applies to all models of the Dell OptiPlex Gn and Gn+ computers. Chapters 4, 5,
and 6 are chassis-specific.
The Dell OptiPlex Gn and Gn+ computers use the Intel
®
Pentium
®
micro-
processor with MMX
™
technology. These Dell computers incorporate the
high-performance PCI local bus as well as the ISA expansion bus. These buses
are built into the system board, which also integrates the microprocessor, mem-
ory controller, hard-disk drive controller, video controller, and other elements of
the basic computer.
The microprocessor for the OptiPlex Gn and Gn+ computers is installed in a
type 7 ZIF socket, which allows the computer to be upgraded when faster
microprocessors become available.
The Pentium microprocessor contains a built-in clock multiplier circuit, which
increases the internal operating frequency to a multiple of the system clock fre-
quency, which is 66 MHz.
The microprocessors for each of these computers and their operating frequen-
cies are as follows:
•
Dell OptiPlex Gn and Gn+ 166 computers — 166-MHz Pentium micropro-
cessor with MMX technology
•
Dell OptiPlex Gn and Gn+ 200 computers — 200-MHz Pentium micropro-
cessor with MMX technology
•
Dell OptiPlex Gn and Gn+ 233 computers — 233-MHz Pentium micropro-
cessor with MMX technology