Dell OptiPlex GX1 Reference And Installation Manual page 21

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Dell OptiPlex GX1 and GX1p mini tower Managed PC systems are high-speed,
expandable personal computers designed around the Intel
sor. Each computer system uses a high-performance Peripheral Component
Interconnect (PCI) design that allows you to configure the computer system to your
initial requirements and then add Dell-supported upgrades as necessary. These sys-
tems also support the Industry-Standard Architecture (ISA) bus for older expansion
devices.
This chapter describes the major hardware and software features of your system, pro-
vides information about accessing the online documentation, and tells you where to
find help if you need it.
Your system offers the following features:
An Intel Pentium II microprocessor that runs at one of the following speeds:
— An internal speed of 266 or 333 megahertz (MHz) and an external speed of
66 MHz
— An internal speed of 350, 400, or 450 MHz and an external speed of
100 MHz
The Intel Pentium II microprocessor includes MMX
handle complex multimedia and communications software. This microprocessor
incorporates new instructions and data types as well as a technique called single
instruction, multiple data (SIMD) that allows the microprocessor to process multi-
ple data elements in parallel, thereby improving overall system performance.
The Pentium II microprocessor has a 16-kilobyte (KB) internal data cache and a
16-KB internal instruction cache, an internal math coprocessor, and other
advanced internal logic.
A keyboard command (<Ctrl><Alt><\>) that lets you switch between the micro-
processor's rated speed and a slower compatibility speed.
NOTE: This keyboard command is not available under the Microsoft
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Windows NT and IBM
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OS/2 operating systems.
Pentium II microproces-
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technology designed to
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Introduction 1-1