IBM PC 300PL User Manual download pdf (Page 12)

Chapter 2. System board features

This section includes information about system board features. For an illustration of the system board,

see “System board, Types 6584 and 6594” on page 13.

Pentium III microprocessor with MMX technology

PC 300PL Types 6584 and 6594 come with an Intel Pentium III microprocessor. The microprocessor,

which has an attached heat sink, plugs directly into a connector on the system board.

Features

The features of this microprocessor are as follows:

 Optimization for 32-bit software

 64-bit microprocessor data bus

 133 MHz front side bus (FSB)

 256 KB L2 cache integrated into the microprocessor

 32-bit microprocessor address bus

 Math coprocessor

 MMX technology, which boosts the processing of graphic, video, and audio data

 Cache speed is half of processor core speed

– 4-way set associative

– Nonblocking

L2 cache

The Pentium III microprocessor provides 256 KB L2 cache. The L2 cache ECC function is automatically

enabled if ECC memory is installed. If non-ECC memory is installed, the L2 cache ECC is disabled. (For

information on overriding the ECC memory settings, see the chapter about the Configuration/Setup Utility

program, in

PC 300PL User Guide

.) More information on this microprocessor is available at

http://www.intel.com on the World Wide Web.

Chip set control

The Intel 820 chip set is the interface between the microprocessor and the following:

 Memory subsystem

 PCI bus

 IDE bus master connection

 High-performance, PCI-to-ISA bridge

 USB ports

 SMBus

 Enhanced DMA controller

 Real-time clock (RTC)

4  Copyright IBM Corp. September 1999

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IBM PC 300PL User Manual Page 12