Chapter 2. System Board Features
Chapter 2. System Board Features
This section provides information about system board features. For an illustration of the system board,
refer to “Physical Layout” on page 19.
For a list of features provided with IntelliStation M Pro computers, refer to “Hardware Features” on
page 1.
Microprocessor
IntelliStation M Pro computers have an Intel Pentium II microprocessor with MMX technology. This is a
high-performance processor that is fully compatible with previous generations of Intel microprocessors. It
has separate core supply and I/O supply voltages. A voltage regulator on the system board converts the
3.3 V provided by the power supply to the core voltage required by the microprocessor.
The Pentium II processor with MMX technology features the following:
Optimization for 32-bit software
Operation at a lower voltage level than previous microprocessors
64-bit data bus
32-bit I/O bus
32 KB L1 cache (split into 16 KB write-through code cache and 16 KB write-back data cache)
66 Mhz bus speed
Power management features
Math coprocessor
Support for MMX technology (boosts the processing of graphic, video, and audio data)
512 KB L2 cache, operating at 1/2 of microprocessor core speed
More information on the Pentium processor with MMX technology can be found on the World Wide Web at
http://www.intel.com.
The microprocessor is packaged on a card with a 242-pin edge connector.
For information on replacing a microprocessor or installing an upgrade, refer to
Installing Options in Your
IntelliStation M Pro.
Chip Set Control
IntelliStation M Pro computers use the third-generation Intel 82440LX chip set. The primary functions of
this chipset are:
Provides a bridge between the PCI bus and the microprocessor bus (For information on the PCI bus,
see “PCI-to-ISA Bridge” on page 8.)
Provides a DRAM controller and datapath
Provides an interface for the Accelerated Graphics Port (AGP)
The 82440LX module is fully compliant with
PCI Local Bus Specification (Version 2.1).
Copyright IBM Corp. 1997
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