Technical information

Contents
Introduction...............................................................................................................................................................................................................1 –1
Manual Features..............................................................................................................................................................................................1 –1
Package Contents...........................................................................................................................................................................................1 –2
Feature Summary...........................................................................................................................................................................................1 –2
Static Electric Discharge Precautions...........................................................................................................................................1 –4
Hardware Configuration.....................................................................................................................................................................................2 –1
Configuration Quick Reference ................................................................................................................................................................2 –1
CPU Configuration & Installation ..................................................................................................................................................2 –1
CPU Voltage.....................................................................................................................................................................................2 –1
External Clock Frequency & External Clock Factor....................................................................................................2 –3
DRAM Installation ..................................................................................................................................................................................2 –7
DIMM Voltage Settings..............................................................................................................................................................2 –8
Onboard Connectors......................................................................................................................................................................................2 –9
Drive Controller & I/O Port Connectors....................................................................................................................................2 –9
System Enclosure Connectors ......................................................................................................................................................2 –12
Other Connectors.................................................................................................................................................................................2 –14
Power Input Connector ...........................................................................................................................................................2 –14
Keyboard & PS/2 Mouse Connectors...........................................................................................................................2 –14
IDE Activity LED Connector....................................................................................................................................................2 –14
CPU Fan Power Connector....................................................................................................................................................2 –14
PR5 Hardware Configuration.................................................................................................................................................................2 –16
CPU Options & Installation............................................................................................................................................................2 –16
Related Terminology.................................................................................................................................................................2 –16
CPU Settings.................................................................................................................................................................................2 –18
System Memory Configuration ...................................................................................................................................................2 –26
DIMM Voltage Settings...........................................................................................................................................................2 –29
Installing Memory Modules...........................................................................................................................................................2 –30
Level 2 Cache Options .....................................................................................................................................................................2 –32
Onboard Connectors...................................................................................................................................................................................2 –33
Disk Drive Controller & I/O Port Connectors ......................................................................................................................2 –33
System Enclosure Connectors ......................................................................................................................................................2 –35
Other Connectors.................................................................................................................................................................................2 –35
Power Input Connector ...........................................................................................................................................................2 –35
Keyboard & PS/2 Mouse Connectors...........................................................................................................................2 –35
IDE Activity LED Connector....................................................................................................................................................2 –37
CPU Fan Power Connector....................................................................................................................................................2 –37
DIP Switch & Jumper Summary.................................................................................................................................................2 –38
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