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Table of Contents
Chapter 4. Assembly Access
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-1
General Safety Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-2
Electrostatic Discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-2
Case Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-4
HP 9030 (System II Enclosure) .............................................. 4-4
HP 9040 (Stand-Alone Cabinet) ............................................. 4-4
Replaceable Assemblies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-5
I/O Cards ................................................................. 4-5
System Control Module (SCM) .............................................. 4-6
Power Supply Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-6
Processor Stack Boards ..................................................... 4-8
Processor Stack Clock Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-8
Processor Stack Motherboard ............................................... 4-9
Ac Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-11
Line Filter .............................................................. " 4-12
Power Switch Assembly ................................................. " 4-13
Power Supply Cable .................................................... " 4-13
Service Panel Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-14
Service Panel Cable .................................................... " 4-14
Processor Stack Fan .................................................... " 4-15
Power Supply Fan ...................................................... " 4-16
I/O Fan ................................................................. 4-16
Processor Stack Fan Cable ............................................... " 4-16
Power Supply and I/O Fan Cable ......................................... " 4-17
I/O Backplane ......................................................... " 4-1 7
Motherboard .......................................................... " 4-18
lOP Cable ............................................................. " 4-18
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