HP 1850R - ProLiant - 128 MB RAM Troubleshooting Manual page 4

Contents
Chapter 2
Hardware Problems
Important Safety Information ..........................................................................................2-2
Symbols on Equipment .............................................................................................2-2
Rack Stability ............................................................................................................2-4
Power Problems ...............................................................................................................2-5
Power Source.............................................................................................................2-5
Power Supply ............................................................................................................2-6
System Power Module...............................................................................................2-6
Uninterruptible Power Supply...................................................................................2-7
System Short Circuit .................................................................................................2-8
Redundant Line Cord Switch ....................................................................................2-9
General Hardware Problems ..........................................................................................2-10
Loose Connections ..................................................................................................2-10
Cabling Order..........................................................................................................2-10
New Hardware.........................................................................................................2-11
General Devices ......................................................................................................2-12
Rack Environment...................................................................................................2-13
Internal System Problems ..............................................................................................2-14
Processors................................................................................................................2-14
Processor Power Modules .......................................................................................2-16
PCI or PCI-X Hot Plug............................................................................................2-17
Memory ...................................................................................................................2-17
Fans .........................................................................................................................2-20
Drive Problems ..............................................................................................................2-22
Diskette Drives ........................................................................................................2-22
CD-ROM and DVD Drives.....................................................................................2-23
Hard Drives .............................................................................................................2-24
Tape Drives .............................................................................................................2-31
External Device Problems..............................................................................................2-35
Video .......................................................................................................................2-35
Audio.......................................................................................................................2-37
Printers ....................................................................................................................2-37
Mouse and Keyboard...............................................................................................2-38
Diagnostic Adapter..................................................................................................2-39
Integrated Management Display .............................................................................2-40
Hot-Plug Management Module ...............................................................................2-40
iv HP Servers Troubleshooting Guide