Contents
iv
HP Servers Troubleshooting Guide
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