HP XW8400

Installing a hard drive In the fifth hard drive bay ............................................... 85
Processor heatsink ........................................................................................................... 86
Removing the CPU heatsink ............................................................................. 86
Replacing the CPU heatsink ............................................................................. 88
Processor .......................................................................................................................... 89
Removing the processor ................................................................................... 89
Replacing the processor ................................................................................... 91
System board ..................................................................................................................... 92
Removing the system board ............................................................................. 92
Replacing the System Board: ............................................................................ 93
5 System diagnostics and troubleshooting
E-Support ........................................................................................................................................... 96
Help and support center and E-Support ............................................................................ 96
Troubleshooting checklist ................................................................................................................... 97
LED color definitions ......................................................................................................................... 98
HP Insight Diagnostics Offline Edition ................................................................................................ 99
Key features and benefits .................................................................................................. 99
Theory of operation ............................................................................................................ 99
Starting the diagnostic utility from CD ................................................................................ 99
Download the ISO image ................................................................................................. 100
User interface .................................................................................................................. 100
Navigation ....................................................................................................... 100
Survey tab ....................................................................................................... 100
Test tab ........................................................................................................... 101
Status tab ......................................................................................................................... 102
Log tab ............................................................................................................................. 102
Help tab ........................................................................................................................... 102
Diagnostic error codes ..................................................................................................................... 104
Diagnostic light codes ...................................................................................................... 104
Troubleshooting scenarios and solutions ......................................................................................... 106
Solving minor problems .................................................................................................. 106
Solving power supply problems ....................................................................................... 107
Testing power supply ...................................................................................... 107
Solving diskette problems ............................................................................................... 109
Solving hard drive problems ............................................................................................ 111
Solving display problems ................................................................................................ 112
Solving audio problems .................................................................................................. 113
Solving printer problems .................................................................................................. 115
Solving keyboard and mouse problems ........................................................................... 115
Solving front panel component problems ........................................................................ 116
Solving hardware installation problems ........................................................................... 117
Solving network problems ............................................................................................... 118
Solving memory problems .............................................................................................. 119
Solving processor problems ........................................................................................... 120
Solving CD-ROM and DVD problems ............................................................................. 120
Solving Internet access problems ................................................................................... 121
POST error messages ...................................................................................................................... 123
Appendix A Appendix A — SAS devices
vi ENWW