Installing a processor.................................................................................................................... 97
Power supplies....................................................................................................................................99
Hot Spare feature..........................................................................................................................99
Removing a redundant power supply........................................................................................100
Installing a redundant power supply...........................................................................................101
Removing a non-redundant power supply................................................................................102
Installing a non-redundant power supply..................................................................................103
Removing the power supply unit blank..................................................................................... 104
Installing the power supply unit blank....................................................................................... 104
System battery...................................................................................................................................104
Replacing the system battery..................................................................................................... 104
Hard-drive backplane....................................................................................................................... 106
Removing the hard-drive backplane..........................................................................................106
Installing the hard-drive backplane.............................................................................................113
Control-panel assembly....................................................................................................................113
Removing the control panel........................................................................................................113
Installing the control panel..........................................................................................................116
Removing the control-panel module......................................................................................... 117
Installing the control-panel module.......................................................................................... 120
Power interposer board.....................................................................................................................121
Removing the power interposer board.......................................................................................121
Installing the power interposer board........................................................................................ 122
System board.....................................................................................................................................123
Removing the system board....................................................................................................... 123
Installing the system board......................................................................................................... 125
Trusted Platform Module............................................................................................................ 127
5 Troubleshooting your system........................................................................ 129
Safety first—for you and your system...............................................................................................129
Troubleshooting system startup failure........................................................................................... 129
Troubleshooting external connections............................................................................................129
Troubleshooting the video subsystem.............................................................................................129
Troubleshooting a USB device......................................................................................................... 129
Troubleshooting a serial I/O device................................................................................................. 130
Troubleshooting a NIC..................................................................................................................... 130
Troubleshooting a wet system..........................................................................................................131
Troubleshooting a damaged system................................................................................................132
Troubleshooting the system battery................................................................................................ 132
Troubleshooting power supply units................................................................................................133
Power source problems....................................................................................................................133
Power supply unit problems.............................................................................................................133
Troubleshooting cooling problems..................................................................................................134
