
Removing the power supply unit blank..................................................................................................................128
Installing the power supply unit blank.................................................................................................................... 129
Removing an AC power supply unit....................................................................................................................... 130
Installing an AC power supply unit...........................................................................................................................131
Non-redundant AC power supply unit (cabled)....................................................................................................132
Wiring instructions for a DC power supply unit.................................................................................................... 136
Removing a DC power supply unit......................................................................................................................... 139
Installing a DC power supply unit............................................................................................................................140
Power interposer board..................................................................................................................................................141
Removing the power interposer board...................................................................................................................141
Installing the power interposer board.....................................................................................................................143
System battery................................................................................................................................................................143
Replacing the system battery................................................................................................................................. 143
Hard drive backplane..................................................................................................................................................... 145
Removing the hard drive backplane.......................................................................................................................145
Installing the hard drive backplane......................................................................................................................... 147
Control panel...................................................................................................................................................................149
Removing the control panel board......................................................................................................................... 149
Installing the control panel board............................................................................................................................150
Removing the control panel..................................................................................................................................... 151
Installing the control panel.......................................................................................................................................153
System board..................................................................................................................................................................154
Removing the system board................................................................................................................................... 154
Installing the system board......................................................................................................................................156
Restoring the Service Tag by using the Easy Restore feature............................................................................158
Entering the system Service Tag by using System Setup...................................................................................159
Trusted Platform Module...............................................................................................................................................159
Installing the Trusted Platform Module..................................................................................................................159
Initializing the TPM for BitLocker users.................................................................................................................160
Initializing the TPM for TXT users..........................................................................................................................160
7 Troubleshooting your system.......................................................................................................................161
Safety rst — for you and your system.......................................................................................................................161
Troubleshooting system startup failure.........................................................................................................................161
Troubleshooting external connections......................................................................................................................... 162
Troubleshooting the video subsystem..........................................................................................................................162
Troubleshooting a USB device......................................................................................................................................162
Troubleshooting iDRAC Direct (USB XML conguration)......................................................................................... 163
Troubleshooting iDRAC Direct (Laptop connection)..................................................................................................163
Troubleshooting a serial I/O device.............................................................................................................................. 163
Troubleshooting a NIC....................................................................................................................................................164
Troubleshooting a wet system...................................................................................................................................... 164
Troubleshooting a damaged system.............................................................................................................................165
Troubleshooting the system battery............................................................................................................................ 166
Troubleshooting power supply units.............................................................................................................................166
Troubleshooting power source problems...............................................................................................................166
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