Installing a DC PSU......................................................................................................................103
System battery...................................................................................................................................104
Replacing system battery............................................................................................................104
Hard disk drive backplane.................................................................................................................106
Removing HDD backplane......................................................................................................... 106
Installing HDD backplane........................................................................................................... 109
Removing the optional HDD backplane (back)..........................................................................110
Installing the optional HDD backplane (back).............................................................................111
Control panel assembly.....................................................................................................................112
Removing the control panel .......................................................................................................112
Installing the control panel .........................................................................................................113
Removing the I/O panel ............................................................................................................. 114
Installing the I/O panel................................................................................................................ 115
System board..................................................................................................................................... 116
Removing system board..............................................................................................................116
Installing system board................................................................................................................118
Restoring the Service Tag using the Easy Restore feature........................................................ 120
Trusted Platform Module...................................................................................................................121
Installing Trusted Platform Module ............................................................................................121
Re-enabling TPM for BitLocker users.........................................................................................122
Re-enabling TPM for TXT users.................................................................................................. 122
5 Troubleshooting your system........................................................................ 123
Safety first—for you and your system...............................................................................................123
Troubleshooting system startup failure............................................................................................123
Troubleshooting external connections............................................................................................123
Troubleshooting video subsystem................................................................................................... 123
Troubleshooting USB drive...............................................................................................................123
Troubleshooting iDRAC Direct (USB XML configuration)................................................................124
Troubleshooting iDRAC Direct (laptop connection)....................................................................... 125
Troubleshooting serial I/O device.................................................................................................... 125
Troubleshooting NIC.........................................................................................................................125
Troubleshooting wet system............................................................................................................ 126
Troubleshooting damaged system...................................................................................................127
Troubleshooting system battery.......................................................................................................127
Troubleshooting power supply units............................................................................................... 128
Troubleshooting power source problems................................................................................. 128
Power supply unit problems.......................................................................................................128
Troubleshooting cooling problems..................................................................................................129
Troubleshooting cooling fans.......................................................................................................... 129
Troubleshooting system memory....................................................................................................130
Troubleshooting internal USB drive..................................................................................................131
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