Installing an optional internal SD card......................................................................................... 98
Removing the optional internal dual SD module ....................................................................... 98
Installing the optional internal dual SD module ....................................................................... 100
Heat sink and processor...................................................................................................................100
Removing the heat sink...............................................................................................................101
Removing the processor.............................................................................................................102
Installing the processor...............................................................................................................105
Installing the heat sink.................................................................................................................107
Power supply units............................................................................................................................109
Redundant AC power supply unit...............................................................................................109
Non-redundant AC power supply unit....................................................................................... 114
Power interposer board.....................................................................................................................116
Removing the power interposer board.......................................................................................116
Installing the power interposer board.........................................................................................117
System battery................................................................................................................................... 118
Replacing the system battery......................................................................................................118
Control panel assembly.................................................................................................................... 120
Removing the control panel assembly.......................................................................................120
Installing the control panel assembly.........................................................................................122
Removing the control panel assembly cover.............................................................................123
Installing the control panel assembly cover...............................................................................124
Removing the control panel board.............................................................................................125
Installing the control panel board.............................................................................................. 126
Removing the LCD module.........................................................................................................127
Installing the LCD module.......................................................................................................... 128
Removing the optional VGA module..........................................................................................129
Installing the optional VGA module............................................................................................130
System board.....................................................................................................................................130
Removing the system board.......................................................................................................130
Installing the system board.........................................................................................................134
Restoring the Service Tag by using the Easy Restore feature................................................... 135
Entering the system service tag by using System Setup............................................................135
Trusted Platform Module..................................................................................................................136
Installing the Trusted Platform Module .....................................................................................136
Re-enabling the TPM for BitLocker users...................................................................................137
Re-enabling the TPM for TXT users............................................................................................137
System top cover.............................................................................................................................. 138
Removing the system top cover.................................................................................................138
Installing the system top cover...................................................................................................139
5 Converting the system from tower mode to rack mode...........................141
Safety instructions............................................................................................................................. 141
6