Dell EMC PowerEdge R940 Installation And Service Manual page 6

Network daughter card..................................................................................................................................................127
Removing the NDC...................................................................................................................................................127
Installing the NDC.....................................................................................................................................................128
Storage controller card.................................................................................................................................................. 128
Removing the storage controller card....................................................................................................................129
Installing the storage controller card......................................................................................................................130
IDSDM/vFlash card (optional).......................................................................................................................................131
Removing the micro SD card................................................................................................................................... 131
Installing the micro SD card..................................................................................................................................... 131
Removing the optional IDSDM/vFlash card...........................................................................................................131
Installing the optional IDSDM/vFlash card............................................................................................................ 132
Power supply unit........................................................................................................................................................... 133
Hot spare feature......................................................................................................................................................134
Removing a power supply unit blank......................................................................................................................134
Installing a power supply unit blank........................................................................................................................ 135
Removing a power supply unit................................................................................................................................135
Installing a power supply unit.................................................................................................................................. 136
Wiring instructions for a DC power supply unit.................................................................................................... 137
System battery............................................................................................................................................................... 139
Replacing system battery........................................................................................................................................ 139
Internal USB memory key (optional)............................................................................................................................ 140
Replacing optional internal USB memory key....................................................................................................... 140
System board...................................................................................................................................................................141
Removing the system board.................................................................................................................................... 141
Installing the system board......................................................................................................................................142
Trusted Platform Module...............................................................................................................................................145
Replacing the Trusted Platform Module................................................................................................................145
Initializing TPM for BitLocker users........................................................................................................................146
Initializing the TPM 1.2 for TXT users.................................................................................................................... 146
Initializing the TPM 2.0 for TXT users................................................................................................................... 146
Control panel................................................................................................................................................................... 146
Removing the right control panel........................................................................................................................... 147
Installing the right control panel..............................................................................................................................148
Removing the left control panel............................................................................................................................. 149
Installing the left control panel................................................................................................................................150
7 Using system diagnostics........................................................................................................................... 152
Dell Embedded System Diagnostics.............................................................................................................................152
Running the Embedded System Diagnostics from Boot Manager.....................................................................152
Running the Embedded System Diagnostics from the Dell Lifecycle Controller.............................................. 152
System diagnostic controls..................................................................................................................................... 153
8 Jumpers and connectors ........................................................................................................................... 154
System board jumpers and connectors....................................................................................................................... 155
System board jumper settings...................................................................................................................................... 158
Disabling forgotten password........................................................................................................................................158
6 Contents