Owners Manual

Removing the 3.5 inch drive rear backplane....................................................................................................... 142
Installing the 3.5 inch drive rear backplane......................................................................................................... 142
Removing the 2.5 inch drive rear backplane....................................................................................................... 143
Installing the 2.5 inch drive rear backplane......................................................................................................... 144
Cable routing.....................................................................................................................................................................145
System battery.................................................................................................................................................................155
Replacing the system battery.................................................................................................................................155
Optional internal USB memory key..............................................................................................................................156
Optional internal USB memory key details...........................................................................................................156
Replacing the optional internal USB memory key.............................................................................................. 156
Power supply units.......................................................................................................................................................... 157
Power supply unit details......................................................................................................................................... 157
Hot spare feature.......................................................................................................................................................157
Removing a power supply unit blank.....................................................................................................................158
Installing a power supply unit blank.......................................................................................................................158
Removing a power supply unit................................................................................................................................159
Installing a power supply unit..................................................................................................................................159
Wiring instructions for a DC power supply unit..................................................................................................160
System board....................................................................................................................................................................163
Removing system board...........................................................................................................................................163
Installing system board............................................................................................................................................. 165
Trusted Platform Module...............................................................................................................................................167
Upgrading the Trusted Platform Module............................................................................................................. 167
Initializing TPM for BitLocker users...................................................................................................................... 168
Initializing the TPM 1.2 for TXT users...................................................................................................................168
Initializing the TPM 2.0 for TXT users..................................................................................................................169
Control panel.....................................................................................................................................................................169
Control panel details................................................................................................................................................. 169
Removing the left control panel.............................................................................................................................169
Installing the left control panel............................................................................................................................... 170
Removing the right control panel............................................................................................................................171
Installing the right control panel.............................................................................................................................172
Chapter 5: System diagnostics...................................................................................................174
Dell Embedded System Diagnostics............................................................................................................................ 174
Running the Embedded System Diagnostics from Boot Manager................................................................. 174
Running the Embedded System Diagnostics from the Dell Lifecycle Controller........................................ 174
System diagnostic controls..................................................................................................................................... 175
Chapter 6: Jumpers and connectors .......................................................................................... 176
System board jumpers and connectors...................................................................................................................... 176
System board jumper settings...................................................................................................................................... 178
Disabling forgotten password....................................................................................................................................... 178
Chapter 7: Getting help..............................................................................................................179
Contacting Dell EMC.......................................................................................................................................................179
Documentation feedback............................................................................................................................................... 179
Accessing system information by using QRL............................................................................................................ 179
Quick Resource Locator for PowerEdge R740 and R740xd systems...........................................................180
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Contents