System Board - Dell EMC PowerEdge R740 Installation And Service Manual

3 Rotate the rubber cap clockwise to fix it over the captive screws.
4 Insert the mating connector into the power supply.

System board

Removing system board
Prerequisites
CAUTION: If you are using the Trusted Platform Module (TPM) with an encryption key, you may be prompted to create a
recovery key during program or System Setup. Be sure to create and safely store this recovery key. If you replace this system
board, you must supply the recovery key when you restart your system or program before you can access the encrypted data on
your drives.
CAUTION: Do not attempt to remove the TPM plug-in module from the system board. Once the TPM plug-in module is installed,
it is cryptographically bound to that specific system board. Any attempt to remove an installed TPM plug-in module breaks the
cryptographic binding, and it cannot be re-installed or installed on another system board.
1 Follow the safety guidelines listed in
2 Follow the procedure listed in
3 Remove the following:
a Air shroud
b Cooling fan assembly
c Power supply units
d Expansion cards and expansion card risers
e Integrated storage controller card
f Optional IDSDM or vFlash card
g Optional internal USB memory key
h USB 3.0 module
i Processor and heat sink module
j Processor blank (if installed)
CAUTION: To prevent damage to the processor socket when replacing a faulty system board, ensure that you cover
the processor socket with the processor dust cover.
k Memory modules
l Network daughter card
Steps
1 Disconnect all cables from the system board.
CAUTION: Take care not to damage the system identification button while removing the system board from the system.
CAUTION: Do not lift the system board by holding a memory module, processor, or other components.
2 Holding the system board holder, pull the blue release pin, and slide the system board toward the front of the system to disengage the
connectors from the slots on the system.
3 Incline the system board at an angle, and lift the system board out of the system.
Safety instructions.
Before working inside your
(if installed)
(if installed)
and memory module blanks
system.
Installing and removing system components 175