Owners Manual

3 Rotate the rubber cap clockwise to x it over the captive screws.
4 Insert the mating connector into the power supply.
System board
A system board (also known as the motherboard) is the main printed circuit board in the system with dierent connectors used to connect
dierent components or peripherals of the
system. A system board provides the electrical connections to the components in the system to
communicate.
NOTE: After the system board is replaced, you must update the system with the latest available BIOS and iDRAC versions. For
more information, go to Dell.com/XCSeriesmanuals.
Removing the 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 hard 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 specic 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 Safety instructions.
2 Follow the procedure listed in Before working inside your system.
3 Remove the following:
a Air shroud
b Power supply unit(s)
c All expansion card risers
d Integrated storage controller card
e vFlash/IDSDM module
f USB 3.0 module (if installed)
g Processors and heat sink modules
h Processors and memory blanks (if applicable)
CAUTION
: To prevent damage to the processor pins when replacing a faulty system board, ensure that you cover the
processor socket with the processor protective cap.
i Memory modules and memory module blanks
j Network daughter card
Steps
1 Disconnect all cables from the system board.
CAUTION
: Take care not to damage the system identication button while removing the system board from the chassis.
CAUTION: Do not lift the system board by holding a memory module, processor, or other components.
2 Holding the system board holder, loosen the release pin, slightly lift the system board, and then slide it toward the front of the chassis.
Sliding the system board toward the front of the chassis disengages the connectors from the back of the chassis slots.
3 Lift the system board out of the chassis.
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Installing and removing system components