Removing The System Board - Dell DR4300 Owner's Manual

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Removing the system board

Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that are shipped with your product.
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 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 the Safety instructions section.
2. Follow the procedure listed in the Before working inside your system section.
3. Remove the following:
a. Cooling shroud
b. Cooling fan assembly
c. Power supply unit(s)
d. All expansion card risers
e. Integrated storage controller card
f. Internal dual SD module
g. Internal USB key (if installed)
h. PCIe card holder
i. Cable retention bracket
j. Heat sink(s)/heat sink blank(s)
k. Processors(s)/processor blank(s)
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.
l. Memory modules and memory module blanks
m. 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 chassis.
CAUTION: Do not lift the system board by holding a memory module, processor, or other
components.
2. Hold the system board holder, lift the blue release pin, lift the system board, and then slide it toward
the front of the chassis.
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