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NOTE: You must route the cable properly to prevent it from being pinched or crimped.
10. Install the system cover.
11. Reconnect the system to its electrical outlet and turn the system on, including any attached
peripherals.
12. If applicable, install the front bezel.
System board
Removing system board
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 came with the product.
CAUTION: If you are using the Trusted Program 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
HDDs or SSDs.
1. Turn off the system, including any attached peripherals, and disconnect the system from the
electrical outlet.
2. If installed, remove the front bezel.
3. Remove the system cover.
4. Remove the following:
a. cooling shroud
b. cooling fan assembly
c. PSUs
d. all expansion-card risers
e. PCIe card holder
f. cable retention bracket
g. support bracket (if present)
NOTE: The support bracket is present on certain system configurations for protection
during shipping and can be discarded after removal.
CAUTION: To avoid damaging the mini SAS cable and connector, follow the correct
procedure when removing the mini SAS cable from the system board.
5. Disconnect the mini SAS cable from the system board:
a. Push the mini SAS cable connector to slide it further into the connector (J_SASX8) on the system
board.
b. Press down and hold the metal tab on the mini SAS cable connector.
c. Pull the mini SAS cable out of the connector on the system board.
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