Installing System Components 85

Installing the Backplane 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 cover ed by your
warranty. Read and follow the safety instructions that came with the product.
1
Replace the backplane board:
– If you are installing a 3.5-inch h ard driv e (two-drive) backplane, fit the boa rd onto the securing tabs,
press the release latch at the left end of the board and slide the board to its left. See Figure 3-23.
– If you are installing a 2.5-inch h ard driv e (four-d rive) backplane, fit the board onto the sec uring tabs
on the back of the drive cage and slide the board downwards until the release latch at each end of the
backplane clicks into place. See Figure 6-4.
2
Connect the SAS cable and power cable to the backplane connecto rs.
3
Reinstall the hard drives.
NOTE: Reinstall the hard drives in the same drive bays from which they were removed.
4
Close the system.
5
If applicable, replace the bezel.

Sideplane Board

Removing the Sideplane 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 cover ed by your
warranty. Read and follow the safety instructions that came with the product.
1
If applicable, remove the bezel. See "Removing and Replacing the Front Bezel" on page 45.
2
Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3
Open the system. See "Opening and Closing the System" on pag e 46.
4
Remove the SAS controller daughter card. See "Removing a SAS C ontr oller Daughter Card" on page 56.
5
Disconnect the contro l pane l cable and optical drive cable (if applicable) from the sideplane. See
Figure 6-8.
6
Press inward on the two sideplane release latches marked in blue and lift the sideplane up and away from
the system board.