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Installing the control panel
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.
1. If installed, remove the front bezel.
2. Turn off the system, including any attached peripherals, and disconnect the system from the
electrical outlet and peripherals.
3. Remove the system cover.
4. Fold the label around the cable.
5. Fold the pull tab close to the connector and guide the connector and pull tab into the channel.
6. Push the cable until the cable passes completely through the channel.
7. Tighten the three Torx screws to secure the control panel to the chassis.
NOTE: You must route the cable properly to prevent it from being pinched or crimped.
8. Connect the cable connector on the backplane by pushing on the center of the connector.
9. Install the system cover.
10. Reconnect the system to its electrical outlet and turn the system on, including any attached
peripherals.
11. If applicable, install the front bezel.
Removing I/O panel
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.
1. If installed, remove the front bezel.
2. Turn off the system, including any attached peripherals, and disconnect the system from the
electrical outlet and peripherals.
3. Remove the system cover.
CAUTION: To prevent damage to the I/O cable, you must release the locking tab before
removing or installing the I/O cable from the connector on the HDD or SSD backplane.
4. Rotate the locking tab on the I/O cable connector clockwise 90 degrees to release the lock.
5. Disconnect the I/O cable from the backplane.
6. Remove the three Torx screws securing the I/O panel to the chassis.
7. Pull out the I/O panel cable through the channel on the chassis.
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