1. Holding the blue tabs, align the slots on the hard-drive backplane with the tabs on the chassis.2. Slide down the hard-drive backplane until the release tabs snaps into place.3. Attach the SAS A cable to the SAS A connector on the hard-drive backplane and the SAS B cable to the SAS Bconnector.4. Connect the power cable(s) to the hard-drive backplane.5. Route the power/data cables along the chassis wall.6. Install the hard drives in their original locations.7. Close the system.8. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.9. If applicable, install the front bezel.Control Panel AssemblyRemoving The Control Panel Board—8 Hard Drive SystemCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. 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 andperipherals.3. Open the system.CAUTION: The display module connector is a ZIF (zero insertion force) connector. Ensure that the locking tab onthe connector is released before removal and insertion. The locking tab must be engaged after insertion.4. Disconnect the control panel and display module cables from the control panel board.5. Using a #2 Phillips screwdriver, remove the two screws that secure the control panel board to the chassis.6. Slide the control panel board toward the back and out of the system.87