Installing The Hard-Drive BackplaneCAUTION: 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. Align the slots on the hard-drive backplane with the hooks on the chassis.2. Slide down the hard-drive backplane until the release pins align with the slots on the chassis and click into place.3. Connect the power cables to the hard-drive backplane.4. Route the power cables along the chassis base.5. If applicable, connect the power/data cable to the optical drive.6. Reinstall the backplane expander board.7. Reinstall the cooling-fan assembly.8. Reinstall the cooling shroud.9. Install the hard drives in their original locations.10. Close the system.11. If applicable, place the system upright and on its feet on a flat, stable surface.12. If removed, reinstall the hard drives, server modules, and power supplies.13. Reconnect the enclosure to its electrical outlet and turn the enclosure on, including any attached peripherals.14. Turn on the server modules using the operating system commands or the CMC.15. If applicable, install the front bezel.Power Distribution BoardRemoving The Power Distribution BoardCAUTION: 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 server modules using the operating system commands or the CMC.3. Turn off the enclosure, including any attached peripherals, and disconnect the enclosure from the electrical outletand peripherals.4. To reduce the chassis weight, remove the following (if required):a) hard drivesb) server modules5. Remove the power supplies.6. If applicable, rotate the system feet inward and lay the system on its side on a flat stable surface, with the coverrelease latch side on top.7. Open the system.8. Loosen the spring-loaded screw securing the power distribution board (PDB) bracket to the power supply cage.9. Holding the handle, lift the PDB bracket upward and away from the chassis.102
