Figure 42. Cabling Diagram—3.5 Inch (x12) SAS/SATA Backplane1. cable retention bracket2. system board3. integrated storage controller card4. SAS connector on the system board5. SAS backplaneInstalling 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. Use the hooks at the base of the chassis as guides to align the hard-drive backplane.2. Slide down the hard-drive backplane until the release tabs snap into place.3. Connect the SAS/SATA/SSD data, signal, and power cable(s) to the backplane.4. Replace the cooling-fan assembly.5. Replace the cooling shroud.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.82
