When aligned correctly, the back of the hard drive is flush with the back of the hard drive carrier.Hard drive backplaneDepending on your system configuration:2.5 inch (x16) SAS/SATA backplane or2.5 inch (x8) SAS/SATA backplane or3.5 inch (x8) SAS/SATA backplaneRemoving the hard drive backplanePrerequisites1. Ensure that you read the Safety instructions.2. Follow the procedure listed in Before working inside your system.3. Remove the cooling shroud.4. Remove the cooling fan assembly.5. Remove all hard drives.CAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.CAUTION: To prevent damage to the drives and backplane, remove the hard drives from thesystem before removing the backplane.CAUTION: Note the number of each hard drive and temporarily label them before you removethe hard drive so that you can replace them in the same locations.Steps1. Disconnect the SAS/SATA data, signal, and power cable(s) from the backplane.2. Press the release tabs and lift the backplane upward and slide it toward the back of the chassis.128
