Dell Precision 7920 Owner's Manual page 42

2. Remove the screws that secures 2.5 inch hard drive to the hard drive assembly and remove the hard drive.
Next steps
Install hard drive into the hard drive carrier.
Installing 2.5 inch hard drive into 3.5 inch hard drive carrier
Steps
1. Insert the 2.5 inch hard drive into the hard drive carrier and tighten the screws.
42 Disassembly and reassembly