Dell 9478N Owner's Manual page 42

2. Remove the screw (#6-32) that secures the hard drive carrier to the chassis.
3. Remove the four screws (M3x3.5) that secure the hard drive to the hard-drive carrier.
4. Slide and lift the 2.5-inch hard drive off the hard-drive carrier.
NOTE: Note the orientation or the SATA connector marking on the hard-drive carrier so that you can replace it
correctly.
Installing the 2.5-inch hard drive
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the 2.5-inch hard drive and provides a visual representation of the installation
procedure.
42 Rimozione e installazione delle unità sostituibili dal cliente (CRU)