Dell D31M Owner's Manual page 55

Steps
1. Align the tabs on the bracket with the slots on the hard drive and place the hard drive into the hard drive bracket.
2. Snap the hard drive into the hard drive bracket.
Next steps
1. Install the 3.5-inch hard drive
2. Install the side cover.
3. Follow the procedure in
Installing the 3.5-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 3.5-inch hard drive and provides a visual representation of the installation
procedure.
assembly.
after working inside your computer.
Removing and installing Customer Replaceable Units (CRUs) 55