Dell Vostro 2521 (Early 2013) - Manual (Page 13)

Installing the Hard-Drive Assembly
1. Align the hard drive on the hard-drive bracket and snap it into place.
2. Tighten the screws to secure the hard drive to the hard-drive bracket.
3. Slide the hard-drive assembly in its slot in the computer.
4. Replace the screws to secure the hard-drive assembly to the computer.
5. Install:
a) memory module
b) access panel
c) battery
6. Follow the procedures in After Working Inside Your Computer .
Removing the Optical-Drive Assembly
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the battery.
3. Remove the screw that secures the optical drive and slide it out of the drive bay.
4. Remove the screws that secure the optical-drive bracket to the optical-drive assembly.
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