Dell Precision 5820 Tower Owner's Manual page 27

3. To remove the 3.5 inch HDD:
a. Expand one side of the carrier.
b. Lift the hard drive out of the carrier.
4. To remove the 2.5 inch HDD:
a. Expand two sides of the carrier.
b. Lift the hard drive out of the carrier.
Removing and installing components 27