Be sure to read and follow the safety guidelines to protect your computer from potential damage and ensure your personal safety For more information about safety guidelines, see the owner’s manual at: Dell.com/Support. Before you begin, turn off the computer and disconnect all the attached peripherals.
To remove the rear IO cover, loosen the four screws on the sides of the base cover. Remove the two screws at the rear of the base cover and pry the cover off the system to remove it. Identify the rear cover and remove the two screws. Slide the cover off the system.
To reinstall the rear IO cover, slide it back on the system and tighten the two screws. Place the base cover back on the system and secure it with the six total screws. For more information about your Dell system, visit: Dell.com/Support.