To remove the memory module, remove the 6 screws securing the base cover and the 2 screws by the hinges. Pry the cover off from the recess points near the hinges. Identify and unlatch the memory module. Grasp the module by the edges to remove it from the system.
To reinstall the memory module, place it back in the system and relatch it. Place the base cover back on the system and secure it with the screws.