To remove the memory module, identify and unlatch the base cover to remove it. Then unlatch and remove the front bezel. Find and unlatch the hard drive from the system. Grasp the cables at the connector base and disconnect them. Lift the assembly up to remove it. Identify the memory module and unlatch it. Grasp the module by the edges to remove it.
To reinstall the memory module, place it back into the system and relatch it. Place the assembly back in the system. Reconnect the cables and relatch the assembly. Place the front bezel and base cover back on the system.