To remove the memory module on a Latitude 5440, identify the module highlighted in blue. Carefully spread apart the securing clips on each end with your fingers, hold the edges, and carefully lift the memory module from the system board's connector.
To reinstall the memory module, identify the module location highlighted in blue. Align the notch on the memory module with the tab on the slot and slide the memory into the slot at an angle. Press the module down until it clicks into place.