4-10 Adding Expansion Devices7. Locate an empty module slot. If you need to remove one or bothmodules, see ìRemoving a SO-DIMM Moduleî in the next section.Before you install a SO-DIMM, reduce staticdischarge by touching a metal part on the system unit.8. Install the SO-DIMM module as follows (see the following figure).! Align the notch in the module with the key in the empty slot.! Hold the module at a 45-degree angle and insert it into the slot.! Firmly push the module into the socket.! Press down on the edge of the module until the plastic retainingclips snap into place.Installing the SO-DIMM moduleA ñ SO-DIMM Module C ñ Socket KeyB ñ Notch D ñ Plastic Retaining Clip (2)9. Install the SO-DIMM module panel and retaining screw.10. Plug in the AC adapter power cord and press the power switch.