You can now access the RAM slots and other slots. The Modular Mac Lift the monitor off the top of your Mac if it normally sits there, and set it aside. Remove 1 or 2 silver phillips screws which may be holding the cover in place. Facing the front of your Mac, drape your forearms over the top and grasp the two cover retainer clips and unclip them with a lifting motion. Tilt the top up and remove it.
Installation is the reverse of the removal process.
Some Macs have a single large flat-head screw holding the the cover on, unscrew this noting that it usually does not come out completely. Slide the cover foreward and lift it off to remove it. Installation is the reverse of the removal process. Squeeze these upward and slide the case toward the front and lift it off. Installation is the reverse of the removal process.