Completely open the latches on each side of the DIMM slot and remove the preinstalled memory
Remove a new memory DIMM from its antistatic package.
Holding the memory DIMM by the edges, align the notches on the memory DIMM with the grooves
at the top of the memory DIMM slot.
Push the DIMM straight into the DIMM slot until it snaps into place. Make sure the latches fit over
the notches located on either side of the DIMM.