4Remove the memory DIMM from its antistatic package. Locate the alignment notches on the bottom edge of each DIMM.
Notches
B
Connection points
5Holding the memory DIMM by the edges, align the notches on the memory DIMM with the grooves at the top of the memory DIMM slot.
Groove
Notch
6Push 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.
Notch
Latch
INSTALLING MACHINE OPTIONS B.3