Xerox WorkCentre PE120-120i-3124 - Manual (Page 265)

Installing Machine Options D.5
D
Removing a Memory DIMM
1 Follow steps 1 through 2 on page D.2 to access the control
board.
2 Push the latches at both ends of the DIMM slot away from
the DIMM. Pull out the DIMM.
3 Place the DIMM in its original packaging or wrap it with a
sheet of thin metal, such as aluminium foil, and store it in a
box.
4 Follow from step 7 on page D.4.