NEC VERSA SX User Manual page 97

If you are replacing a SO-DIMM and need to remove one that is
already installed, do so as follows:
T
Press the locking tabs away from the sides of the SO-DIMM and
hold while gently lifting on the edge of the SO-DIMM.
T
When the edge of the SO-DIMM pops up and is at
approximately a 60 degree angle, pull the SO-DIMM from the
socket.
4-22 Using the Hardware
Installing the SO-DIMM