Toshiba M40 - Manual (Page 147)

4.1 General 4 Replacement Procedures
4. Spread out the two memories lock stoppers so that the memory module can be raised.
5. Pull the memory module up and out at an angle, using care to the connectors.
Figure 4-5 Removing the optional memory
EQUIUM M40/M45 / Satellite M40/M45 Maintenance Manual 4-13