Toshiba Satellite A110 Series Resource Manual page 33

Static electricity can damage the memory module. Before you handle
the module, touch a grounded metal surface to discharge any static
electricity you may have built up.
Avoid touching the connector on the memory module or on the
computer. Grease or dust on the connector may cause memory
access problems.
9 Carefully remove the new memory module from its
antistatic packaging, without touching its connector.
10 Locate an empty memory slot.
If no memory slot is available, you must remove a module by
performing steps 2-3 of "Removing a memory module" on page 35.
11 Pick up the memory module by its sides, avoiding any
contact with its connector. Position the module toward
the socket, aligning the connector's notch with the
matching key in the socket.
notch
latch
key
(Sample Illustration) Aligning the memory module with the socket
Setting up your computer and getting started
connector
latch
33