LG LS50 User Manual page 103

Note:
Before removing the cover, shut down your computer, remove AC adapter and
battery pack, and detach any device or cable that are attached to the computer.
Use the notch on the memory to make sure the memory aligns with the socket, and
then inserts the memory into the socket at an angle of approximately 30 degrees.
Note:
Push down the memory until the latch firmly secures the memory on the socket.
Push down the memory until you hear a click.
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