Sony VGN-SR490DDB - Manual (Page 137)

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Upgrading Your VAIO Computer >
Adding and Removing Memory
7 Remove the currently installed memory module as follows:
❑ Pull the latches in the direction of the arrows (1).
The memory module is released.
❑ Make sure that the memory module tilts up and then pull it out in the direction of the arrow (2).
8 Remove the new memory module from its packaging.