Sony PCG-TR5MP Hardware Manual page 114

Hardware Guide
9 Lift the keyboard from the LCD display side and gently turn it over the touchpad. Be careful not to detach the cable when lifting
the keyboard.
10 Touch a metal object (such as the connector panel on the back of your computer) to discharge static electricity.
11 Remove the memory module:
❑
Pull the tabs in the direction of the arrows.
The memory module is released.
❑
Pull the memory module in the direction of the arrow.
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Upgrading your VAIO computer