Sony PCG-R505JLP - Manual (Page 89)

Installing a Memory Module
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5 Lift the keyboard from the LCD display side, then gently turn it over on the
touchpad space. Be careful not to detach the cable when lifting the keyboard.
6 You must remove the existing memory module before you can install a new
module. See “Removing a Memory Module” for instructions.
7 Touch a metal object (such as the connector panel on the back of your
notebook) to discharge any static electricity.
8 Remove the new memory module from its packaging.
9 Slide the memory module into the empty slot.
Turning the Keyboard
Cable