Sony VAIO PCG-V505CP Hardware Manual page 80

Upgrading your VAIO computer
11 Install the memory module. Be careful not to touch the other components on the motherboard.
Slide the memory module into the slot.
Snap the connectors into place when the board is correctly seated.
12 Gently replace the keyboard, then press it into your computer.
13 Close the computer cover, then tighten the screws on the bottom of
the computer.
14 Reinsert the battery and turn the computer on.
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