Sony PCV-RSM22 Hardware Manual page 45

Upgrading your VAIO computer
Adding / replacing a memory module
If you are not familiar with upgrading memory on a computer, we highly recommend that you contact your
dealer.
To add or change a memory module, proceed as follows:
1 Shut down the computer, unplug it, and remove any peripheral devices.
2 Wait for the computer to cool down, then open the unit as described in Opening the unit
3 Gently place the unit on its side.
4 To remove an existing memory module, release the end latches and gently lift out the module, as shown
(may vary from actual configuration).
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(page 42).