Sony VAIO VGCRB40 Owner's Manual page 52

Installing a memory module
1.
Shut down your computer and turn off all peripheral devices, such as your printer.
2.
Unplug your computer and any peripheral devices.
3.
Remove the side cover. See
4.
Gently place the unit on its side. If necessary, remove any cables, add-on cards, or other components to access
the memory module slots.
5.
Remove the memory module from its anti-static package, handling it by the the edges.
6.
Locate the notch on the bottom edge of the module to align it over the open memory slot.
7. Firmly insert the bottom edge of the memory module into the slot.
8. Press down evenly against the module's upper corners. The latches snap into position, holding the module in
place.
To avoid damaging a memory module slot, move the end latches slightly outward to relieve
pressure. The module clicks into place.
9.
Reinstall any components or add-on cards you may have removed.
10. Replace the side cover. See
Removing the side cover.
Replacing the cover.
Page 52