Sony VGC-RM1N User Manual page 100

To install an add-on card
1 Remove the top panel of the main unit.
See Removing and Replacing the Main Unit Top Panel
2 Touch a metal object to discharge static electricity.
3 Locate an available expansion slot. Remove the slot cover's screw, and then remove the slot cover.
!
Be careful not to damage the circuit board and cables inside.
(page 86) for the detailed instructions.
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Upgrading Your VAIO Computer
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