Sony VGC-RM1 - Manual (Page 96)

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Upgrading Your VAIO Computer
4 Locate the memory module(s) you wish to remove.
5 Push down on the latches (2), located on either side of the module, to gently eject it from the slot.
6 Grasp the memory module by the sides and remove from the main unit. Store the module in a static-free bag.
7 Remove the memory module from its anti-static package, handling it by the edges.
8 Locate the center notch (3) on the bottom edge of the memory module and align it to the center bump in the open module
slot.