Lenovo IdeaPad U455 - Manual (Page 75)

Chapter 6. Upgrading and replacing devices
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6
If two SDRAMs are already installed in the memory slot, remove one
of them to make room for the new one by pressing out on the latches
on both edges of the socket at the same time. Be sure to save the old
SDRAM for future use.
7
Insert the notched end of the DIMM into the socket.
Press the DIMM firmly, and pivot it until it snaps into place. Make sure
that it is firmly fixed in the slot and does not move easily.
8
After aligning the attachment clips with their matching gaps, reinstall
the compartment cover.
a a
b
a a
b