Lenovo ThinkPad X200 7458 User Manual page 55

6. If the SO-DIMM is already in the memory slot, remove it to make room
for the new one by pressing out on the latches 1 on both edges of the
socket at the same time, and pulling out the SO-DIMM 2 . Be sure to
save it for future use.
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Chapter 5. Upgrading and replacing devices