HP Envy 14-2100 Getting Started page 58

c. Gently press the memory module (3) down, applying pressure
to both the left and right edges of the memory module, until the
retention clips snap into place.
CAUTION:
that you do not bend the memory module.
9. Replace the memory module compartment cover (1) and then slide
the cover to the front until it is seated.
To prevent damage to the memory module, be sure
Replacing memory modules
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