Dell Alienware M14x R2 (Early 2012) - Manual (Page 28)

Procedure
1 Loosen the captive screws that secure the memory-module cover to
the computer base.
2 Lift and slide the tabs on the memory-module cover out of the slots on
the computer base.
1
2
1 captive screws (2) 2 memory-module cover
CAUTION: To prevent damage to the memory-module connector, do not use tools
to spread the memory module securing clips.
3 Use your fingertips to carefully spread apart the securing clips on each end
of the memory-module connector until the memory module pops up.
Memory Module(s) 30