Dell Alienware M17x R4 (Early 2012) - Manual (Page 23)

Removing the Memory Module(s) | 23
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.
4 Remove the memory module from the memory-module connector.
1 memory-module
connector 2 securing clips (2)
3 memory module
3
2
1