Dell Alienware M11x (Early 2010) - Manual (Page 65)

CHAPTER 4: INSTALLING AND REPLACING COMPONENTS
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NOTE: If you need to install memory modules in two connectors, install a memory module
in the lower connector before you install a memory module in the upper connector.
NOTE: If the memory module is not installed properly, the computer may not boot.
Upgrading or Replacing the Hard Drive Assembly
Your laptop is equipped with one hard drive socket.
Removing the Hard Drive
Follow the instructions in “Before You Begin” on page 1. 56.
Remove the battery (see “Replacing the Battery Pack” on page 2. 60).
Loosen the two captive screws on the hard drive assembly. 3.
Using the black pull-tab, slide and lift the hard drive assembly to disconnect it from the 4.
system board connector.