Dell Alienware M17x R3 (Early 2011) - Manual (Page 22)

22 Hard Drive(s)
CAUTION: When the hard drive is not in the computer, store it in protective
antistatic packaging (see "Protecting Against Electrostatic Discharge" in the
safety instructions that shipped with your computer).
Replacing the Hard Drive(s)
1 Follow the instructions in "Before You Begin" on page 9.
2 Remove the new drive from its packaging.
Save the original packaging for storing or shipping the hard drive.
3 Connect the interposer to the hard drive.
4 Place the hard drive in the hard-drive bracket.
5 Replace the four screws that secure the hard drive to the hard-drive
bracket.
6 Align the connector on the hard drive with the connector on the system
board and press the hard drive until it is fully seated.
1 interposer 2 screws (4)
3 hard-drive bracket 4 hard drive
1 2
3
4