Dell Alienware M17x R2 (Early 2010) - Manual (Page 41)

41 CHAPTER 4: INSTALLING ADDITIONAL OR REPLACEMENT COMPONENTS
11. Remove the interposer from the hard drive.
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2
1 interposer 2 hard drive
To replace the hard drive(s), perform the removal steps in reverse order.
9. Remove the four screws that secure the hard drive to the hard-drive bracket.
10. Lift the hard drive out of the hard-drive bracket.
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1
2
1 hard drive 3 screws (4)
2 hard-drive bracket