Dell Alienware Aurora R3 (Early 2011) - Manual (Page 17)

5. Release the tabs on the hard-drive bracket and lift the hard drive out of the bracket (if applicable).
Replacing the Hard Drive(s)
1. Follow the instructions in Before You Begin .
2. Snap the hard-drive bracket on to the new hard drive (if applicable).
3. Slide the hard-drive assembly into the hard-drive cage until the release tabs snap into place.
4. Connect the power and data cables to the hard-drive assembly (if applicable).
5. Replace the left side-panel (see Replacing the Left Side-Panel ).
6. Connect your computer and all attached devices to electrical outlets, and turn them on.
Removing the Optical Drive(s)
1. Follow the instructions in Before You Begin .
2. Press the AlienHead on the front of your computer to lower the drive panel.
1 hard-drive assembly 2 release tabs (2)
1 hard drive 2 tabs (4)
NOTE: See the documentation that shipped with your new hard drive and ensure that the jumper positioning is correct.