1 hard drive 2 M3 x 3-mm screws (4) 3 hard drive brackets (2)4 hard drive cable connectorReplacing a Hard Drive1. Attach the new hard drive to the brackets using four M3 x 3-mm screws.2. Connect the data cable to the new hard drive.3. Connect the hard drive cable to the appropriate connector on the system board (JHDD1 for primary; JHDD2 forsecondary).4. Align the captive screws in each corner of the hard drive with the holes in the frame and tighten the screws.5. Replace the top cover (see Replacing the Top Cover).6. Replace the cosmetic covers (see Replacing the Cosmetic Covers).NOTICE: To avoid damage to the keyboard, ensure that you attach the keyboard securely before moving thecomputer.7. Firmly attach the keyboard to the computer and close the display (see Closing the Display).8. Turn the computer upside down and replace the system battery (see Replacing the System Battery).If you have installed a replacement hard drive:9. Turn the computer over and open the display (see Opening the Display).10. Press the power button to turn the computer on.11. Reinstall the Microsoft® Windows® operating system. For instructions, see "Restoring Your Operating System" in theOwner's Manual.12. Reinstall drivers on the new hard drive. For instructions, see "Reinstalling Drivers and Utilities" in the Owner's Manual.13. If the original hard drive had RAID configured, configure RAID on the new hard drive. See "About Your RAIDConfiguration" in your Owner's Manual.