Maintenance and Service Guide

Hard drive
NOTE: The hard drive spare part kit does not include the hard drive cover.
Description Spare part number
2-TB, 5400-rpm, 2.5 inch 912487-855
1-TB, 5400-rpm, 2.5 inch 676423-855
500-GB, 5400-rpm, 2.5 inch 683839-855
Hard drive holder 905974-001
Before removing the hard drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the battery (see Battery on page 32).
5. Remove the optical drive (see Optical drive on page 34).
6. Remove the bottom cover (see Bottom cover on page 41).
To remove the hard drive:
1. Disconnect the USB board cable from the system board and remove it from atop the hard drive.
Component replacement procedures 43