Hard drives, primary and secondary
NOTE: The hard drive spare part kit does not include the hard drive bracket, cover, or screws. The hard drive 
bracket, cover, and screws are included in the Hard Drive Hardware Kit, spare part number 734280-001.
Description Spare part number
1-TB, 7200-RPM, SATA, 9.5-mm 766644-001
1-TB, 5400-RPM, SATA, 7.0-mm 778192-001
750-GB, 7200-RPM, SATA, 7.0-mm 778191-001
500-GB, 7200-RPM, SATA, 7.0-mm 703267-001
500-GB, 7200-RPM, SED, 7.0-mm 703268-001
500-GB, 5400-RPM, SATA, FIPS, 7.0-mm 730946-001
Before removing the primary hard drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off 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 first unplugging the power cord from the AC outlet and 
then unplugging the AC adapter from the computer.
4. Position the computer upside down on a flat surface.
5. Remove the battery (see Battery on page 45).
6. Remove the service cover (see Service cover on page 47).
7. Loosen the 3 captive hard drive screws (1) that secure the hard drive to the computer.
8. Release the hard drive latch (2).
9. Grasp the latch and remove the hard drive (3) from the hard drive bay.
48 Chapter 5   Removal and replacement procedures for Customer Self-Repair parts