Reverse this procedure to install the WLAN module.
Hard drive
Description Spare part number
1-TB, 5400-rpm, 9.5-mm 676521-001
750-GB, 5400-rpm, 9.5-mm 634250-001
500-GB, 5400-rpm, 9.5- and 7.0-mm 683802-001
Before removing the hard drive, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
Battery on page 43).
5.
Remove the service cover (see
Solid-state drive on page 44).
Remove the hard drive:
1. Release the zero insertion force (ZIF) connector (1) to which the hard drive connector cable is
attached, and then disconnect the hard drive connector cable (2) from the system board.
2. Release the hard drive connector cable (3) from the opening in the base enclosure.
Component replacement procedures
47
