Description Spare part number
With a fingerprint reader 646335-001
Without a fingerprint reader 646337-001
Before removing the top cover, 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. Remove the battery (see
Battery on page 46).
5. Remove the following components:
a. Bottom door (see
Bottom door on page 48).
b. Hard drive (see
Hard drive on page 51)
c. Optical drive (see
Optical drive on page 49)
d. WLAN module (see
WLAN/Bluetooth combo card on page 57)
e. WWAN module (see
WWAN module on page 55)
f. Fan (see
Fan on page 65)
g.
Heat sink (see
Heat sink on page 67)
h. Keyboard (see
Keyboard on page 62)
Remove the top cover:
1. Position the computer upside-down with the front toward you.
70 Chapter 4 Removal and replacement procedures
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