Fan/heat sink assembly
Description Spare part number
Fan/heat sink assembly (includes fan cable, 4 captive screws [secured by C-clips], and replacement
thermal material)
809857-001
Before removing the fan/heat sink assembly, 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 24), and then remove the following components:
a. Bottom cover (see Bottom cover on page 26)
b. Hard drive (see Hard drive on page 28)
c. WWAN module (see WWAN module on page 33)
d. Keyboard/top cover (see Keyboard/top cover on page 48)
e. System board (see System board on page 55)
Remove the fan/heat sink assembly:
1. Turn the system board upside down with the front toward you.
2. Disconnect the fan cable (1) from the system board.
3. Loosen the four Phillips captive screws (2) that secure the fan/heat sink assembly to the system board.
NOTE: Due to the adhesive quality of the thermal material located between the fan/heat sink
assembly and system board components, it may be necessary to move the fan/heat sink assembly from
side to side to detach it.
58 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
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