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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 51), and then remove the following components:
a.
Hard drive (see
Hard drive on page 52)
b. Optical drive (see
Optical drive on page 59)
c. Keyboard (see
Keyboard on page 61)
d. Top cover (see
Top cover on page 66)
e. System board (see
System board on page 77)
Remove the fan/heat sink assembly:
1. Turn the system board upside down, with the front toward you.
NOTE: Steps 2 and 3 apply to computer models equipped with a graphics subsystem with
discrete memory. See steps 4 and 5 for fan/heat sink assembly removal information for computer
models equipped with a graphics subsystem with UMA memory.
2. Disconnect the fan cable (1) from the system board.
Component replacement procedures
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