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Before removing the fan and heat sink, 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 47), and then remove the following components:
●
Optical drive (see
Optical drive on page 49)
●
Hard drive (see
Hard drive on page 51)
●
WLAN module (see
WLAN module on page 55)
●
Keyboard (see
Keyboard on page 57)
●
Top cover (see
Top cover on page 61)
●
System board (see
System board on page 77)
Remove the fan and heat sink:
1. Turn the system board upside down, with the fan toward you.
NOTE: Steps 2 through 5 apply only to computer models equipped with a graphics subsystem
with discrete memory. See steps 6 through 8 for fan and heat sink removal information for
computer models equipped with a graphics subsystem with UMA memory.
2. Disconnect the fan cable (1) from the system board.
3. Loosen the captive screws (2) that secure the fan and heat sink to the system board. (Computer
models equipped with an AMD processor have three captive screws. Computer models equipped
with an Intel processor have four captive screws.)
4. Remove the three Phillips PM2.5×6.0 screws (3) that secure the fan and heat sink to
the system board.
NOTE: Due to the adhesive quality of the thermal material located between the heat sink and
system board components, it may be necessary to move the heat sink from side to side to
detach it.
84 Chapter 4 Removal and replacement procedures