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Fan/heat sink assembly
Description Spare part number
Fan/heat assembly (includes replacement thermal material) 688306-001
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 35), and then remove the following components:
a. Memory module/wireless module compartment cover (see
Memory module on page 36)
b. Keyboard (see
Keyboard on page 39)
c. Hard drive (see
Hard drive on page 45)
d. Top cover (see
Top cover on page 49)
e. System board (see
System board on page 62)
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. Following the 1, 2, 3, 4 sequence stamped into the heat sink, loosen the four captive Philllips
screws (2) that secure the fan/heat sink assembly to the system board.
Component replacement procedures
65