4.
Remove the system board (3) by sliding it up and to the right at an angle.
Reverse this procedure to install the system board.
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 34), and then remove the following components:
a. Memory module/wireless module compartment cover (see
Memory module on page 35)
b. Keyboard (see
Keyboard on page 38)
c. Hard drive (see
Hard drive on page 44)
Component replacement procedures
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