11. Remove the system board.
Reverse this procedure to install the system board.
Heat sink
To remove the heat sink, use these procedures and illustrations.
Table 5-12
Heat sink descriptions and part numbers
Description Spare part number
Heat sink (includes captive screws and replacement thermal material) N07350-001
Before removing the heat sink, follow these steps:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 41).
2. Remove the bottom cover (see Bottom cover on page 41).
3. Remove the battery (see Battery on page 43).
4. Remove the fan (see Fan on page 53).
5. Remove the system board (see System board on page 57).
Remove the heat sink:
1. In the order indicated on the heat sink, loosen the four Phillips captive screws (1) that secure the heat sink
to the system board.
Heat sink 61
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