Heat sink assembly
NOTE: The heat sink assembly spare part kit includes replacement thermal materials.
Table 5-16 Heat sink descriptions and part numbers
Description Spare part number
Heat sink assembly, discrete (includes replacement thermal materials) L23192-001
Heat sink assembly, UMA (includes replacement thermal materials) L23191-001
Before removing the heat sink assembly, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 27).
2. Remove the rubber feet (see Computer feet on page 27).
3. Remove the bottom cover (see Bottom cover on page 29).
4. Remove the battery (see Battery on page 31).
To remove the heat sink assembly:
1. If you have a model with discrete graphics:
a. In the order indicated on the heat sink, remove the six Phillips M2.0 × 4.0 screws (1) that secure the
heat sink to the system board.
b. Remove the heat sink (2) from the system board.
2. If you have a model with UMA graphics:
a. In the order indicated on the heat sink, remove the four Phillips M2.0 × 4.0 screws (1) that secure
the heat sink to the system board.
48 Chapter 5 Removal and replacement procedures for authorized service provider parts
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