Before removing the heat sink assembly, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 26).
2. Remove the rubber feet (see Computer feet on page 26).
3. Remove the bottom cover (see Bottom cover on page 27).
4. Remove the battery (see Battery on page 28).
Remove the heat sink assembly:
1. Discrete graphics: In the order indicated on the heat sink, remove the six Phillips M2.0 × 2.8 screws (1)
that secure the heat sink to the system board.
2. Remove the heat sink (2).
Component replacement procedures 45