1. Prepare the computer for disassembly (Preparation for disassembly on page 44).
2. Remove the bottom cover (Bottom cover on page 44).
3. Disconnect the battery cable from the system board the battery (see Battery on page 45).
4. Remove the system board (see System board on page 61).
Remove the fan/heat sink assembly:
1. Disconnect the fan cables (1) from the system board.
2. In the order indicated on the heat sink, loosen the four captive Phillips screws (2) that secure the fan/heat
sink assembly to the computer.
3. Loosen the four captive Phillips screws (3) that secure the fan/heat sink assembly to the computer.
4. Remove the fan/heat sink assembly from the system board (4).
ENWW Component replacement procedures 65
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