1. Prepare the computer for disassembly (Preparation for disassembly on page 66).
2. Remove the service cover (Service cover on page 40), and then remove the following components:
1. Battery (see Battery on page 41)
2. Solid-state drives 3 and 4 (see Solid-state drives 3 and 4 on page 42)
3. Solid-state drive carrier (see Solid-state drives 3 and 4 on page 42)
4. Hard drive (see Hard drive on page 44)
5. Keyboard (see Keyboard on page 54)
6. Bottom case (see Bottom case on page 66)
Remove the fan/heat sink assembly:
1. Disconnect the fan cables (1) from the system board.
2. Release the webcam cable (2) and the wireless antenna cables from the retention clips (3) built into the
right fan.
3. Release the display panel cable from the retention clips (4) built into the left fan.
4. Remove the four Phillips M2.5 × 6.0 screws (5) that secure the the fan/heat sink assembly to the computer.
5. In the order indicated on the fan/heat sink assembly, loosen the eight captive Phillips screws (6) that
secure the the fan/heat sink assembly to the computer.
Computer models equipped with a graphics subsystem with UMA memory have only four captive screws
securing the fan/heat sink assembly to the computer.
6. Lift the front edge of the fan/heat sink assembly (7) until it rests at an angle.
80 Chapter 6 Removal and replacement procedures for authorized service provider parts ENWW
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