Lenovo U300S manual Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual

Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual

Figure 10. Removal steps of fan assembly and heat sink assembly (continued)

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When installing: Make sure that the fan connector is attached firmly to the system board.

Step	Screw (quantity)	Color	Torque
2	M2 × 4 mm, flat-head, nylok-coated (4)	White	1.5 ± 0.2 kgfcm
3	M2 × 3 mm, flat-head, nylok-coated (4)	White	1.5 ± 0.2 kgfcm
4	M2 × 3 mm, flat-head, nylok-coated (2)	White	1.5 ± 0.2 kgfcm

Lift the fan assembly and heat sink assembly in the direction shown by arrows 5. Be careful not to damage the connector.

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Attention: Do not handle the heat sink assembly roughly. Improper handling can cause distortion or deformation and imperfect contact with components.

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