Lenovo IdeaPad U300s Hardware Maintenance Manual page 74

Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
Figure 10. Removal steps of fan assembly and heat sink assembly (continued)
When installing: Make sure that the fan connector is attached firmly to the
system board.
Lift the fan assembly and heat sink assembly in the direction shown by arrows
5
Attention: Do not handle the heat sink assembly roughly. Improper handling
can cause distortion or deformation and imperfect contact with components.
70
Step Screw (quantity)
M2 × 4 mm, flat-head, nylok-coated (4)
2
M2 × 3 mm, flat-head, nylok-coated (4)
3
M2 × 3 mm, flat-head, nylok-coated (2)
4
. Be careful not to damage the connector.
4
4
5
5
Color Torque
White 1.5 ± 0.2 kgfcm
White 1.5 ± 0.2 kgfcm
White 1.5 ± 0.2 kgfcm