Lenovo U400 Laptop User Manual


 
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Lenovo IdeaPad U300/U300s/U400
Figure 11. Removal steps of fan assembly and heat sink assembly (continued)
Lift the fan assembly and heat sink assembly in the direction shown by arrow
3
.
Be careful not to damage the connector.
3
Attention: Do not handle the heat sink assembly roughly. Improper handling
can cause distortion or deformation and imperfect contact with components.
a
b
When installing:
Before you attach the fan assembly to the computer, apply thermal grease,
at an amount of 0.2 grams, to the
a
b
part shown in the gure above. Either
too much or too less grease application can cause a thermal problem due to
imperfect contact with a component.