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Lenovo B550 Hardware Maintenance Manual
Figure 6. Removal steps of fan assembly and heat sink assembly (continued)
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
part shown in the figure above. Either
too much or too less grease application can cause a thermal problem due to
imperfect contact with a component.
In models with the discrete graphics chip, there is an additional thermal
•
rubber
b
whose film to be peeled off.
