Lenovo IdeaPad N585 Hardware Maintenance Manual page 72

Lenovo IdeaPad P580/P585/N580/N581/N585/N586 Hardware
Maintenance Manual
When installing: Before you attach the fan assembly to the computer, apply
thermal grease, at an amount of 0.2 grams, to the
figure above. Either too much or too less grease application can cause a thermal
problem due to imperfect contact with a component.
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