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Table 17. Removal steps of heat sink assembly (continued)
Attention: Do not handle the heat sink assembly roughly. Improper handling of
the heat sink assembly can cause distortion or deformation and imperfect
contact with components.
6
When installing: Before you attach the fan assembly to the computer, apply
thermal grease, at an amount of 0.2 grams, on the part marked a as in the
following figure. Either too much or too less application of grease can cause a
thermal problem due to imperfect contact with a component. You also need to
peel the thin film off from the rubber b. In models with the discrete graphics
chip, there is an additional thermal rubber c whose film to be peeled off.
a
b
c
64 Lenovo 3000 N500 Hardware Maintenance Manual