Lenovo ThinkPad Edge E420 Hardware Maintenance Manual page 83

Table 24. Removal steps of fan assembly (continued)
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
can cause a thermal problem due to imperfect contact with a component. You need to peel the thin film off from
b
the rubbers marked .
For models with a discrete fan assembly
For models with an integrated fan assembly
a
as shown in the following figures. Either too much or too less application of grease
a
a
a
a
b
Chapter 8
.
Removing and replacing a FRU
77