Lenovo ThinkPad Edge E420 Hardware Maintenance Manual - Page 85
Table 24. Removal steps of fan assembly continued, When installing
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Table 24. Removal steps of fan assembly (continued) 3 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 shown in the following figures. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component. You need to peel the thin film off from the rubbers marked b . For models with a discrete fan assembly a a b For models with an integrated fan assembly a a Chapter 8. Removing and replacing a FRU 79
Table 24. Removal steps of fan assembly (continued)
3
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 shown in the following figures. Either too much or too less application of grease
can cause a thermal problem due to imperfect contact with a component. You need to peel the thin film off from
the rubbers marked
b
.
For models with a discrete fan assembly
a
a
b
For models with an integrated fan assembly
a
a
Chapter 8
.
Removing and replacing a FRU
79