Lenovo 3000 N500 User Manual

Page 72

background image

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