3.
Locate
the
heat
sink
and
fan
assembly
and
disconnect
the
heat
sink
and
fan
assembly
cable
from
the
system
board.
See
“Locating
parts
on
the
system
board”
on
page
10.
4.
Remove
the
heat
sink
and
fan
assembly
from
the
system
board
by
pivoting
the
lever
1
that
secures
the
heat
sink
and
fan
assembly
until
the
lever
is
fully
in
the
up
position.
Carefully
lift
the
heat
sink
and
fan
assembly
off
the
system
board.
Notes:
a.
You
might
have
to
gently
twist
the
heat
sink
and
fan
assembly
to
free
it
from
the
microprocessor.
b.
Do
not
touch
the
thermal
grease
while
handling
the
heat
sink
and
fan
assembly.
5.
Place
the
new
heat
sink
and
fan
assembly
into
position
and
lower
the
lever
to
secure
the
new
heat
sink
and
fan
assembly.
6.
Connect
the
heat
sink
and
fan
assembly
cable
to
the
microprocessor
fan
connector
on
the
system
board.
See
“Locating
parts
on
the
system
board”
on
page
10.
7.
Go
to
“Completing
the
parts
replacement”
on
page
36.
Figure
28.
Removing
the
heat
sink
and
fan
assembly
Chapter
2.
Installing
options
and
replacing
hardware
31
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