Replacing
the
rear
fan
assembly
Attention
Do
not
open
your
computer
or
attempt
any
repair
before
reading
and
understanding
the
“Important
safety
information”
in
the
ThinkCentre
Safety
and
Warranty
Guide
that
was
included
with
your
computer.
To
obtain
a
copy
of
the
ThinkCentre
Safety
and
Warranty
Guide
,
go
to:
http://www.lenovo.com/support
This
section
provides
instructions
on
how
to
replace
the
rear
fan
assembly.
To
replace
the
rear
fan
assembly:
1.
Remove
the
computer
cover.
See
“Removing
the
computer
cover”
on
page
14.
2.
Locate
the
rear
fan
assembly.
See
“Locating
components”
on
page
10.
3.
Disconnect
the
rear
fan
assembly
cable
from
the
system
fan
connector
on
the
system
board.
See
“Locating
parts
on
the
system
board”
on
page
11.
4.
The
rear
fan
assembly
is
attached
to
the
chassis
by
four
rubber
mounts.
Carefully
remove
the
four
rubber
mounts
from
the
rear
of
the
chassis
by
breaking
them
or
cutting
them
with
scissors.
5.
Remove
the
rear
fan
assembly
out
of
the
chassis.
6.
Install
the
new
rear
fan
assembly
by
aligning
the
rubber
mounts
of
the
rear
fan
assembly
with
the
holes
on
the
chassis
and
push
the
rubber
mounts
through
the
holes.
Figure
31.
Removing
the
rear
fan
assembly
40
User
Guide
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