Lenovo E200 Hardware Maintenance Manual (HMM) - 3000 E200 (type 7848) - Page 103

Replacing, assembly

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Replacing the heat sink and fan assembly CAUTION: The heat sink, microprocessor and memory module might be very hot. Turn off the computer and wait three to five minutes to let the computer cool before opening the computer cover. 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 heat sink and fan assembly. To replace the heat sink and fan assembly: 1. Remove the computer cover. See "Removing the computer cover" on page 86. 2. Lay the computer on its side for easier access to the system board. 3. Locate the heat sink and fan assembly. See "Identifying parts on the system board" on page 85. 4. Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system board. 5. Rotate the four screws 1 one by one in the direction indicated by the arrows on the screw head, so that the heat sink and fan assembly can be lifted out from the system board. Chapter 8. Replacing FRUs (Type 7848) 97

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Replacing
the
heat
sink
and
fan
assembly
CAUTION:
The
heat
sink,
microprocessor
and
memory
module
might
be
very
hot.
Turn
off
the
computer
and
wait
three
to
five
minutes
to
let
the
computer
cool
before
opening
the
computer
cover.
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:
This
section
provides
instructions
on
how
to
replace
the
heat
sink
and
fan
assembly.
To
replace
the
heat
sink
and
fan
assembly:
1.
Remove
the
computer
cover.
See
“Removing
the
computer
cover”
on
page
86.
2.
Lay
the
computer
on
its
side
for
easier
access
to
the
system
board.
3.
Locate
the
heat
sink
and
fan
assembly.
See
“Identifying
parts
on
the
system
board”
on
page
85.
4.
Disconnect
the
heat
sink
and
fan
assembly
cable
from
the
microprocessor
fan
connector
on
the
system
board.
5.
Rotate
the
four
screws
±1²
one
by
one
in
the
direction
indicated
by
the
arrows
on
the
screw
head,
so
that
the
heat
sink
and
fan
assembly
can
be
lifted
out
from
the
system
board.
Chapter
8.
Replacing
FRUs
(Type
7848)
97