Removing
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
came
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
remove
the
computer
cover.
CAUTION:
Turn
off
the
computer
and
wait
three
to
five
minutes
to
let
the
computer
cool
before
removing
the
computer
cover.
To
remove
the
computer
cover:
1.
Shut
down
the
operating
system,
remove
any
media
(DVDs,
CDs,
or
tapes)
from
the
drives,
and
turn
off
all
attached
devices.
2.
Unplug
all
power
cords
from
electrical
outlets.
3.
Disconnect
all
cables
attached
to
the
computer.
This
includes
power
cords,
Input/Output
(I/O)
cables,
and
any
other
cables
that
are
connected
to
the
computer.
4.
If
there
are
thumb
screws
that
secure
the
computer
cover,
remove
them.
5.
Press
the
button
on
the
left-side
cover
and
slide
the
cover
to
the
rear
to
remove.
Chapter
8.
Replacing
FRUs
-
Tower
Computers
87
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