Chapter 2. replacing hardware, Removing the cover, Chapter – Lenovo ThinkCentre M55e User Manual
Page 15: Replacing, Hardware, Removing, Cover
Chapter
2.
Replacing
hardware
Attention
Do
not
open
your
computer
or
attempt
any
repair
before
reading
the
“Important
safety
information”
in
the
Safety
and
Warranty
Guide
that
was
included
with
your
computer
for
the
computer.
To
obtain
copies
of
the
Safety
and
Warranty
Guide,
go
to
http://www.lenovo.com/support.
Note:
Use
only
the
parts
provided
by
Lenovo
.
Removing
the
cover
Important
Turn
off
your
computer
and
wait
3
to
5
minutes
to
let
the
computer
cool
before
removing
the
computer
cover.
To
remove
the
computer
cover:
1.
Remove
any
media
(diskettes,
CDs,
or
tapes)
from
the
drives,
shut
down
your
operating
system,
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.
Remove
any
locking
devices
such
as
a
padlock
that
secure
the
cover.
©
Lenovo
2006,
2007.
Portions
©
IBM
Corp.
2005.
7