Lenovo ThinkCentre M55 User Manual - Page 37

Opening, cover

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Opening the cover Important Read "Important safety information" on page v"Important safety information" on page v and "Handling static-sensitive devices" on page 17 before opening the computer cover. To open 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 and computer. 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 an integrated cable lock that secure the cover. 5. Press the buttons on the sides of the computer and pivot the cover upward to open the computer as shown. Chapter 3. Installing options 21

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Opening
the
cover
Important
Read
“Important
safety
information”
on
page
v“Important
safety
information”
on
page
v
and
“Handling
static-sensitive
devices”
on
page
17
before
opening
the
computer
cover.
To
open
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
and
computer.
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
an
integrated
cable
lock
that
secure
the
cover.
5.
Press
the
buttons
on
the
sides
of
the
computer
and
pivot
the
cover
upward
to
open
the
computer
as
shown.
Chapter
3.
Installing
options
21