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Replacing
customer
replaceable
units
(CRUs)
Attention
Do
not
open
your
computer
or
attempt
any
repair
before
reading
the
“Safety
notices”
in
the
Quick
Reference
that
was
included
with
your
computer.
If
you
no
longer
have
this
copy
of
the
Quick
Reference,
you
can
obtain
one
online
from
the
IBM
Web
site
at
http://www.ibm.com/pc/support.
Opening
the
cover
Important
Turn
off
the
computer
and
wait
3
to
5
minutes
to
let
the
computer
cool
before
opening
the
cover.
To
open
the
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
the
floor
stand,
if
attached.
5.
If
a
cover
lock
is
installed,
unlock
the
cover.
6.
Press
inward
on
the
two
buttons
and
pivot
the
top
cover
upward
as
illustrated.
©
Copyright
IBM
Corp.
2004
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