Removing
and
replacing
the
power
supply
assembly
Important
Before
you
install
or
remove
any
component,
read
“Important
safety
information”
on
page
v.
These
precautions
and
guidelines
will
help
you
work
safely.
To
remove
and
replace
the
power
supply
assembly,
do
the
following:
1.
Turn
off
the
computer
and
disconnect
the
power
cord
from
the
electrical
outlet
and
from
the
computer.
2.
Open
the
cover
(see
“Opening
the
cover”
on
page
10).
3.
Rotate
the
drive
bay
assembly
upward
to
gain
access
to
the
cable
connections.
4.
Locate
the
power
supply
assembly.
See
“Locating
components”
on
page
11.
Note:
Take
note
of
the
routing
of
the
power
supply
cables.
It
is
important
to
route
the
cables
the
same
way
when
installing
a
new
power
supply
assembly.
5.
Disconnect
the
power
cables
(P3
and
P4)
from
the
hard
disk
drive
and
the
CD-ROM
drive.
Appendix
A.
Replacing
customer
replaceable
units
(CRU)
33