Lenovo ThinkCentre M55 User Manual
Page 17
4.
Remove
the
power
supply
cables
from
the
cable
clips
and
ties.
5.
Remove
the
four
screws
that
secure
the
power
supply
at
the
rear
of
the
chassis.
6.
Press
inward
on
the
metal
retainer
inside
the
chassis
and
slide
the
power
supply
toward
the
front
of
the
chassis
and
lift
it
out
of
the
chassis
as
shown.
7.
Install
the
new
power
supply
into
the
chassis
so
that
the
screw
holes
in
the
power
supply
align
with
those
in
the
chassis.
8.
Install
and
tighten
the
four
screws
that
secure
the
power
supply.
Note:
Use
only
the
screws
provided
by
Lenovo.
9.
Reconnect
power
supply
connectors
to
the
system
board.
See
10.
Reinstall
the
hard
disk
drive
mounting
bracket.
11.
Reconnect
a
power
supply
connector
to
each
of
the
drives.
12.
Go
to
Chapter
2.
Replacing
hardware
9