Replacing
the
power
supply
assembly
Attention
Do
not
open
your
computer
or
attempt
any
repair
before
reading
and
understanding
the
“Important
safety
information”
in
the
ThinkCentre
Safety
and
Warranty
Guide
that
came
with
your
computer.
To
obtain
a
copy
of
the
ThinkCentre
Safety
and
Warranty
Guide
,
go
to:
http://www.lenovo.com/support
This
section
provides
instructions
on
how
to
replace
the
power
supply
assembly.
To
replace
the
power
supply
assembly:
1.
Remove
the
four
screws
at
the
rear
of
the
chassis
that
secure
the
power
supply
assembly.
2.
Open
the
computer
cover.
See
“Opening
the
computer
cover”
on
page
12.
3.
Pivot
the
drive
bay
assembly
upward
to
gain
access
to
the
power
supply
assembly.
4.
Locate
the
power
supply
assembly.
See
“Locating
components”
on
page
9.
Figure
24.
Removing
the
retaining
screws
for
the
power
supply
assembly
28
User
Guide
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