Replacing the power supply, Replacing, Power – Lenovo ThinkCentre A60 User Manual
Page 18: Supply

Replacing
the
power
supply
Attention:
Do
not
remove
the
computer
cover
or
attempt
any
repair
before
reading
the
“Important
safety
information”
in
the
Safety
and
Warranty
Guide
that
was
included
with
your
computer.
To
obtain
copies
of
the
Safety
and
Warranty
Guide,
go
to
the
Support
Web
site
at
http://www.lenovo.com/support.
To
replace
the
power
supply:
1.
Remove
the
computer
cover.
See
Note:
For
this
procedure,
it
helps
to
lay
the
computer
on
its
side.
2.
Disconnect
the
power
supply
cables
from
the
system
board
and
from
all
drives.
See
3.
Remove
the
four
screws
that
secure
the
power
supply
at
the
rear
of
the
chassis.
4.
Lift
the
power
supply
out
of
the
chassis.
5.
Install
the
new
power
supply
into
the
chassis
so
that
the
screw
holes
in
the
power
supply
align
with
those
in
the
chassis.
6.
Install
the
four
screws
to
secure
the
power
supply.
Note:
Use
only
the
screws
provided
by
Lenovo.
7.
Reconnect
the
power
supply
connectors
to
the
system
board.
8.
Reconnect
a
power
supply
connector
to
each
of
the
drives.
9.
Go
to
10
Hardware
Replacement
Guide