4.
Disconnect
the
power
supply
cables
1
and
2
from
the
system
board
connectors
and
from
all
drives.
5.
Remove
the
power
supply
cables
from
the
cable
clips
and
ties.
6.
Slide
the
power
supply
assembly
forward
and
remove
it
from
the
computer.
7.
Install
the
new
power
supply
assembly
into
the
chassis
so
that
the
screw
holes
in
the
power
supply
assembly
align
with
those
in
the
chassis.
Note:
Use
only
the
screws
provided
by
Lenovo.
8.
Install
and
tighten
the
four
screws
at
the
rear
of
the
chassis
to
secure
the
power
supply
assembly.
9.
Reconnect
all
the
power
supply
cables
to
the
drives
and
the
system
board.
10.
Go
to
“Completing
the
FRU
replacement”
on
page
114.
Chapter
8.
Replacing
FRUs
89
Summary of Contents for ThinkCentre A55
Page 1: ...Hardware Maintenance Manual Types 9636 9638 9640 9641 9642 9643 9644 9645 ...
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Page 17: ...Chapter 2 Safety information 11 ...
Page 18: ... 18 kg 37 lbs 32 kg 70 5 lbs 55 kg 121 2 lbs 1 2 12 Hardware Maintenance Manual ...
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Page 23: ...1 2 Chapter 2 Safety information 17 ...
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Page 25: ...1 2 Chapter 2 Safety information 19 ...
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Page 115: ...Chapter 8 Replacing FRUs 109 ...
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Page 210: ...Part Number 42Y4652 Printed in USA 1P P N 42Y4652 ...