Lenovo ThinkCentre M50e Hardware Maintenance Manual - Page 134

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6. Install the new power supply and insert the four screws that hold the power supply in place. 7. Reconnect all power supply cables to the system board and the drives. See "Identifying parts on the system board" on page 124. 8. Go to "Closing the cover and connecting cables" on page 133. Removing and replacing the system board 1. Remove the cover. See "Removing the cover" on page 121. 2. Remove any PCI adapters installed. See "Removing and replacing a PCI adapter" on page 125. 3. Carefully take note of the location of all cable connections on the system board. It will be necessary to reconnect them properly when installing a new system board. See "Identifying parts on the system board" on page 124. 4. Remove any air baffles or ducts. 5. Disconnect all cables connected to the system board. 6. Remove the screws that secure the system board in place and remove the system board. 128 Hardware Maintenance Manual

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6.
Install
the
new
power
supply
and
insert
the
four
screws
that
hold
the
power
supply
in
place.
7.
Reconnect
all
power
supply
cables
to
the
system
board
and
the
drives.
See
“Identifying
parts
on
the
system
board”
on
page
124.
8.
Go
to
“Closing
the
cover
and
connecting
cables”
on
page
133.
Removing
and
replacing
the
system
board
1.
Remove
the
cover.
See
“Removing
the
cover”
on
page
121.
2.
Remove
any
PCI
adapters
installed.
See
“Removing
and
replacing
a
PCI
adapter”
on
page
125.
3.
Carefully
take
note
of
the
location
of
all
cable
connections
on
the
system
board.
It
will
be
necessary
to
reconnect
them
properly
when
installing
a
new
system
board.
See
“Identifying
parts
on
the
system
board”
on
page
124.
4.
Remove
any
air
baffles
or
ducts.
5.
Disconnect
all
cables
connected
to
the
system
board.
6.
Remove
the
screws
that
secure
the
system
board
in
place
and
remove
the
system
board.
128
Hardware
Maintenance
Manual