Lenovo NetVista Hardware Maintenance Manual (HMM) for NetVista 2292, 6343, 634 - Page 49

Replacing, power, supply

Page 49 highlights

4. Loosen the two captured screws that hold the fan sink in place and pivot them off the fan sink notches. 5. Gently twist the fan sink to break the thermal grease seal and lift the fan sink off the microprocessor. Note: If the thermal grease seal cannot be broken, you can turn on the computer for a few mimutes to heat the microprocessor and loosen the thermal grease. 6. Pull out and lift up the processor socket lever to its maximum vertical position to release the microprocessor module. 7. Gently lift the microprocessor off the microprocessor socket. Notes: a. Note the position of the beveled corner on the microprocessor. When installing the new microprocessor, the beveled corner on the microprocessor must be properly oriented with the beveled corner in the socket. b. When installing the new microprocessor, make sure to reinstall the fan sink to insure proper cooling. 8. Reverse this procedure to install the new microprocessor. 9. Go to "Completing the FRU replacement." on page 45 when the microprocessor has been installed. Replacing the power supply 1. Shut down your operating system and turn off the computer. 2. Remove the cover. See "Removing the cover" on page 39. 3. Disconnect all power supply cables from the system board and the drives. See "Identifying parts on the system board" on page 39. 4. Remove the screws that hold the power supply in place. 5. Lift the power supply out. 6. Reverse this procedure to install the new power supply. Chapter 6. Replacing FRUs 43

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4.
Loosen
the
two
captured
screws
that
hold
the
fan
sink
in
place
and
pivot
them
off
the
fan
sink
notches.
5.
Gently
twist
the
fan
sink
to
break
the
thermal
grease
seal
and
lift
the
fan
sink
off
the
microprocessor.
Note:
If
the
thermal
grease
seal
cannot
be
broken,
you
can
turn
on
the
computer
for
a
few
mimutes
to
heat
the
microprocessor
and
loosen
the
thermal
grease.
6.
Pull
out
and
lift
up
the
processor
socket
lever
to
its
maximum
vertical
position
to
release
the
microprocessor
module.
7.
Gently
lift
the
microprocessor
off
the
microprocessor
socket.
Notes:
a.
Note
the
position
of
the
beveled
corner
on
the
microprocessor.
When
installing
the
new
microprocessor,
the
beveled
corner
on
the
microprocessor
must
be
properly
oriented
with
the
beveled
corner
in
the
socket.
b.
When
installing
the
new
microprocessor,
make
sure
to
reinstall
the
fan
sink
to
insure
proper
cooling.
8.
Reverse
this
procedure
to
install
the
new
microprocessor.
9.
Go
to
“Completing
the
FRU
replacement.”
on
page
45
when
the
microprocessor
has
been
installed.
Replacing
the
power
supply
1.
Shut
down
your
operating
system
and
turn
off
the
computer.
2.
Remove
the
cover.
See
“Removing
the
cover”
on
page
39.
3.
Disconnect
all
power
supply
cables
from
the
system
board
and
the
drives.
See
“Identifying
parts
on
the
system
board”
on
page
39.
4.
Remove
the
screws
that
hold
the
power
supply
in
place.
5.
Lift
the
power
supply
out.
6.
Reverse
this
procedure
to
install
the
new
power
supply.
Chapter
6.
Replacing
FRUs
43