IBM 8835 Hardware Maintenance Manual - Page 64

Removing, microprocessor

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Removing a microprocessor Complete the following steps to remove a microprocessor. Note: v Read "Installation guidelines" on page 25. v Read the safety notices at "Safety information" on page 101. v Read "Handling static-sensitive devices" on page 25. 1. Turn off the server and disconnect all power cords and external cables; then, remove the server cover (see "Removing the cover and bezel" on page 27). 2. Identify the microprocessor to be removed. Captive screws Microprocessor Heat-sink Heat sink retention module Microprocessorlocking lever Microprocessor socket 3. Remove the heat sink: a. Loosen one captive screw fully; then, loosen the other captive screw. Attention: Loosening one screw fully before loosening the other screw will help to break the thermal bond that adheres the heat sink to the microprocessor. b. Pull the heat sink off of the microprocessor. 4. Rotate the locking lever on the microprocessor socket from its closed and locked position until it stops or clicks in the fully open position. 5. Pull the microprocessor out of the socket. To install a microprocessor, see "Installing a microprocessor" on page 39. To reuse the heat sink that was removed in step 3 above, see "Thermal grease" on page 55. 54 325 Type 8835: Hardware Maintenance Manual and Troubleshooting Guide Eserver

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Removing
a
microprocessor
Complete
the
following
steps
to
remove
a
microprocessor.
Note:
v
Read
“Installation
guidelines”
on
page
25.
v
Read
the
safety
notices
at
“Safety
information”
on
page
101.
v
Read
“Handling
static-sensitive
devices”
on
page
25.
1.
Turn
off
the
server
and
disconnect
all
power
cords
and
external
cables;
then,
remove
the
server
cover
(see
“Removing
the
cover
and
bezel”
on
page
27).
2.
Identify
the
microprocessor
to
be
removed.
Microprocessor
Heat-sink
Heat sink
retention module
Microprocessor
socket
Captive screws
Microprocessor-
locking lever
3.
Remove
the
heat
sink:
a.
Loosen
one
captive
screw
fully;
then,
loosen
the
other
captive
screw.
Attention:
Loosening
one
screw
fully
before
loosening
the
other
screw
will
help
to
break
the
thermal
bond
that
adheres
the
heat
sink
to
the
microprocessor.
b.
Pull
the
heat
sink
off
of
the
microprocessor.
4.
Rotate
the
locking
lever
on
the
microprocessor
socket
from
its
closed
and
locked
position
until
it
stops
or
clicks
in
the
fully
open
position.
5.
Pull
the
microprocessor
out
of
the
socket.
To
install
a
microprocessor,
see
“Installing
a
microprocessor”
on
page
39.
To
reuse
the
heat
sink
that
was
removed
in
step
3
above,
see
“Thermal
grease”
on
page
55.
54
Eserver
325
Type
8835:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide