IBM 8649 Hardware Maintenance Manual - Page 69

microprocessor-release

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b. Slide the adapter airflow guide out of the guides on the air baffle and front adapter-support bracket; then, remove it from the chassis. 7. Remove the air baffle by unhooking it from its retaining tabs and lifting it off the chassis. 8. Locate the second microprocessor socket (connector CPU2) on the system board. 9. Remove the microprocessor baffle from the second microprocessor socket. 10. If the second microprocessor socket is covered with protective film, peel and remove the film. 11. Install the microprocessor: a. Touch the static-protective package containing the new microprocessor to any unpainted metal surface on the server; then, remove the microprocessor from the package. b. Pull out and lift up on the microprocessor-release lever to unlock the microprocessor socket. Attention: 1) Do not use excessive force when pressing the microprocessor into the socket. 2) Make sure that the microprocessor is oriented and aligned correctly with pin number 1 in the socket before you try to close the microprocessor-release lever. The following illustration shows the alignment marks for both microprocessors and sockets. Alignment marks Microprocessor 1 Microprocessor 2 Alignment marks Microprocessor socket 2 Microprocessor socket 1 c. Center the microprocessor over the microprocessor socket. Align the triangle on the corner of the microprocessor with the triangle on the corner of the socket and carefully press the microprocessor into the socket. d. Carefully close the microprocessor-release lever to secure the microprocessor in the socket. Attention: Do not set the heat sink down after you remove the plastic cover and do not touch the thermal grease on the bottom of the heat sink. Touching the thermal grease will contaminate it. If the thermal grease on the microprocessor or heat sink becomes contaminated, contact your service technician. Chapter 4. Installing options 59

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b.
Slide
the
adapter
airflow
guide
out
of
the
guides
on
the
air
baffle
and
front
adapter-support
bracket;
then,
remove
it
from
the
chassis.
7.
Remove
the
air
baffle
by
unhooking
it
from
its
retaining
tabs
and
lifting
it
off
the
chassis.
8.
Locate
the
second
microprocessor
socket
(connector
CPU2)
on
the
system
board.
9.
Remove
the
microprocessor
baffle
from
the
second
microprocessor
socket.
10.
If
the
second
microprocessor
socket
is
covered
with
protective
film,
peel
and
remove
the
film.
11.
Install
the
microprocessor:
a.
Touch
the
static-protective
package
containing
the
new
microprocessor
to
any
unpainted
metal
surface
on
the
server;
then,
remove
the
microprocessor
from
the
package.
b.
Pull
out
and
lift
up
on
the
microprocessor-release
lever
to
unlock
the
microprocessor
socket.
Attention:
1)
Do
not
use
excessive
force
when
pressing
the
microprocessor
into
the
socket.
2)
Make
sure
that
the
microprocessor
is
oriented
and
aligned
correctly
with
pin
number
1
in
the
socket
before
you
try
to
close
the
microprocessor-release
lever.
The
following
illustration
shows
the
alignment
marks
for
both
microprocessors
and
sockets.
Microprocessor 2
Microprocessor 1
Microprocessor
socket 2
Microprocessor
socket 1
Alignment marks
Alignment marks
c.
Center
the
microprocessor
over
the
microprocessor
socket.
Align
the
triangle
on
the
corner
of
the
microprocessor
with
the
triangle
on
the
corner
of
the
socket
and
carefully
press
the
microprocessor
into
the
socket.
d.
Carefully
close
the
microprocessor-release
lever
to
secure
the
microprocessor
in
the
socket.
Attention:
Do
not
set
the
heat
sink
down
after
you
remove
the
plastic
cover
and
do
not
touch
the
thermal
grease
on
the
bottom
of
the
heat
sink.
Touching
the
thermal
grease
will
contaminate
it.
If
the
thermal
grease
on
the
microprocessor
or
heat
sink
becomes
contaminated,
contact
your
service
technician.
Chapter
4.
Installing
options
59