IBM 8649 Hardware Maintenance Manual - Page 70

microprocessor

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12. Install the heat sink on the microprocessor. Thermal grease Heat sink a. Remove the plastic cover from the bottom of the heat sink. b. Align and place the heat sink on top of the microprocessor, grease side down, in the retention bracket. Press firmly on the heat sink. Attention: Alternate the tightening of the two captive screws to prevent damage to the microprocessor. Ensure that the screws are completely tightened (until they stop); otherwise, damage to the microprocessor will occur. c. Secure the heat sink to the microprocessor by tightening the captive screws. Alternate between the two captive screws in the heat sink while tightening them. 13. Install the air baffle. 14. Install the adapter airflow guide: a. Rotate the front and rear adapter-retention brackets to the open (unlocked) position. b. Slide the adapter airflow guide into the guides on the air baffle and front adapter-support bracket; then, push it into place, using care to not damage any cables. c. Rotate the front and rear adapter-retention brackets to the closed (locked) position. 15. If you have other options to install or remove, do so now. 16. Replace the support bracket (see "Removing and installing the support bracket" on page 38). 17. Replace the side cover (see "Replacing the bezel" on page 66). 18. Reconnect the external cables and power cords. Turn on the attached devices, and turn on the server. 60 IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

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12.
Install
the
heat
sink
on
the
microprocessor.
Heat sink
Thermal grease
a.
Remove
the
plastic
cover
from
the
bottom
of
the
heat
sink.
b.
Align
and
place
the
heat
sink
on
top
of
the
microprocessor,
grease
side
down,
in
the
retention
bracket.
Press
firmly
on
the
heat
sink.
Attention:
Alternate
the
tightening
of
the
two
captive
screws
to
prevent
damage
to
the
microprocessor.
Ensure
that
the
screws
are
completely
tightened
(until
they
stop);
otherwise,
damage
to
the
microprocessor
will
occur.
c.
Secure
the
heat
sink
to
the
microprocessor
by
tightening
the
captive
screws.
Alternate
between
the
two
captive
screws
in
the
heat
sink
while
tightening
them.
13.
Install
the
air
baffle.
14.
Install
the
adapter
airflow
guide:
a.
Rotate
the
front
and
rear
adapter-retention
brackets
to
the
open
(unlocked)
position.
b.
Slide
the
adapter
airflow
guide
into
the
guides
on
the
air
baffle
and
front
adapter-support
bracket;
then,
push
it
into
place,
using
care
to
not
damage
any
cables.
c.
Rotate
the
front
and
rear
adapter-retention
brackets
to
the
closed
(locked)
position.
15.
If
you
have
other
options
to
install
or
remove,
do
so
now.
16.
Replace
the
support
bracket
(see
“Removing
and
installing
the
support
bracket”
on
page
38).
17.
Replace
the
side
cover
(see
“Replacing
the
bezel”
on
page
66).
18.
Reconnect
the
external
cables
and
power
cords.
Turn
on
the
attached
devices,
and
turn
on
the
server.
60
IBM
xSeries
225
Types
8649:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide