IBM 8840 Hardware Maintenance Manual - Page 56

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Alignment marks Microprocessor 2 Microprocessor 1 Lock tab Microprocessor socket 2 Microprocessor socket 1 e. Carefully close the locking lever to secure the microprocessor in the socket. 8. Install a heat sink on the microprocessor. Attention: v Do not set down the heat sink after you remove the plastic cover. Thermal grease Heat sink v Do not touch the thermal grease on the bottom of the heat sink or set down the heat sink. Touching the thermal grease will contaminate it. For details, see the information about thermal grease on page 42. a. Remove the plastic protective cover from the bottom of the heat sink. b. Make sure that the heat-sink lever is in the open position. c. Align the heat sink above the microprocessor with the thermal grease side down. Press firmly on the heat sink. 46 xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide

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Microprocessor
socket 2
Microprocessor 2
Microprocessor
socket 1
Microprocessor 1
Alignment marks
Lock tab
e.
Carefully
close
the
locking
lever
to
secure
the
microprocessor
in
the
socket.
8.
Install
a
heat
sink
on
the
microprocessor.
Attention:
v
Do
not
set
down
the
heat
sink
after
you
remove
the
plastic
cover.
Thermal grease
Heat sink
v
Do
not
touch
the
thermal
grease
on
the
bottom
of
the
heat
sink
or
set
down
the
heat
sink.
Touching
the
thermal
grease
will
contaminate
it.
For
details,
see
the
information
about
thermal
grease
on
page
42.
a.
Remove
the
plastic
protective
cover
from
the
bottom
of
the
heat
sink.
b.
Make
sure
that
the
heat-sink
lever
is
in
the
open
position.
c.
Align
the
heat
sink
above
the
microprocessor
with
the
thermal
grease
side
down.
Press
firmly
on
the
heat
sink.
46
xSeries
346
Types
8840
and
1880:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide