IBM 8478 Hardware Maintenance Manual - Page 75

Removing, microprocessor

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Removing a microprocessor Complete the following steps to remove a microprocessor. Microprocessor connector Microprocessor Heat sink Heat sink retainer Lever Microprocessor orientation indicator Attention: When you handle ESD-sensitive devices, take precautions to avoid damage from static electricity. For details on handling these devices, see "Handling static-sensitive devices" on page 45. 1. Review the safety precautions listed in "Safety information" on page 125. 2. Turn off the server and peripheral devices and disconnect all external cables and power cords; then, remove the cover (see "Removing the side cover" on page 46 for details). 3. Remove the support bracket assembly and disconnect the fan cable from the connector (SYSFA3) on the system board. See "Removing the support bracket assembly" on page 49 and "System board internal cable connectors" on page 42 for the location of the fan cable connector. 4. Push down and back on the heat-sink retainer to remove it from the heat sink. 5. Firmly grasp the heat sink and lift it off the microprocessor. Note: Once you remove the heat sink from the microprocessor, you must replace it with a new device. Pull out and lift up the release lever and remove the Chapter 5. Installing options 65

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Removing
a
microprocessor
Complete
the
following
steps
to
remove
a
microprocessor.
Microprocessor
Microprocessor
connector
Microprocessor
orientation indicator
Lever
Heat sink
retainer
Heat sink
Attention:
When
you
handle
ESD-sensitive
devices,
take
precautions
to
avoid
damage
from
static
electricity.
For
details
on
handling
these
devices,
see
“Handling
static-sensitive
devices”
on
page
45.
1.
Review
the
safety
precautions
listed
in
“Safety
information”
on
page
125.
2.
Turn
off
the
server
and
peripheral
devices
and
disconnect
all
external
cables
and
power
cords;
then,
remove
the
cover
(see
“Removing
the
side
cover”
on
page
46
for
details).
3.
Remove
the
support
bracket
assembly
and
disconnect
the
fan
cable
from
the
connector
(SYSFA3)
on
the
system
board.
See
“Removing
the
support
bracket
assembly”
on
page
49
and
“System
board
internal
cable
connectors”
on
page
42
for
the
location
of
the
fan
cable
connector.
4.
Push
down
and
back
on
the
heat-sink
retainer
to
remove
it
from
the
heat
sink.
5.
Firmly
grasp
the
heat
sink
and
lift
it
off
the
microprocessor.
Note:
Once
you
remove
the
heat
sink
from
the
microprocessor,
you
must
replace
it
with
a
new
device.
Pull
out
and
lift
up
the
release
lever
and
remove
the
Chapter
5.
Installing
options
65