IBM 4846-545 Service Guide - Page 76

Processor, module, removing, replacing

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Removing and replacing FRUs Processor module - removing and replacing Note: The processor and fan sink come as one FRU. Do not use the old fan sink when replacing the processor. Attention: Establish personal grounding before touching this unit. See "Electrostatic Discharge (ESD)" on page 130. The LGA 775 CPU socket contains very finely pitched pins. You must take care when servicing the CPU as any damage to the socket results in a non-functional system board. Be sure to use the section cup tool provided with the FRU 1. Switch OFF the power to the SurePOS 500. Unplug the power cord from the external power source. 2. Remove the rear cover as described at "Rear cover removal" on page 30. 3. Remove the power supply as described in "Power supply - removing and replacing" on page 45. 4. Remove the tailgate as described in "Rear connector panel (tailgate) - removing and replacing" on page 47. Attention: The SurePOS Models 545 and 565 contain a LGA 775 CPU socket. This socket contains very finely pitched pins. You must take care when servicing the CPU as any damage to the socket results in a non-functional system board. Be sure to use the section cup tool provided with the FRU processor. 5. Remove the processor fan/heatsink assembly as described in "Processor fan/heatsink assembly - removing and replacing" on page 53. Note: Examine the thermal interface on the new heatsink. If the thermal interface is damaged, replace the heatsink. 6. Release the latch and carefully remove the processor from the system board. 7. To replace, reverse these procedures. 54 Models 545 and 565 Hardware Service Guide

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Processor
module
–
removing
and
replacing
Note:
The
processor
and
fan
sink
come
as
one
FRU.
Do
not
use
the
old
fan
sink
when
replacing
the
processor.
Attention:
Establish
personal
grounding
before
touching
this
unit.
See
“Electrostatic
Discharge
(ESD)”
on
page
130.
The
LGA
775
CPU
socket
contains
very
finely
pitched
pins.
You
must
take
care
when
servicing
the
CPU
as
any
damage
to
the
socket
results
in
a
non-functional
system
board.
Be
sure
to
use
the
section
cup
tool
provided
with
the
FRU
1.
Switch
OFF
the
power
to
the
SurePOS
500.
Unplug
the
power
cord
from
the
external
power
source.
2.
Remove
the
rear
cover
as
described
at
“Rear
cover
removal”
on
page
30.
3.
Remove
the
power
supply
as
described
in
“Power
supply
–
removing
and
replacing”
on
page
45.
4.
Remove
the
tailgate
as
described
in
“Rear
connector
panel
(tailgate)
–
removing
and
replacing”
on
page
47.
Attention:
The
SurePOS
Models
545
and
565
contain
a
LGA
775
CPU
socket.
This
socket
contains
very
finely
pitched
pins.
You
must
take
care
when
servicing
the
CPU
as
any
damage
to
the
socket
results
in
a
non-functional
system
board.
Be
sure
to
use
the
section
cup
tool
provided
with
the
FRU
processor.
5.
Remove
the
processor
fan/heatsink
assembly
as
described
in
“Processor
fan/heatsink
assembly
-
removing
and
replacing”
on
page
53.
Note:
Examine
the
thermal
interface
on
the
new
heatsink.
If
the
thermal
interface
is
damaged,
replace
the
heatsink.
6.
Release
the
latch
and
carefully
remove
the
processor
from
the
system
board.
7.
To
replace,
reverse
these
procedures.
Removing
and
replacing
FRUs
54
Models
545
and
565
Hardware
Service
Guide