IBM 4800-741 Hardware Service Guide - Page 64

procedures.

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Updated July 14, 2008 M N Figure 34. Heat sink and processor Models 7x1 5. Locate the heat sink latches on each side of the heat sink. 6. Press down to unlock each latch and then lift upward on the heat sink ( M ) to remove. Note: When the heat sink is removed, you can locate the processor ( N ) 7. See Figure 34. Press down on the processor latch, and move sideways and up to unlock. Lift out the processor, carefully keeping your fingers on each side of the module. 8. Go to step 10. Models 7x2 9. Loosen the four captured screws to remove the heat sink. All Models 10. To replace the processor and heat sink, reverse these procedures. Note: Models 742 and 782 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. 46 SurePOS 700 Series: SurePOS 700-721/741/781, 722/742/782 Hardware Service Guide

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Models
7x1
5.
Locate
the
heat
sink
latches
on
each
side
of
the
heat
sink.
6.
Press
down
to
unlock
each
latch
and
then
lift
upward
on
the
heat
sink
(
±M²
)
to
remove.
Note:
When
the
heat
sink
is
removed,
you
can
locate
the
processor
(
±N²
)
7.
See
Figure
34.
Press
down
on
the
processor
latch,
and
move
sideways
and
up
to
unlock.
Lift
out
the
processor,
carefully
keeping
your
fingers
on
each
side
of
the
module.
8.
Go
to
step
10.
Models
7x2
9.
Loosen
the
four
captured
screws
to
remove
the
heat
sink.
All
Models
10.
To
replace
the
processor
and
heat
sink,
reverse
these
procedures.
Note:
Models
742
and
782
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.
M
N
Figure
34.
Heat
sink
and
processor
Updated
July
14,
2008
46
SurePOS
700
Series:
SurePOS
700-721/741/781,
722/742/782
Hardware
Service
Guide