IBM 4851 514 Service Guide - Page 82

System, board, removing, replacing

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Removing and replacing FRUs Updated October, 2008 7. Replace the rear inner metal cover and rear cover. System board - removing and replacing Attention: Establish personal grounding before touching this unit. See "Electrostatic Discharge (ESD)" on page 119. Notes: 1. The system board comes with factory default CMOS settings. When replacing the system board, you can usually save the CMOS settings by running the SaveCMOS utility before replacing the old system board. Then, run LoadCMOS after the installation of the new system board. 1. Remove the back cover as described at "Rear cover - removing and replacing" on page 61. 2. Remove the power supply. See "Power supply - removing and replacing" on page 68. 3. Remove the inner back metal cover. See "Rear metal panel cover - removing and replacing" on page 62. 4. Remove the rear connector panel (tailgate). See "Rear connector panel (tailgate) with fan - removing and replacing" on page 64. 5. Disconnect all cables from the system board. 6. Remove the memory modules. See "Memory modules - removing and replacing" on page 68. Note: Save the modules for transfer to the new system board. Figure 51. Removing the system board 66 SurePOS 500 Model 514

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7.
Replace
the
rear
inner
metal
cover
and
rear
cover.
System
board
–
removing
and
replacing
Attention:
Establish
personal
grounding
before
touching
this
unit.
See
“Electrostatic
Discharge
(ESD)”
on
page
119.
Notes:
1.
The
system
board
comes
with
factory
default
CMOS
settings.
When
replacing
the
system
board,
you
can
usually
save
the
CMOS
settings
by
running
the
SaveCMOS
utility
before
replacing
the
old
system
board.
Then,
run
LoadCMOS
after
the
installation
of
the
new
system
board.
1.
Remove
the
back
cover
as
described
at
“Rear
cover
–
removing
and
replacing”
on
page
61.
2.
Remove
the
power
supply.
See
“Power
supply
–
removing
and
replacing”
on
page
68.
3.
Remove
the
inner
back
metal
cover.
See
“Rear
metal
panel
cover
–
removing
and
replacing”
on
page
62.
4.
Remove
the
rear
connector
panel
(tailgate).
See
“Rear
connector
panel
(tailgate)
with
fan
–
removing
and
replacing”
on
page
64.
5.
Disconnect
all
cables
from
the
system
board.
6.
Remove
the
memory
modules.
See
“Memory
modules
–
removing
and
replacing”
on
page
68.
Note:
Save
the
modules
for
transfer
to
the
new
system
board.
Figure
51.
Removing
the
system
board
Removing
and
replacing
FRUs
Updated
October,
2008
66
SurePOS
500
Model
514