IBM 4840-544 Service Guide - Page 91

System, board, removing, replacing

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August 3, 2006 System board System board - removing and replacing Attention: Establish personal grounding before touching this unit. See "Electrostatic discharge (ESD)" on page 197. Notes: 1. The new 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. 2. Later versions of power supply keep the fan running when the system is connected to power, but has been powered Off. This is normal operation. Remove the system board 1. Switch OFF the power to the SurePOS 500 Models 5x3 and 544/564. Unplug the power cord from the external power source. 2. Remove the back cover as described at "Rear cover - removing and replacing" on page 38. 3. Open the side panel door. 4. Remove the power supply. See "Power supply - removing and replacing" on page 57. 5. Remove the rear inner metal cover. See "Rear inner metal cover - removing and replacing" on page 78. 6. Disconnect all cables from the system board. 7. Remove the rear connector panel (tailgate). See "Rear connector panel (tailgate) - removing and replacing" on page 76. 8. Remove the cooling duct. See "Cooling duct - removing and replacing" on page 64. 9. Remove the five screws, as shown in Figure 45 on page 66. 10. Grasp the entire assembly by the fansink and slide it out toward the top. Transfer modules to the new system board Place the assembly on a table and remove the following parts: v Memory modules - See "Memory modules - removing and replacing" on page 72. v Fansink - See "Fansink - removing and replacing" on page 69. v Processor - See "Processor module - removing and replacing" on page 71. v Dual video adapter, if installed. See "Dual-video adapter - removing and replacing" on page 62. Remove jumpers JP29-JP35 from the system board for dual video adapter installation. Install these parts on the new system board. The new system board comes with all required jumpers and with a new battery. Install the new system board Perform the system board removal steps, in reverse order. Update system software 1. Ensure system BIOS is equal to or greater than that from the old system board. See "Updating the flash BIOS" on page 22. 2. Reprogram the Vital Product Data (VPD). a. Boot the service diskette. Chapter 4. Removing and replacing FRUs for the SurePOS 500 Models 5x3 and 544/564 65

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System
board
–
removing
and
replacing
Attention:
Establish
personal
grounding
before
touching
this
unit.
See
“Electrostatic
discharge
(ESD)”
on
page
197.
Notes:
1.
The
new
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.
2.
Later
versions
of
power
supply
keep
the
fan
running
when
the
system
is
connected
to
power,
but
has
been
powered
Off.
This
is
normal
operation.
Remove
the
system
board
1.
Switch
OFF
the
power
to
the
SurePOS
500
Models
5x3
and
544/564.
Unplug
the
power
cord
from
the
external
power
source.
2.
Remove
the
back
cover
as
described
at
“Rear
cover
–
removing
and
replacing”
on
page
38.
3.
Open
the
side
panel
door.
4.
Remove
the
power
supply.
See
“Power
supply
–
removing
and
replacing”
on
page
57.
5.
Remove
the
rear
inner
metal
cover.
See
“Rear
inner
metal
cover
–
removing
and
replacing”
on
page
78.
6.
Disconnect
all
cables
from
the
system
board.
7.
Remove
the
rear
connector
panel
(tailgate).
See
“Rear
connector
panel
(tailgate)
–
removing
and
replacing”
on
page
76.
8.
Remove
the
cooling
duct.
See
“Cooling
duct
–
removing
and
replacing”
on
page
64.
9.
Remove
the
five
screws,
as
shown
in
Figure
45
on
page
66.
10.
Grasp
the
entire
assembly
by
the
fansink
and
slide
it
out
toward
the
top.
Transfer
modules
to
the
new
system
board
Place
the
assembly
on
a
table
and
remove
the
following
parts:
v
Memory
modules
–
See
“Memory
modules
–
removing
and
replacing”
on
page
72.
v
Fansink
–
See
“Fansink
–
removing
and
replacing”
on
page
69.
v
Processor
–
See
“Processor
module
–
removing
and
replacing”
on
page
71.
v
Dual
video
adapter,
if
installed.
See
“Dual-video
adapter
–
removing
and
replacing”
on
page
62.
Remove
jumpers
JP29–JP35
from
the
system
board
for
dual
video
adapter
installation.
Install
these
parts
on
the
new
system
board.
The
new
system
board
comes
with
all
required
jumpers
and
with
a
new
battery.
Install
the
new
system
board
Perform
the
system
board
removal
steps,
in
reverse
order.
Update
system
software
1.
Ensure
system
BIOS
is
equal
to
or
greater
than
that
from
the
old
system
board.
See
“Updating
the
flash
BIOS”
on
page
22.
2.
Reprogram
the
Vital
Product
Data
(VPD).
a.
Boot
the
service
diskette.
System
board
August
3,
2006
Chapter
4.
Removing
and
replacing
FRUs
for
the
SurePOS
500
Models
5x3
and
544/564
65