IBM 8649 Hardware Maintenance Manual - Page 99

Removing, system, board

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14. Replace the side cover (see "Replacing the side cover" on page 67). 15. Reconnect the external cables and power cords; then, turn on the attached devices and the server. Removing the system board Before you begin: v Read "Safety information" on page 129 v Review the information in "System reliability considerations" on page 33 Notes: 1. When replacing the system board, you must either update the system with the latest firmware or restore the pre-existing firmware that the customer provides on a diskette or CD image. 2. It is recommended that the server be placed on its left side before performing this service procedure. Rotate the feet in toward the server so they do not detach due to the weight of the server. To remove the system board, complete the following steps: 1. Turn off the server, if it is on. 2. Unplug the server and disconnect the power cord; then, disconnect all external cables. 3. Remove the side cover. See "Removing the side cover" on page 36 4. Remove the front bezel. See "Removing the bezel" on page 37 5. Remove the frame-support bracket. See "Removing and installing the support bracket" on page 38 6. Disconnect the cables. 7. Remove both adapter-retaining brackets and the adapters (see "Installing an adapter" on page 40). 8. Remove the air flow guide and the air baffles from over the microprocessor. 9. Remove memory modules. See "Installing memory modules" on page 55 10. Remove the mini-PCI video adapter. See "Mini-PCI video adapter" on page 86 11. Remove the microprocessor. See "Microprocessor and heat sink" on page 77 Chapter 5. Field replaceable units 89

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14.
Replace
the
side
cover
(see
“Replacing
the
side
cover”
on
page
67).
15.
Reconnect
the
external
cables
and
power
cords;
then,
turn
on
the
attached
devices
and
the
server.
Removing
the
system
board
Before
you
begin:
v
Read
“Safety
information”
on
page
129
v
Review
the
information
in
“System
reliability
considerations”
on
page
33
Notes:
1.
When
replacing
the
system
board,
you
must
either
update
the
system
with
the
latest
firmware
or
restore
the
pre-existing
firmware
that
the
customer
provides
on
a
diskette
or
CD
image.
2.
It
is
recommended
that
the
server
be
placed
on
its
left
side
before
performing
this
service
procedure.
Rotate
the
feet
in
toward
the
server
so
they
do
not
detach
due
to
the
weight
of
the
server.
To
remove
the
system
board,
complete
the
following
steps:
1.
Turn
off
the
server,
if
it
is
on.
2.
Unplug
the
server
and
disconnect
the
power
cord;
then,
disconnect
all
external
cables.
3.
Remove
the
side
cover.
See
“Removing
the
side
cover”
on
page
36
4.
Remove
the
front
bezel.
See
“Removing
the
bezel”
on
page
37
5.
Remove
the
frame-support
bracket.
See
“Removing
and
installing
the
support
bracket”
on
page
38
6.
Disconnect
the
cables.
7.
Remove
both
adapter-retaining
brackets
and
the
adapters
(see
“Installing
an
adapter”
on
page
40).
8.
Remove
the
air
flow
guide
and
the
air
baffles
from
over
the
microprocessor.
9.
Remove
memory
modules.
See
“Installing
memory
modules”
on
page
55
10.
Remove
the
mini-PCI
video
adapter.
See
“Mini-PCI
video
adapter”
on
page
86
11.
Remove
the
microprocessor.
See
“Microprocessor
and
heat
sink”
on
page
77
Chapter
5.
Field
replaceable
units
89