IBM 88410EU User Manual - Page 86

System, board

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System board Complete the following steps to remove the system board. Note: v Read "Installation guidelines" on page 11. v Read Appendix B, "Safety information," on page 153. v Read "Handling static-sensitive devices" on page 12. 1. Turn off the server and any attached devices. Note: 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. Disconnect external cables and option cables from the back of the server. 3. Lay the server so that the cover is facing up. 4. Remove the left-side cover (see "Removing the left-side cover" on page 14). 5. Disconnect and remove adapters and spacers (see "Installing or replacing an adapter" on page 25). 6. Remove the center-fan and adapter support bracket (see "Center-fan and adapter-support bracket" on page 67). 7. Remove the air-baffle. 8. Disconnect all cables from the system board. Note: Place all disconnected cables carefully to the side so that they do not come in contact with the center of the system board. 9. Remove all microprocessors and VRMs and set them aside on a static-protected surface for reinstallation (see "Microprocessor removal" on page 56). 10. Remove the memory modules and set them aside on a static-protected surface for reinstallation (see "Installing memory modules" on page 33). Note: When you set the DIMMs aside, be sure to keep track of the slots they belong to; DIMMs must be installed in pairs of the same size, speed, type, and technology. 76 xSeries 236 Type 8841: Hardware Maintenance Manual and Troubleshooting Guide

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System
board
Complete
the
following
steps
to
remove
the
system
board.
Note:
v
Read
“Installation
guidelines”
on
page
11.
v
Read
Appendix
B,
“Safety
information,”
on
page
153.
v
Read
“Handling
static-sensitive
devices”
on
page
12.
1.
Turn
off
the
server
and
any
attached
devices.
Note:
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.
Disconnect
external
cables
and
option
cables
from
the
back
of
the
server.
3.
Lay
the
server
so
that
the
cover
is
facing
up.
4.
Remove
the
left-side
cover
(see
“Removing
the
left-side
cover”
on
page
14).
5.
Disconnect
and
remove
adapters
and
spacers
(see
“Installing
or
replacing
an
adapter”
on
page
25).
6.
Remove
the
center-fan
and
adapter
support
bracket
(see
“Center-fan
and
adapter-support
bracket”
on
page
67).
7.
Remove
the
air-baffle.
8.
Disconnect
all
cables
from
the
system
board.
Note:
Place
all
disconnected
cables
carefully
to
the
side
so
that
they
do
not
come
in
contact
with
the
center
of
the
system
board.
9.
Remove
all
microprocessors
and
VRMs
and
set
them
aside
on
a
static-protected
surface
for
reinstallation
(see
“Microprocessor
removal”
on
page
56).
10.
Remove
the
memory
modules
and
set
them
aside
on
a
static-protected
surface
for
reinstallation
(see
“Installing
memory
modules”
on
page
33).
Note:
When
you
set
the
DIMMs
aside,
be
sure
to
keep
track
of
the
slots
they
belong
to;
DIMMs
must
be
installed
in
pairs
of
the
same
size,
speed,
type,
and
technology.
76
xSeries
236
Type
8841:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide