IBM 887022X Maintenance Manual - Page 242

CRU/FRU

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Note: See Chapter 8, "Parts listing, Type 8870," on page 249 to determine which components are replaceable by the customer, and which components should be replaced by an IBM field service technician. General problems Symptom FRU/action Problems such as broken cover v Broken CRU/FRU locks or indicator LEDs not working Note: See Chapter 8, "Parts listing, Type 8870," on page 249 to determine which components are replaceable by the customer, and which components should be replaced by an IBM field service technician. Intermittent problems Symptom FRU/action A problem occurs only occasionally and is difficult to detect. 1. Verify that: v All cables and cords are connected securely to the rear of the server and attached options. v When the server is turned on, air is flowing from the rear of the server at the fan grill. If there is no airflow, the fan is not working. This causes the computer to overheat and shut down. v Ensure that the SCSI bus and devices are configured correctly and that the last external device in each SCSI chain is terminated correctly. 2. Check the system error log. Note: See Chapter 8, "Parts listing, Type 8870," on page 249 to determine which components are replaceable by the customer, and which components should be replaced by an IBM field service technician. Keyboard, mouse, or pointing-device problems (non-USB) Symptom FRU/action All or some keys on the keyboard do not work. 1. Verify that: v The keyboard cable is securely connected to the system, and the keyboard and mouse cables are not reversed. v Both the server and the monitor are turned on. 2. Keyboard. 3. Center plane. 4. I/O board. Note: When two servers are connected in a 16-way configuration, the DVD-ROM drive, diskette drive, keyboard, USB ports (except for Remote Supervisor Adapter II-EXA functionality), mouse, and video are disabled on the secondary server. The mouse or pointing device does not work. 1. Verify that: v The mouse or pointing-device cable is securely connected, and that the keyboard and mouse cables are not reversed. v The mouse device drivers are installed correctly. v Both the computer and the monitor are turned on. 2. Mouse or pointing device. 3. Center plane. 4. I/O board. Note: When two servers are connected in a 16-way configuration, the DVD-ROM drive, diskette drive, keyboard, USB ports (except for Remote Supervisor Adapter II-EXA functionality), mouse, and video are disabled on the secondary server. 232 xSeries 445 Type 8870: Hardware Maintenance Manual and Troubleshooting Guide

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Note:
See
Chapter
8,
“Parts
listing,
Type
8870,”
on
page
249
to
determine
which
components
are
replaceable
by
the
customer,
and
which
components
should
be
replaced
by
an
IBM
field
service
technician.
General
problems
Symptom
FRU/action
Problems
such
as
broken
cover
locks
or
indicator
LEDs
not
working
v
Broken
CRU/FRU
Note:
See
Chapter
8,
“Parts
listing,
Type
8870,”
on
page
249
to
determine
which
components
are
replaceable
by
the
customer,
and
which
components
should
be
replaced
by
an
IBM
field
service
technician.
Intermittent
problems
Symptom
FRU/action
A
problem
occurs
only
occasionally
and
is
difficult
to
detect.
1.
Verify
that:
v
All
cables
and
cords
are
connected
securely
to
the
rear
of
the
server
and
attached
options.
v
When
the
server
is
turned
on,
air
is
flowing
from
the
rear
of
the
server
at
the
fan
grill.
If
there
is
no
airflow,
the
fan
is
not
working.
This
causes
the
computer
to
overheat
and
shut
down.
v
Ensure
that
the
SCSI
bus
and
devices
are
configured
correctly
and
that
the
last
external
device
in
each
SCSI
chain
is
terminated
correctly.
2.
Check
the
system
error
log.
Note:
See
Chapter
8,
“Parts
listing,
Type
8870,”
on
page
249
to
determine
which
components
are
replaceable
by
the
customer,
and
which
components
should
be
replaced
by
an
IBM
field
service
technician.
Keyboard,
mouse,
or
pointing-device
problems
(non-USB)
Symptom
FRU/action
All
or
some
keys
on
the
keyboard
do
not
work.
1.
Verify
that:
v
The
keyboard
cable
is
securely
connected
to
the
system,
and
the
keyboard
and
mouse
cables
are
not
reversed.
v
Both
the
server
and
the
monitor
are
turned
on.
2.
Keyboard.
3.
Center
plane.
4.
I/O
board.
Note:
When
two
servers
are
connected
in
a
16-way
configuration,
the
DVD-ROM
drive,
diskette
drive,
keyboard,
USB
ports
(except
for
Remote
Supervisor
Adapter
II-EXA
functionality),
mouse,
and
video
are
disabled
on
the
secondary
server.
The
mouse
or
pointing
device
does
not
work.
1.
Verify
that:
v
The
mouse
or
pointing-device
cable
is
securely
connected,
and
that
the
keyboard
and
mouse
cables
are
not
reversed.
v
The
mouse
device
drivers
are
installed
correctly.
v
Both
the
computer
and
the
monitor
are
turned
on.
2.
Mouse
or
pointing
device.
3.
Center
plane.
4.
I/O
board.
Note:
When
two
servers
are
connected
in
a
16-way
configuration,
the
DVD-ROM
drive,
diskette
drive,
keyboard,
USB
ports
(except
for
Remote
Supervisor
Adapter
II-EXA
functionality),
mouse,
and
video
are
disabled
on
the
secondary
server.
232
xSeries
445
Type
8870:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide