IBM 887022X Maintenance Manual - Page 247

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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. Option problems Symptom FRU/action An IBM option that used to work 1. Verify that all of the option hardware and cable connections are secure. does not work now. 2. If the option comes with its own test instructions, use those instructions to test the option. 3. If the failing option is a SCSI option, verify that: v The cables for all external SCSI options are connected correctly. v The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly. v Any external SCSI option is turned on. You must turn on an external SCSI option before turning on the computer. 4. Failing option. 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. Power problems Symptom FRU/action Power switch does not work and reset button, if supported, does work. 1. Reseat connector. 2. Power switch card. 3. I/O board. The server does not turn on. Note: The xSeries 445 server requires a 220 V power connection for full power-supply redundancy. Whenever possible, use a 220 V connection for all configurations. However, you can use a 110 V connection without power-supply redundancy. 1. Verify that: v The power cables are properly connected to the computer. v The electrical outlet functions properly. v The type of memory installed is correct. v If you just installed an option, remove it, and restart the computer. If the computer now turns on, you might have installed more options than the power supply supports. v The LEDs on the power supply are on. v Verify that microprocessors are installed in the correct sequence. 2. Override front panel power button: a. Disconnect server power cords. b. Reconnect power cords. If computer turns on: v Operator information panel If computer does not turn on, see "Power LED errors" on page 240. 3. See "Undetermined problems" on page 246. The server does not turn off. 1. Verify whether you are using an ACPI or non-ACPI operating system. If you are using a non-ACPI operating system: a. Press Ctrl+Alt+Delete. b. Turn off the system by holding the power-control button for 4 seconds. c. If computer fails during BIOS POST and power-control button does not work, remove the ac power cord. 2. If the problem remains or if you are using an ACPI-aware operating system, suspect the I/O board. Chapter 7. Symptom-to-FRU index 237

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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.
Option
problems
Symptom
FRU/action
An
IBM
option
that
used
to
work
does
not
work
now.
1.
Verify
that
all
of
the
option
hardware
and
cable
connections
are
secure.
2.
If
the
option
comes
with
its
own
test
instructions,
use
those
instructions
to
test
the
option.
3.
If
the
failing
option
is
a
SCSI
option,
verify
that:
v
The
cables
for
all
external
SCSI
options
are
connected
correctly.
v
The
last
option
in
each
SCSI
chain,
or
the
end
of
the
SCSI
cable,
is
terminated
correctly.
v
Any
external
SCSI
option
is
turned
on.
You
must
turn
on
an
external
SCSI
option
before
turning
on
the
computer.
4.
Failing
option.
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.
Power
problems
Symptom
FRU/action
Power
switch
does
not
work
and
reset
button,
if
supported,
does
work.
1.
Reseat
connector.
2.
Power
switch
card.
3.
I/O
board.
The
server
does
not
turn
on.
Note:
The
xSeries
445
server
requires
a
220
V
power
connection
for
full
power-supply
redundancy.
Whenever
possible,
use
a
220
V
connection
for
all
configurations.
However,
you
can
use
a
110
V
connection
without
power-supply
redundancy.
1.
Verify
that:
v
The
power
cables
are
properly
connected
to
the
computer.
v
The
electrical
outlet
functions
properly.
v
The
type
of
memory
installed
is
correct.
v
If
you
just
installed
an
option,
remove
it,
and
restart
the
computer.
If
the
computer
now
turns
on,
you
might
have
installed
more
options
than
the
power
supply
supports.
v
The
LEDs
on
the
power
supply
are
on.
v
Verify
that
microprocessors
are
installed
in
the
correct
sequence.
2.
Override
front
panel
power
button:
a.
Disconnect
server
power
cords.
b.
Reconnect
power
cords.
If
computer
turns
on:
v
Operator
information
panel
If
computer
does
not
turn
on,
see
“Power
LED
errors”
on
page
240.
3.
See
“Undetermined
problems”
on
page
246.
The
server
does
not
turn
off.
1.
Verify
whether
you
are
using
an
ACPI
or
non-ACPI
operating
system.
If
you
are
using
a
non-ACPI
operating
system:
a.
Press
Ctrl+Alt+Delete.
b.
Turn
off
the
system
by
holding
the
power-control
button
for
4
seconds.
c.
If
computer
fails
during
BIOS
POST
and
power-control
button
does
not
work,
remove
the
ac
power
cord.
2.
If
the
problem
remains
or
if
you
are
using
an
ACPI-aware
operating
system,
suspect
the
I/O
board.
Chapter
7.
Symptom-to-FRU
index
237