IBM 8863 Service Guide - Page 62

Serial, problems

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v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 3, "Parts listing, Type 8863," on page 93 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)", that step must be performed only by a trained service technician. Symptom Action The server does not turn off. 1. Determine whether you are using an Advanced Configuration and Power Management (ACPI) or a non-ACPI operating system. If you are using a non-ACPI operating system, complete the following steps: a. Press Ctrl+Alt+Delete. b. Turn off the server by holding the power-control button for 5 seconds. c. Restart the server. d. If the server fails POST and the power-control button does not work, disconnect the ac power cord for 20 seconds; then, reconnect the ac power cord and restart the server. 2. If the problem remains or if you are using an ACPI-aware operating system, suspect the I/O board. The server unexpectedly shuts down, and the LEDs on the operator information panel are not lit. See "Solving undetermined problems" on page 91. Serial port problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 3, "Parts listing, Type 8863," on page 93 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)", that step must be performed only by a trained service technician. Symptom Action The number of serial ports that are identified by the operating system is less than the number of installed serial ports. 1. Make sure that: v Each port is assigned a unique address in the Configuration/Setup Utility program and none of the serial ports is disabled. v The serial-port adapter, if you installed one, is seated properly. 2. Reseat the serial port adapter. 3. Replace the serial port adapter. A serial device does not work. 1. Make sure that: v The device is compatible with the server. v The serial port is enabled and is assigned a unique address. v The device is connected to the correct port (see "System-board layouts" on page 8). 2. Reseat the following components: a. Failing serial device b. Serial cable c. Remote Supervisor Adapter II SlimLine, if present d. I/O board 3. Replace the components listed in step 2 one at a time, in the order shown, restarting the server each time. 46 IBM xSeries 366 Type 8863: Problem Determination and Service Guide

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v
Follow
the
suggested
actions
in
the
order
in
which
they
are
listed
in
the
Action
column
until
the
problem
is
solved.
v
See
Chapter
3,
“Parts
listing,
Type
8863,”
on
page
93
to
determine
which
components
are
customer
replaceable
units
(CRU)
and
which
components
are
field
replaceable
units
(FRU).
v
If
an
action
step
is
preceded
by
“(Trained
service
technician
only)”,
that
step
must
be
performed
only
by
a
trained
service
technician.
Symptom
Action
The
server
does
not
turn
off.
1.
Determine
whether
you
are
using
an
Advanced
Configuration
and
Power
Management
(ACPI)
or
a
non-ACPI
operating
system.
If
you
are
using
a
non-ACPI
operating
system,
complete
the
following
steps:
a.
Press
Ctrl+Alt+Delete.
b.
Turn
off
the
server
by
holding
the
power-control
button
for
5
seconds.
c.
Restart
the
server.
d.
If
the
server
fails
POST
and
the
power-control
button
does
not
work,
disconnect
the
ac
power
cord
for
20
seconds;
then,
reconnect
the
ac
power
cord
and
restart
the
server.
2.
If
the
problem
remains
or
if
you
are
using
an
ACPI-aware
operating
system,
suspect
the
I/O
board.
The
server
unexpectedly
shuts
down,
and
the
LEDs
on
the
operator
information
panel
are
not
lit.
See
“Solving
undetermined
problems”
on
page
91.
Serial
port
problems
v
Follow
the
suggested
actions
in
the
order
in
which
they
are
listed
in
the
Action
column
until
the
problem
is
solved.
v
See
Chapter
3,
“Parts
listing,
Type
8863,”
on
page
93
to
determine
which
components
are
customer
replaceable
units
(CRU)
and
which
components
are
field
replaceable
units
(FRU).
v
If
an
action
step
is
preceded
by
“(Trained
service
technician
only)”,
that
step
must
be
performed
only
by
a
trained
service
technician.
Symptom
Action
The
number
of
serial
ports
that
are
identified
by
the
operating
system
is
less
than
the
number
of
installed
serial
ports.
1.
Make
sure
that:
v
Each
port
is
assigned
a
unique
address
in
the
Configuration/Setup
Utility
program
and
none
of
the
serial
ports
is
disabled.
v
The
serial-port
adapter,
if
you
installed
one,
is
seated
properly.
2.
Reseat
the
serial
port
adapter.
3.
Replace
the
serial
port
adapter.
A
serial
device
does
not
work.
1.
Make
sure
that:
v
The
device
is
compatible
with
the
server.
v
The
serial
port
is
enabled
and
is
assigned
a
unique
address.
v
The
device
is
connected
to
the
correct
port
(see
“System-board
layouts”
on
page
8).
2.
Reseat
the
following
components:
a.
Failing
serial
device
b.
Serial
cable
c.
Remote
Supervisor
Adapter
II
SlimLine,
if
present
d.
I/O
board
3.
Replace
the
components
listed
in
step
2
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time.
46
IBM
xSeries
366
Type
8863:
Problem
Determination
and
Service
Guide