IBM 8862 Hardware Maintenance Manual - Page 138

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Note: See Chapter 7, "Parts listing, Types 8861, 8862," on page 139 to determine which components are replaceable by the customer and which components must be replaced by an IBM field service technician. Power problems Symptom FRU/action The server does not turn on. Note: The xSeries 365 server requires two 950W hot swap power supplies for full redundancy at both 220V and 110V. 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 The memory cassette is fully seated. v If you just installed an option, remove it, and restart the server. If the server now turns on, you might have installed more options than the power supply supports. v The LEDs on the power supply are do not reflect a problem. 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. c. Reseat the operator information panel cables, then repeat steps 2a and 2b. If server turns on: v Operator information panel If server does not turn on, see "Power LED errors" on page 130. 3. See "Undetermined problems" on page 136.. 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 5 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. The server unexpectedly shuts v See 12V bus fault messages at "Service processor messages" on page 109. down and the LEDs on the front panel are not lit. Note: See Chapter 7, "Parts listing, Types 8861, 8862," on page 139 to determine which components are replaceable by the customer and which components must be replaced by an IBM field service technician. Serial port problems Symptom FRU/action The number of serial ports identified by the operating system is less than the number of serial ports installed. 1. Verify 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. Failing serial port adapter. 128 IBM xSeries 365 Types 8861, 8862: Hardware Maintenance Manual and Troubleshooting Guide

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Note:
See
Chapter
7,
“Parts
listing,
Types
8861,
8862,”
on
page
139
to
determine
which
components
are
replaceable
by
the
customer
and
which
components
must
be
replaced
by
an
IBM
field
service
technician.
Power
problems
Symptom
FRU/action
The
server
does
not
turn
on.
Note:
The
xSeries
365
server
requires
two
950W
hot
swap
power
supplies
for
full
redundancy
at
both
220V
and
110V.
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
The
memory
cassette
is
fully
seated.
v
If
you
just
installed
an
option,
remove
it,
and
restart
the
server.
If
the
server
now
turns
on,
you
might
have
installed
more
options
than
the
power
supply
supports.
v
The
LEDs
on
the
power
supply
are
do
not
reflect
a
problem.
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.
c.
Reseat
the
operator
information
panel
cables,
then
repeat
steps
2a
and
2b.
If
server
turns
on:
v
Operator
information
panel
If
server
does
not
turn
on,
see
“Power
LED
errors”
on
page
130.
3.
See
“Undetermined
problems”
on
page
136..
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
5
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.
The
server
unexpectedly
shuts
down
and
the
LEDs
on
the
front
panel
are
not
lit.
v
See
12V
bus
fault
messages
at
“Service
processor
messages”
on
page
109.
Note:
See
Chapter
7,
“Parts
listing,
Types
8861,
8862,”
on
page
139
to
determine
which
components
are
replaceable
by
the
customer
and
which
components
must
be
replaced
by
an
IBM
field
service
technician.
Serial
port
problems
Symptom
FRU/action
The
number
of
serial
ports
identified
by
the
operating
system
is
less
than
the
number
of
serial
ports
installed.
1.
Verify
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.
Failing
serial
port
adapter.
128
IBM
xSeries
365
Types
8861,
8862:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide