IBM 887022X Installation Guide - Page 90

Light, diagnostics, table

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Light path diagnostics table Use the following table to help determine the cause of the error and the action you should take. Lit LED on diagnostics panel None Cause An error has occurred and cannot be isolated, or the error log is full. CPU One of the microprocessors has failed. Action An error has occurred that is not represented by a light path diagnostics LED. Check the system error log for more information about the error. v Check the microprocessor failure LEDs on the system board. v If a microprocessor failure LED is on, make sure the microprocessor is installed correctly. (See the Option Installation Guide on the IBM xSeries Documentation CD for installation instructions.) MEMORY A memory error occurred. If the problem remains, call for service. v Check the DIMM failure LEDs on the system board. v Replace the DIMM indicated by the lit DIMM failure LED. DASD One of the hot-swap hard drives has failed If the problem remains, call for service. v Make sure the hard drive is installed correctly. Remove and re-install, if necessary. v Check to see that the server fans are operating correctly. PCI-X BUS An error occurred on a PCI bus. If the problem remains, call for service. v Check the system error log. v If you cannot isolate the failing adapter from the information in the system error log, try to determine the failing adapter by removing one adapter at a time from the failing PCI-X bus and restarting the server after each adapter is removed. FAN TEMP A fan has failed or is operating too slowly. Note: A failing fan can also cause the TEMP LED to be lit. The system temperature has exceeded a threshold level. If the problem remains, call for service. Check the LEDs on the fans and replace the indicated fan. If the problem remains, call for service. v Check to see if a fan has failed. If it has, replace the fan. v Make sure the room temperature is not too hot. (See "Features and specifications" on page 4 for temperature information.) If the problem remains, call for service. 78 xSeries 445 Type 8870: Installation Guide

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Light
path
diagnostics
table
Use
the
following
table
to
help
determine
the
cause
of
the
error
and
the
action
you
should
take.
Lit
LED
on
diagnostics
panel
Cause
Action
None
An
error
has
occurred
and
cannot
be
isolated,
or
the
error
log
is
full.
An
error
has
occurred
that
is
not
represented
by
a
light
path
diagnostics
LED.
Check
the
system
error
log
for
more
information
about
the
error.
CPU
One
of
the
microprocessors
has
failed.
v
Check
the
microprocessor
failure
LEDs
on
the
system
board.
v
If
a
microprocessor
failure
LED
is
on,
make
sure
the
microprocessor
is
installed
correctly.
(See
the
Option
Installation
Guide
on
the
IBM
xSeries
Documentation
CD
for
installation
instructions.)
If
the
problem
remains,
call
for
service.
MEMORY
A
memory
error
occurred.
v
Check
the
DIMM
failure
LEDs
on
the
system
board.
v
Replace
the
DIMM
indicated
by
the
lit
DIMM
failure
LED.
If
the
problem
remains,
call
for
service.
DASD
One
of
the
hot-swap
hard
drives
has
failed
v
Make
sure
the
hard
drive
is
installed
correctly.
Remove
and
re-install,
if
necessary.
v
Check
to
see
that
the
server
fans
are
operating
correctly.
If
the
problem
remains,
call
for
service.
PCI-X
BUS
An
error
occurred
on
a
PCI
bus.
v
Check
the
system
error
log.
v
If
you
cannot
isolate
the
failing
adapter
from
the
information
in
the
system
error
log,
try
to
determine
the
failing
adapter
by
removing
one
adapter
at
a
time
from
the
failing
PCI-X
bus
and
restarting
the
server
after
each
adapter
is
removed.
If
the
problem
remains,
call
for
service.
FAN
A
fan
has
failed
or
is
operating
too
slowly.
Note:
A
failing
fan
can
also
cause
the
TEMP
LED
to
be
lit.
Check
the
LEDs
on
the
fans
and
replace
the
indicated
fan.
If
the
problem
remains,
call
for
service.
TEMP
The
system
temperature
has
exceeded
a
threshold
level.
v
Check
to
see
if
a
fan
has
failed.
If
it
has,
replace
the
fan.
v
Make
sure
the
room
temperature
is
not
too
hot.
(See
“Features
and
specifications”
on
page
4
for
temperature
information.)
If
the
problem
remains,
call
for
service.
78
xSeries
445
Type
8870:
Installation
Guide