IBM 88410EU User Manual - Page 94

Light, diagnostics, panel

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Light path diagnostics panel The following illustration shows the remind button and the LEDs on the light path diagnostics panel. The light path diagnostics panel is inside the server under the left-side cover and the error LEDs are also visible through the left-side cover. 1 POWER SUPPLY 2 CONFIG TEMP REMIND MEMORY DASD/ RAID FAN CPU S_ERR VRM PCI BUS SERVICE NMI PROCESSOR BUS Use the remind button on the light path diagnostic panel to acknowledge that an error has occurred without taking further action. When you push the remind button, the system error LED will flash every 2 seconds until the error is fixed. If another error occurs, the system error LED will then stop flashing and return to a solid on state. For more information about light path diagnostics, see "Light path diagnostics" on page 93. The following table lists the light path diagnostics LEDs, the problems that they indicate, and actions to solve the problems. LED POWER SUPPLY 1 POWER SUPPLY 2 MEMORY CONFIG Problem Action Lit LED: Power supply 1 has failed. 1. Remove ac power from the server. 2. Replace the power supply; then, reconnect the server to ac power and restart the server. Flashing LED: Power supply 1 was Install a new power supply in the PS1 location. removed in a redundant power-supply configuration. Lit LED: Power supply 2 has failed. 1. Remove ac power from the server. 2. Replace the power supply; then, reconnect the server to ac power and restart the server. Flashing LED: Power supply 2 was Install a new power supply in the PS2 location. removed in a redundant power supply configuration. A memory error has occurred. Replace the failing DIMM, indicated by the lit LED on the system board. A configuration error has occurred. Locate the second flashing LED and fix the configuration problem associated with the blinking LED. 84 xSeries 236 Type 8841: Hardware Maintenance Manual and Troubleshooting Guide

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Light
path
diagnostics
panel
The
following
illustration
shows
the
remind
button
and
the
LEDs
on
the
light
path
diagnostics
panel.
The
light
path
diagnostics
panel
is
inside
the
server
under
the
left-side
cover
and
the
error
LEDs
are
also
visible
through
the
left-side
cover.
CPU
VRM
S_ERR
MEMORY
DASD/
RAID
NMI
SERVICE
PROCESSOR
BUS
FAN
POWER
SUPPLY
PCI
BUS
2
1
CONFIG
TEMP
REMIND
Use
the
remind
button
on
the
light
path
diagnostic
panel
to
acknowledge
that
an
error
has
occurred
without
taking
further
action.
When
you
push
the
remind
button,
the
system
error
LED
will
flash
every
2
seconds
until
the
error
is
fixed.
If
another
error
occurs,
the
system
error
LED
will
then
stop
flashing
and
return
to
a
solid
on
state.
For
more
information
about
light
path
diagnostics,
see
“Light
path
diagnostics”
on
page
93.
The
following
table
lists
the
light
path
diagnostics
LEDs,
the
problems
that
they
indicate,
and
actions
to
solve
the
problems.
LED
Problem
Action
POWER
SUPPLY
1
Lit
LED:
Power
supply
1
has
failed.
1.
Remove
ac
power
from
the
server.
2.
Replace
the
power
supply;
then,
reconnect
the
server
to
ac
power
and
restart
the
server.
Flashing
LED:
Power
supply
1
was
removed
in
a
redundant
power-supply
configuration.
Install
a
new
power
supply
in
the
PS1
location.
POWER
SUPPLY
2
Lit
LED:
Power
supply
2
has
failed.
1.
Remove
ac
power
from
the
server.
2.
Replace
the
power
supply;
then,
reconnect
the
server
to
ac
power
and
restart
the
server.
Flashing
LED:
Power
supply
2
was
removed
in
a
redundant
power
supply
configuration.
Install
a
new
power
supply
in
the
PS2
location.
MEMORY
A
memory
error
has
occurred.
Replace
the
failing
DIMM,
indicated
by
the
lit
LED
on
the
system
board.
CONFIG
A
configuration
error
has
occurred.
Locate
the
second
flashing
LED
and
fix
the
configuration
problem
associated
with
the
blinking
LED.
84
xSeries
236
Type
8841:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide