IBM x3500 Installation Guide - Page 105

following, table, describes, light, diagnostics, panel, suggested, actions, correct, detected,

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Light path diagnostics LEDs The following table describes the LEDs on the light path diagnostics panel and suggested actions to correct the detected 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 the Problem Determination and Service Guide on the IBM System x Documentation CD 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. Lit light path diagnostics LED with the system-error or information LED also lit Description Action All LEDs are off (the power LED is lit; the information LED might be lit). No action is necessary. POWER SUPPLY 1 Power supply 1 has failed or has been removed. Note: In a redundant power configuration, the dc power LED on one power supply might be off. 1. Reinstall the power supply 1. 2. Check the individual power-supply LEDs. 3. Reseat the following components: a. Power supply b. (Trained service technician only) Power backplane 4. Replace the components listed in step 3, one at a time, in the order shown, restarting the server each time. 5. If a 240 V ac fault has occurred, remove ac power before restoring dc power. POWER SUPPLY 2 Power supply 2 has failed or has been removed. Note: In a redundant power configuration, the dc power LED on one power supply might be off. 1. Reinstall the power supply 2. 2. Check the individual power-supply LEDs. 3. Reseat the following components: a. Power supply b. (Trained service technician only) Power backplane 4. Replace the components listed in step 3, one at a time, in the order shown, restarting the server each time. 5. If a 240 V ac fault has occurred, remove ac power before restoring dc power. CONFIG Microprocessor configuration error. 1. Mismatched microprocessors, remove and install two microprocessor of the same cache size, type, and clock speed. 2. Check the system error log for information indicating incompatible components. Chapter 5. Solving problems 91

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Light
path
diagnostics
LEDs
The
following
table
describes
the
LEDs
on
the
light
path
diagnostics
panel
and
suggested
actions
to
correct
the
detected
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
the
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD
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.
Lit
light
path
diagnostics
LED
with
the
system-error
or
information
LED
also
lit
Description
Action
All
LEDs
are
off
(the
power
LED
is
lit;
the
information
LED
might
be
lit).
No
action
is
necessary.
POWER
SUPPLY
1
Power
supply
1
has
failed
or
has
been
removed.
Note:
In
a
redundant
power
configuration,
the
dc
power
LED
on
one
power
supply
might
be
off.
1.
Reinstall
the
power
supply
1.
2.
Check
the
individual
power-supply
LEDs.
3.
Reseat
the
following
components:
a.
Power
supply
b.
(Trained
service
technician
only)
Power
backplane
4.
Replace
the
components
listed
in
step
3,
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time.
5.
If
a
240
V
ac
fault
has
occurred,
remove
ac
power
before
restoring
dc
power.
POWER
SUPPLY
2
Power
supply
2
has
failed
or
has
been
removed.
Note:
In
a
redundant
power
configuration,
the
dc
power
LED
on
one
power
supply
might
be
off.
1.
Reinstall
the
power
supply
2.
2.
Check
the
individual
power-supply
LEDs.
3.
Reseat
the
following
components:
a.
Power
supply
b.
(Trained
service
technician
only)
Power
backplane
4.
Replace
the
components
listed
in
step
3,
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time.
5.
If
a
240
V
ac
fault
has
occurred,
remove
ac
power
before
restoring
dc
power.
CONFIG
Microprocessor
configuration
error.
1.
Mismatched
microprocessors,
remove
and
install
two
microprocessor
of
the
same
cache
size,
type,
and
clock
speed.
2.
Check
the
system
error
log
for
information
indicating
incompatible
components.
Chapter
5.
Solving
problems
91