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Follow
the
steps
in
this
procedure
to
identify
system
problems.
001
IS
THE
SERVER
PART
OF
A
CLUSTER?
YES.
Schedule
maintenance
for
the
system.
Shut
down
all
systems
related
to
the
cluster.
NO.
Go
to
step
002.
002
IF
THE
SERVER
IS
NOT
PART
OF
A
CLUSTER:
If
the
operating
system
is
running,
do
the
following:
1.
Check
the
Light
Path.
Go
to
“Light
Path
Diagnostics
feature”
on
page
36
for
more
information.
2.
Check
the
service
processor
system-error
logs.
a.
If
the
system-error
log
indicates
a
damaged
field
replaceable
unit
(FRU),
replace
the
FRU,
and
run
the
AMIDiag
program
to
confirm
that
the
problem
has
been
solved.
b.
If
the
system-error
log
does
not
indicate
a
damaged
FRU,
check
the
Light
Path.
If
the
operating
system
is
not
running,
do
the
following:
1.
Check
the
Light
Path.
Go
to
“Light
Path
Diagnostics
feature”
on
page
36
for
more
information.
2.
Check
the
service
processor
system-error
logs.
a.
If
the
error
log
indicates
a
damaged
field
replaceable
unit
(FRU),
replace
the
FRU,
and
run
the
AMIDiag
program
to
confirm
that
the
problem
has
been
solved.
b.
If
the
error
log
does
not
indicate
a
damaged
FRU,
see
“Undetermined
problems”
on
page
185
3.
Turn
off
the
server
and
all
external
devices.
4.
Check
all
cables
and
power
cords.
5.
Set
all
display
controls
to
the
middle
position.
6.
Turn
on
all
external
devices.
7.
Turn
on
the
server.
8.
Monitor
the
screen
and
the
serial
port
for
POST
errors,
and
record
any
POST
error
messages
that
are
displayed
on
the
screen.
If
an
error
is
displayed,
look
up
the
first
error
in
the
“SAL/EFI
messages”
on
page
150.
9.
When
the
EFI
Boot
Manager
starts,
select
Diagnostic
from
the
menu,
and
press
Enter
to
start
the
AMIDiag
program.
003
DID
THE
DIAGNOSTIC
PROGRAM
START?
NO.
Find
the
failure
symptom
in
“Error
symptoms”
on
page
176.
YES.
Run
the
diagnostic
programs.
If
necessary,
see
“Diagnostic
programs,
error
codes,
and
messages”
on
page
38.
If
you
receive
an
error,
see
Chapter
6,
“Symptom-to-FRU
index,”
on
page
147.
If
the
diagnostic
programs
were
completed
successfully
and
you
still
suspect
a
problem,
see
“Undetermined
problems”
on
page
185.
If
the
server
does
not
turn
on,
see
“Error
symptoms”
on
page
176.
34
IBM
xSeries
450
Type
8688:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide