Справочник Пользователя для IBM Type 7977
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
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
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