Troubleshooting, System faults, Power supply unit faults – Lenovo Secure Managed Client User Manual
Page 36: System, Faults, Power, Supply, Unit

Table
11.
Light
and
buzzer
interpretations
(continued)
LED/buzzer
State
Related
Meaning
Action
Faster
beep
(1.5
seconds
beep,
0.5
second
silence)
Front
operator's
panel
fault
LED
fast
blink
(alternating
every
half
second)
Critical
mode
See
Constant
beep
Front
operator's
panel
fault
LED
constant
on
Failure
mode
See
Troubleshooting
The
following
sections
describe
common
problems,
with
possible
solutions,
which
can
occur
with
your
Secure
Managed
Client
(SMC)
-
Storage
Array.
For
details
on
how
to
remove
and
replace
a
module
see
the
Hardware
Installation
and
Replacement
Guide.
System
faults
Table
12.
System
faults
Symptom
Cause
Action
1.
Audible
alarm
sounds
1.
Internal
fault
detected
(failure
of
an
internal
communications
path)
1.
Check
for
other
amber
LED
indications
of
the
power
supply
units.
If
there
is
a
PSU
error
present
there
may
be
a
communication
problem
with
that
PSU.
Remove
and
then
re-install
the
PSU.
If
the
problem
persists
then
change
the
PSU.
Power
supply
unit
faults
Table
13.
Power
supply
unit
faults
Symptom
Cause
Action
1.
Front
operator's
panel
unit
fault
LED
amber
2.
Audible
alarm
sounding
1.
Any
power
fault
2.
A
thermal
condition
which
could
cause
PSU
overheating
1.
Check
that
the
AC
main
connection
to
PSU
is
live
2.
Disconnect
the
PSU
from
main
power
and
remove
the
PSU
from
the
power
supply
cage.
Re-install.
If
problem
persists,
replace
PSU.
3.
Reduce
the
ambient
temperature
28
User
Guide