Operator information panel, Operator, Information – IBM xSeries 235 User Manual
Page 23: Panel
PCI-X
slot
attention
LED:
This
green
LED
flashes
approximately
once
per
second
when
it
is
on.
This
LED
is
visible
from
the
rear
of
the
server
and
from
inside
the
server.
The
meaning
of
the
attention
LED
is
defined
by
your
operating
system.
For
an
illustration
showing
this
LED
on
the
system
board,
see
the
Option
Installation
Guide
on
the
IBM
xSeries
Documentation
CD.
For
additional
information,
see
the
“LEDs
for
Active
PCI
slots”
in
the
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
on
the
IBM
xSeries
Documentation
CD.
NMI
button:
The
Non-Maskable
Interrupt
(NMI)
button
is
for
service
use
only.
DC
power
LED:
This
green
LED
provides
status
information
about
the
power
supply.
During
typical
operation,
both
the
ac
and
dc
power
LEDs
are
on.
For
any
other
combination
of
LEDs,
see
the
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
on
the
IBM
xSeries
Documentation
CD.
AC
power
LED:
This
green
LED
provides
status
information
about
the
power
supply.
During
typical
operation,
both
the
ac
and
dc
power
LEDs
are
on.
For
any
other
combination
of
LEDs,
see
the
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
on
the
IBM
xSeries
Documentation
CD.
Operator
information
panel
The
following
illustration
shows
the
status
LEDs
on
the
operator
information
panel
on
the
front
of
the
server.
TX
RX
OK
1
Power-on
LED
POST-
complete LED
Hard disk drive
activity LED
Information
LED
System-
error LED
Ethernet transmit/
receive activity LED
/
Important:
If
the
power-on
LED
is
off,
it
does
not
mean
there
is
no
electrical
current
present
in
the
server.
The
LED
might
be
burned
out.
To
remove
all
electrical
current
from
the
server,
you
must
unplug
the
server
power
cords
from
the
electrical
outlets
or
from
the
uninterruptible
power
device.
Power-on
LED:
When
this
green
LED
is
on,
power
is
present
in
the
server.
When
this
LED
flashes,
the
server
is
in
Standby
mode
(the
system
operating
system
is
turned
off
and
ac
current
is
present).
When
this
LED
is
off,
the
power
subsystem,
the
ac
power,
or
an
LED
has
failed.
POST-complete
LED:
This
green
LED
is
on
when
POST
is
completed
without
any
errors.
Hard
disk
drive
activity
LED:
This
green
LED
flickers
when
there
is
activity
on
a
hard
disk
drive.
Information
LED:
When
this
amber
LED
is
on,
the
server
power
supplies
are
nonredundant,
or
some
other
noncritical
event
has
occurred.
The
event
is
recorded
in
the
Error
log.
See
for
instructions
for
viewing
the
Error
log.
Check
the
diagnostic
LED
panel
for
more
detailed
information
(see
the
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
on
the
IBM
xSeries
Documentation
CD).
Chapter
1.
Introducing
the
IBM
xSeries
235
Type
8671
server
11