Power-supply
LEDs
The
ac
and
dc
power
LEDs
on
a
power
supply
provide
status
information
about
that
power
supply.
The
following
illustration
shows
the
location
of
the
ac
and
dc
power
LEDs.
Note:
The
following
illustration
shows
the
rear
of
the
server
with
two
hot-swap
power
supplies
installed.
A
server
with
a
single
fixed
power
supply
will
have
one
power
supply
and
no
fans
on
the
rear
of
the
server.
Fan 5 LED
Fan 6 LED
Power supply 1
Power supply 2
AC power LED
AC power LED
DC power LED
DC power LED
For
more
information
about
the
ac
and
dc
power
LEDs,
see
“Power-supply
LED
errors”
on
page
116.
Updating
the
BMC
firmware
Use
the
baseboard
management
controller
(BMC)
firmware
update
utility
program
to
download
a
BMC
firmware
update
or
a
sensor
data
record/field
replaceable
unit
update.
The
firmware
update
utility
program
updates
the
BMC
firmware
or
SDR/FRU
data
only
and
does
not
affect
any
device
drivers.
Go
to
http://www.ibm.com/support/
to
download
the
utility
program;
then,
copy
the
flash.exe
file
to
a
firmware
update
diskette.
Note:
To
ensure
proper
server
operation,
be
sure
to
update
the
server
BMC
firmware
code
first
before
updating
the
BIOS
code.
Chapter
5.
Diagnostics
95
Summary of Contents for 884155U
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