After
a
console
has
been
selected,
the
console-selection
sequence
is
only
started
at
boot
time
if
there
is
a
change
in
the
system
configuration
(as
described
above),
or
the
contents
of
the
system’s
nonvolatile
memory
(NVRAM)
are
lost.
Note:
Moving
an
ASCII
terminal
from
one
serial
port
to
another
(from
S1
to
S2)
cannot
be
detected
by
the
firmware,
so
it
does
not
constitute
a
configuration
change.
You
can
also
initiate
a
system
console-selection
sequence
from
the
SMS
menus.
Power-On
Self-Test
After
power
is
turned
on
and
before
the
operating
system
is
loaded,
the
system
does
a
power-on
self-test
(POST).
This
test
performs
checks
to
ensure
that
the
hardware
is
functioning
correctly
before
the
operating
system
is
loaded.
During
the
POST,
a
POST
screen
displays,
and
POST
indicators
appear
on
the
firmware
console
(if
one
is
connected).
The
next
section
describes
the
POST
indicators
and
functions
that
can
be
accessed
during
the
POST.
POST
Indicators
POST
indicators
indicate
tests
that
are
being
performed
as
the
system
is
preparing
to
load
the
operating
system.
The
POST
indicators
are
words
that
display
on
the
system
console.
Each
time
that
the
system
starts
a
different
step
in
the
POST,
a
POST
indicator
word
appears
on
the
console.
Each
word
is
an
indicator
of
the
tests
that
are
being
performed.
The
POST
screen
displays
the
following
words:
Memory
Memory
test
Keyboard
Initialize
the
keyboard
and
mouse.
The
time
period
for
pressing
a
key
to
access
the
System
Management
Services,
or
to
initiate
a
service
mode
boot
is
now
open.
See
“POST
Keys”
for
more
information.
Network
Self-test
on
network
adapters
SCSI
Adapters
are
being
initialized
Speaker
Sounds
an
audible
tone
at
the
end
of
POST
POST
Keys
The
POST
keys,
if
pressed
after
the
keyboard
POST
indicator
displays
and
before
the
last
POST
indicator
speaker
displays,
cause
the
system
to
start
services
or
to
initiate
service
mode
boots
used
for
configuring
the
system
and
diagnosing
problems.
The
keys
are
described
below:
Note:
The
program
function
keys
(F1-F12)
on
a
keyboard
attached
to
the
I/O
drawer
are
not
used
and
will
be
ignored.
After
the
keyboard
POST
indicator
displays,
you
must
use
the
numeric
number
keys
to
enter
input.
6
Service
Guide
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Страница 561: ...Spine information RS 6000 Enterprise Server Model H80 Eserver pSeries 660 Models 6H0 and 6H1 Service Guide SA38 0566 03 ...
