Power-On
Self-Test
After
power
is
turned
on
and
before
the
operating
system
is
loaded,
the
partition
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
display
on
the
virtual
terminal.
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
partition
is
preparing
to
load
the
operating
system.
The
POST
indicators
are
words
that
display
on
the
virtual
terminal.
Each
time
that
the
firmware
starts
another
step
in
the
POST,
a
POST
indicator
word
displays
on
the
console.
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
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
boot
modes
used
for
configuring
the
system
and
diagnosing
problems.
The
system
will
beep
to
remind
you
to
press
the
POST
key
(if
desired)
at
the
appropriate
time.
The
keys
are
described
as
follows:
1
Key
The
numeric
1
key,
when
pressed
during
POST,
starts
the
System
Management
Services
(SMS)
interface.
5
Key
The
numeric
5
key,
when
pressed
during
POST,
initiates
a
partition
boot
in
service
mode
using
the
default
service
mode
boot
list.
This
mode
attempts
to
boot
from
the
first
device
of
each
type
found
in
the
list.
It
does
not
search
for
other
bootable
devices
of
that
type
if
the
first
device
is
not
bootable.
Instead,
it
continues
to
the
next
device
type
in
the
list.
The
firmware
supports
up
to
five
entries
in
the
boot
list.
The
default
boot
sequence
is:
1.
Diskette
2.
CD-ROM
3.
Hard
file
4.
Tape
drive
(if
installed)
5.
Network
a.
Token
ring
b.
Ethernet
6
Key
The
numeric
6
key
works
like
the
numeric
5
key,
except
that
firmware
uses
the
customized
service
mode
boot
list,
which
can
be
set
in
the
AIX
service
aids.
Chapter
1.
Reference
Information
15
Summary of Contents for eserver pSeries 690
Page 1: ...pSeries 690 Service Guide SA38 0589 05 ERserver...
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Page 3: ...pSeries 690 Service Guide SA38 0589 05 ERserver...
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Page 14: ...xii Eserver pSeries 690 Service Guide...
Page 228: ...Step 1527 5 Call your next level of support 212 Eserver pSeries 690 Service Guide...
Page 362: ...Step 1545 15 Call for support This ends the procedure 346 Eserver pSeries 690 Service Guide...
Page 381: ...Step 154A 14 Turn off the power Chapter 3 Maintenance Analysis Procedures 365...
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Page 798: ...782 Eserver pSeries 690 Service Guide...
Page 923: ...L3 Cache Shorts Test Step 4 Chapter 9 Removal and Replacement Procedures 907...
Page 924: ...L3 Cache Shorts Test Step 5 908 Eserver pSeries 690 Service Guide...
Page 926: ...L3 Cache Shorts Test Step 2 910 Eserver pSeries 690 Service Guide...
Page 928: ...L3 Cache Shorts Test Step 4 912 Eserver pSeries 690 Service Guide...
Page 929: ...L3 Cache Shorts Test Step 5 Chapter 9 Removal and Replacement Procedures 913...
Page 1055: ...7040 Model 681 Media Subsystem 1 2 3 4 5 6 7 8 9 10 Chapter 10 Parts Information 1039...
Page 1057: ...Power and SCSI Cables to the Media Subsystem 1 2 3 5 4 6 Chapter 10 Parts Information 1041...
Page 1061: ...Power Cabling Chapter 10 Parts Information 1045...
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