Operating
Instructions
POWER-ON
SELF
TEST
EXECUTION
Immediately
upon
powering on
the
CPU,
Power-on
Self Test begins execution.
The
LED
display will flash
"0",
"I
",
and
"2" (
the
"2"
may
not
be visible) as
the
first
Series
of
tests
are
loaded
into
the
WCS.
Then
a
"5",
indicating
card
5
of
the
CPU,
is
displayed as
the
CPU
tests
He
executed.
Upon
successful completion
of
the
CPU
tests, a
"B"
will
be
displayed as
the
memory
tests
a.e
executed.
Upon
successful completion
of
the
memory
test, a "C" will be displayed as all
of
the
I/O
cards in
the
system
are
tested
and
the
System
Console is speed sensed.
If
any
of
the
tests fail,
the
failing assembly will be
indicated
in
the
LEOs as well
as
on
the
System Console
if
the
console
path
is
operational.
Table
2-
2 lists
the
LFO
indications
and
error
conditions.
If
PON
completed
without
error,
and
Auto
Warmstart
was enabled,
control
will
be
passed
to
the
loader
code.
If
PON
looping was previously specified
from
the
test mode,
the
Power·-on Self Te,,! will
be
looped
until
the
loop
count
rearhes
O.
However,
if
the
keyswitch
was
changed
to
the"
1"
(NORMAL) position, the
looping
feature
is disabled
and
PON
will be
executed
only
once.
When
all tests have been successfully
completed
Maintenance
Mode
is
entered.
The
following
prompt
is
displayed:
H
for
heip->
If
any
errors
are
reported
on
either
the
LED
or
the
System Console
contact
your
local
HP
Service
Representative.
LED
Indication
Flashing
"B"
Flashirig "c"
Flashing "c"
followed by
Flashing"
I"
Flashing "5"
or
Steady
"5"
Flashing "n"
Flashing
"E"
followed by
Flashing
"n"
Steady
"0"
Steady
"1"
Steady
"21;
NOV 84
2-2
I
Table
2-2.
LED
IndicatIOns
and
Error
Conditions
Meaning
Memory
Test failed.
Console Failed
to
Speed Sense.
The
Console TIC
is
bad.
The
CPU
card
failed.
The
Card
in
Slot n failed.
For
each
card
in
slot n
of
the
extender
that
failed.
Processor
is
not executing
micro-instructions
or
looping on first ones.
Proces<or
hung
in
the
initial WCS
b00tup
from
RO\f
Initial
WCS boot
up
from
ROM failed
the
data
integrity
test.
A
retry
is
being
attempted.
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