Technical data
9050
Diagnostics
5-13
S
elf
t
est
err
0 r
5:
Fewer
fin
s t
rat
e s
we
ref
0
un
d t han ex
pee
ted.
- This message
is
displayed
when the number of boards recorded
in
the Non-Volatile Memory
(NVM)
is
greater than the actual
number of boards
in
the stack. If the number of boards
in
the stack
is
greater than the
number
stored
in
the
NVM,
the number
in
the
NVM
is
updated to reflect the larger stack
size.
Fatal
Error
Messages
SysteM
halted
due
to
double
bit
MeMOry
error
on
MC
#
NN
CCCCCCCC
Where:
NN
=
MC
#
CCCCCCCC = Last healer content
for
that
MC
(in
hexadecimal).
This message
is
displayed when a double bit error has been detected by the memory controller
hardware. The
MC#
is
in
terms of memory controller boards (counting up from the bottom of the
stack). This information
is
also recorded
in
the
NVM.
If more than one
MC
with a double bit error
is
found, only the last error
is
displayed. If no double bit
errors are found, but the
CPU was interrupted for a double bit error, "No
DBE
found" replaces
NN
XXXXXXXXX.
DBE
information
is
stored
in
the
NVM.
SYSTEM_HAL
TED:
I
1"1
s
uf
fie
i
er,t
MenlO
n'
to
s
tart
s
\'S
t
elri
- This message
is
displayed when there
is
insufficient memory for the operating system and user subsystem. Check the stack self-test lights
to see
if
any stack components have failed self-test.
Also,
check the memory configuration of the
computer to see
if
it
is
large enough to accomodate the system and options which are being loaded.
SYSTEM
HALTED:
lnCOlrlpatible
lOPs - This message indicates that an illegal combination of lOP
boards were found at power up. lOPs of Revision 2.1 or earlier are not compatible with lOPs of
Revision 2.2 or later.
System Error Message
Sy
s t
elll
hal
ted
-
>SYSTEM
ERROR:
••••
- This message
is
displayed when the operating system soft-
ware encounters either:
•
an
unanticipated trap,
• an unrecoverable system software error.
The
"trap"
is
distinguished from the software error by the word "trap:" which
is
added
to the
first
line of the message.
Before displaying any messages, the currently executing
CPU disables
its
interrupts
and
causes
all
other CPUs to stop operating. The message text
is
mUltiple
lines information
dumped
from memory
and
internal registers. The message starts on the top line
on
the Display
and
overwrites any other
messages
on
the CRT. If a printer
is
the output device and the message
is
more than
25
lines in
length, the message continues to print (up to
500
lines).