IBM 2681 Hardware Maintenance Manual - Page 57

Symptom-to-FRU, index, Numeric, error, codes - service manual

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Symptom-to-FRU index Symptom-to-FRU index The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type. Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or action, in sequence." If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU. This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next. A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number. If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to "Intermittent problems" on page 59. Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device. Numeric error codes Symptom or error FRU or action, in sequence 0175 Bad CRC1, stop POST task-The EEPROM checksum is not correct. System board. 0176 System Security-The System has been tampered with. 1. Run IBM BIOS Setup Utility and Load Setup Defaults. 2. System board. 0177 System board. Bad SVP data, stop POST task. 0182 Bad CRC2. Enter BIOS Setup and load Setup Defaults. Run IBM BIOS Setup Utility and Load Setup Defaults. 0185 Bad startup sequence settings. Enter BIOS Setup and load setup defaults. Run IBM BIOS Setup Utility and Load Setup Defaults ThinkPad R40 53

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Symptom-to-FRU
index
The
symptom-to-FRU
index
in
this
section
lists
symptoms
and
errors
and
their
possible
causes.
The
most
likely
cause
is
listed
first,
in
boldface
type.
Note:
Do
the
FRU
replacement
or
other
actions
in
the
sequence
shown
in
the
column
headed
“
FRU
or
action,
in
sequence.
”
If
replacing
a
FRU
does
not
solve
the
problem,
put
the
original
part
back
in
the
computer.
Do
not
replace
a
nondefective
FRU.
This
index
can
also
help
you
determine,
during
regular
servicing,
what
FRUs
are
likely
to
need
to
be
replaced
next.
A
numeric
error
is
displayed
for
each
error
detected
in
POST
or
system
operation.
In
the
displays,
n
can
be
any
number.
If
no
numeric
code
is
displayed,
check
the
narrative
descriptions
of
symptoms.
If
the
symptom
is
not
described
there,
go
to
“
Intermittent
problems
”
on
page
59.
Note
For
an
IBM
device
not
supported
by
diagnostic
codes
in
the
ThinkPad
notebook
computers,
see
the
manual
for
that
device.
Numeric
error
codes
Symptom
or
error
FRU
or
action,
in
sequence
0175
Bad
CRC1,
stop
POST
task
—
The
EEPROM
checksum
is
not
correct.
System
board
.
0176
System
Security
—
The
System
has
been
tampered
with.
1.
Run
IBM
BIOS
Setup
Utility
and
Load
Setup
Defaults
.
2.
System
board.
0177
Bad
SVP
data,
stop
POST
task.
System
board
.
0182
Bad
CRC2.
Enter
BIOS
Setup
and
load
Setup
Defaults.
Run
IBM
BIOS
Setup
Utility
and
Load
Setup
Defaults
.
0185
Bad
startup
sequence
settings.
Enter
BIOS
Setup
and
load
setup
defaults.
Run
IBM
BIOS
Setup
Utility
and
Load
Setup
Defaults
Symptom-to-FRU
index
ThinkPad
R40
53