Lenovo ThinkPad T500 Hardware Maintenance Manual - Page 47

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

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Symptom-to-FRU index This section contains following information: v "Numeric error codes" v "Error messages" on page 43 v "Beep symptoms" on page 44 v "No-beep symptoms" on page 44 v "LCD-related symptoms" on page 45 v "Intermittent problems" on page 46 v "Undetermined problems" on page 46 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 46. Note: For a device not supported by diagnostic codes in the ThinkPad computers, see the manual for that device. Numeric error codes Table 1. 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 BIOS Setup Utility, and save the current setting by pressing F10. 2. System board. 0177 Bad SVP data, stop POST task-The checksum of the supervisor password in the EEPROM is not correct. System board. 0182 1. Run BIOS Setup Utility. Press F9, and Bad CRC2. Enter BIOS Setup and load Setup Enter to load the default setting. Then defaults.-The checksum of the CRS2 setting save the current setting by pressing F10. in the EEPROM is not correct. 2. System board. 0185 Bad startup sequence settings. Enter BIOS Setup and load Setup defaults. 1. Run BIOS Setup Utility. Press F9, and Enter to load the default setting. Then save the current setting by pressing F10. Related service information 39

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Symptom-to-FRU
index
This
section
contains
following
information:
v
“Numeric
error
codes”
v
“Error
messages”
on
page
43
v
“Beep
symptoms”
on
page
44
v
“No-beep
symptoms”
on
page
44
v
“LCD-related
symptoms”
on
page
45
v
“Intermittent
problems”
on
page
46
v
“Undetermined
problems”
on
page
46
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
46.
Numeric
error
codes
Table
1.
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
BIOS
Setup
Utility,
and
save
the
current
setting
by
pressing
F10.
2.
System
board.
0177
Bad
SVP
data,
stop
POST
task—The
checksum
of
the
supervisor
password
in
the
EEPROM
is
not
correct.
System
board.
0182
Bad
CRC2.
Enter
BIOS
Setup
and
load
Setup
defaults.—The
checksum
of
the
CRS2
setting
in
the
EEPROM
is
not
correct.
1.
Run
BIOS
Setup
Utility.
Press
F9,
and
Enter
to
load
the
default
setting.
Then
save
the
current
setting
by
pressing
F10.
2.
System
board.
0185
Bad
startup
sequence
settings.
Enter
BIOS
Setup
and
load
Setup
defaults.
1.
Run
BIOS
Setup
Utility.
Press
F9,
and
Enter
to
load
the
default
setting.
Then
save
the
current
setting
by
pressing
F10.
Note:
For
a
device
not
supported
by
diagnostic
codes
in
the
ThinkPad
computers,
see
the
manual
for
that
device.
Related
service
information
39