Central Processing Unit Error Codes (1Xx - Xx Range) - Compaq PORTABLE 386 Maintenance And Service Manual

the problem. After completing each step, run the DIAGNOSTICS Program to
verify that the error condition has been corrected.
reappears, perform the next step, then run the DIAGNOSTICS Program.
until the DIAGNOSTICS Program no longer detects an error condition.
The error codes are in the form of AYY - XX or AAYY - XX.
the faulty subassembly.
denotes a specific problem.
the diskette drive write/read/compare test failed.
For assistance in the removal and replacement of a particular subassembly, see
Chapter 8, "Removal and Replacement Procedures."
Table 6-2.

Central Processing Unit Error Codes (1xx - xx Range)

==============================================================================
Error
Code Error Description
------------------------------------------------------------------------------
101 - 01 Central Processing Unit
------------------------------------------------------------------------------
102 - 01 Numeric coprocessor
initial status word
incorrect
102 - 02 Numeric coprocessor
initial control word
incorrect
102 - 03 Numeric coprocessor
tag word not all ones
102 - 04 Numeric coprocessor
tag word not all zeros
102 - 05 Numeric coprocessor
exchange command failed
102 - 06 Numeric coprocessor
masked exception
incorrectly handled
102 - 07 Numeric coprocessor
unmasked exception
incorrectly handled
------------------------------------------------------------------------------
Error
Code Error Description
------------------------------------------------------------------------------
102 - 08 Numeric coprocessor
wrong mask bit set in
status register
102 - 09 Numeric coprocessor
unable to store real
number
102 - 10 Numeric coprocessor
real number calculation
YY denotes the test or action that failed.
For example, error code 603 - 07 indicates that
Recommended Action
Replace the system board and retest
for error code 101 - 01
The following steps apply to error
codes 102 - 01 through 102 - 15:
1.
2.
3.
4.
Recommended Action
The following steps apply
to error codes 102 - 01
through 102 - 15:
1.
2.
3.
4.
If the error code
A or AA represents
Verify jumper setting.
Verify coprocessor is the
proper speed.
Replace the coprocessor
and retest.
Replace the system board
and retest.
Verify jumper setting.
Verify coprocessor is the
proper speed.
Replace the coprocessor
and retest.
Replace the system board
Continue
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