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Appendix A The Error Codes
1500h – 1503h:
Modem Error Codes
1500h – 1503h:
Modem Error Codes
1031h
L2 Cache Parity error.
Cache memory error.
Check processor, L2 cache and main memory are
correctly installed.
Run memory tests to confirm correct function of
main memory and any external L2 cache memory.
If error persists, replace processor.
1081h
No active external cache memory.
Cache memory error.
Enable external cache memory from BIOS setup.
1082h
No extended memory available from
HIMEM.SYS.
Unload HIMEM.SYS or programs using HIMEM.SYS.
1083h
No extended memory detected.
Install the extended memory to be tested.
8000h
Fails in executing an external program.
Make sure the external program is in the DiagTools
directory.
Code
Explanation
Details/Parts to check
1500h
No modem.
Modem not found. Power on the modem and re-run
the diagnostic test.
1501h
IRQ test failed.
Check IRQ jumper settings.
1502h
Loopback test failed.
Install a new modem.
1503h
Dial tone failed.
Ensure that the line cable is plugged in.
Code
Explanation
Details/Parts to Check
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