English 79
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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