Personal Computer User Manual

System diagnostics error codes and messages (continued)
Error code
Message
Alternate serial port
1201
control signal ALWAYS LOW
1201 control signal ALWAYS HIGH
1202 TIMEOUT ERROR
1203 VERIFY ERROR
Dot-matrix printer
1401
status
Hard disk drive(s) and controller
1701 SEEK ERROR
1702 WRITE ERROR
1703 READ ERROR
1704 HEAD ERROR
1705 ERROR DETECTION ERROR
1706 ERROR CORRECTION ERROR
Alternate parallel port
2101
ERROR PIN p
Parallel port (on video adapter)
81nn ERROR PIN p
Performing System Diagnostics C-39