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System diagnostics error codes and messages (continued)
Error code Message
Monochrome display adapter and
CRT
401
ERROR IN ADAPTER CHECK
403
ERROR IN ATTRIBUTE CHECK
404
ERROR IN CHARACTER SET CHECK
406
ERROR IN GRAPHICS MODE CHECK
408
ERROR IN SCREEN PAGING CHECK
409
ERROR IN LIGHT PEN CHECK
410
ERROR IN VIDEO CHECK
411
ERROR IN SYNC CHECK
Color graphics adapter
and
CRT
501
ERROR IN ADAPTER CHECK
504
ERROR IN CHARACTER SET CHECK
506
ERROR IN COLOR GRAPHICS CHECK
508
ERROR IN SCREEN PAGING CHECK
509
ERROR IN LIGHT PEN CHECK
510
ERROR IN COLOR VIDEO CHECK
511
ERROR IN SYNC CHECK
Diskette
drive(s) and
controller
601
DISKETTE DRIVE CONTROLLER ERROR
602
SEQUENTIAL SEEK ERROR
603
RANDOM SEEK ERROR
604
WRITE ERROR
605
READ ERROR
606
DISK CHANGE CHECK REMOVE ERROR
607
DISK CHANGE CHECK INSERT ERROR
Math coprocessor
701
COPROCESSOR NOT INSTALLED
702
COPROCESSOR INITIALIZE ERROR
703
COPROCESSOR INVALID OPERATION
MASK ERROR
704
COPROCESSOR ST FIELD ERROR
705
COPROCESSOR COMPARISON ERROR
706
COPROCESSOR ZERO DIVIDE MASK ERROR
707
COPROCESSOR ADDITION ERROR
708
COPROCESSOR SUBTRACTION ERROR
709
COPROCESSOR MULTIPLICATION ERROR
710
COPROCESSOR PRECISION ERROR
Performing System Diagnostics
C-13