Monochrome
display adapter
and CRT
401
402
403
404
Color graphics
adapter/display
501
503
504
505
506
507
508
510
Floppy disk
drives /controller
601
602
603
604
605
606
607
Math
coprocessor
(80287)
701
702
703
704
705
706
707
708
709
710
Parallel port
901
V-RAM ERROR
VIDEO SIGNAL ERROR
ATTRIBUTE ERROR
CHARACTER SET ERROR
V-RAM ERROR
ATTRIBUTE ERROR
CHARACTER SET ERROR
40-COLUMN CHARACTER SET ERROR
COLOR GRAPHICS ERROR
640x200 GRAPHICS MODE ERROR
SCREEN PAGING ERROR
COLOR VIDEO ERROR
FLOPPY DISK CONTROLLER ERROR
SEQUENTIAL SEEK ERROR
RANDOM SEEK ERROR
WRITE ERROR
READ ERROR
DISK CHANGE CHECK REMOVE ERROR
DISK CHANGE CHECK INSERT ERROR
NOT INSTALLED
COPROCESSOR INITIALIZE ERROR
COPROCESSOR INVALID OPERATION MASK ERROR
COPROCESSOR ST FIELD ERROR
COPROCESSOR COMPARISON ERROR
COPROCESSOR ZERO DIVIDE MASK ERROR
COPROCESSOR ADDITION ERROR
COPROCESSOR SUBTRACTION ERROR
COPROCESSOR MULTIPLICATION ERROR
COPROCESSOR PRECISION ERROR
ERROR PIN
D-30
Performing System Diagnostics