Table A-1. Error codes and messages (continued)

Error code Message

Color graphics adapter and CRT

501

V-RAM ERROR

503

ATTRIBUTEERROR

504CHARACTERSET ERROR

505

40-COLUMN CHARACTERSET ERROR

506

320

x 200 GRAPHICS

MODE

ERROR

507

640

x 200 GRAPHICS

MODE

ERROR

508SCREEN PAGING ERROR

509LIGHT PEN ERROR

510COLOR VIDEO ERROR

Floppy disk drives and controller

601FLOPPYDISK CONTROLLERERROR

602SEQUENTIAL SEEK ERROR

603

RANDOM SEEK ERROR

604WRITEERROR

605READ ERROR

Math coprocessor (8087)

701COPROCESSORNOT INSTALLED

702COPROCESSOR INITIALIZEERROR

703COPROCESSOR INVALID OPERATION MASK ERROR

704COPROCESSOR ST FIELD ERROR

705

COPROCESSOR

COMPARISON

ERROR

706

COPROCESSOR

ZERO DIVIDE

MASK ERROR

707COPROCESSOR ADDITION ERROR

708

COPROCESSORSUBTRACTION ERROR

709

COPROCESSOR MULTIPLICATION ERROR

710COPROCESSOR PRECISION ERROR

Parallel port

901ERROR PIN p

Parallel port on video adapter

8101

ERROR PIN p

A-2