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Error Codes and Messages
This table lists all the error codes and messages that may appear
during diagnostics checks.
Error code
Message
System board
101
8088 CPU ERROR
102
27128 ROM CHECKSUM ERROR
103
8254 TIMER COUNTER REGISTER ERROR
104
8254 TIMER COUNTER ERROR
105
8237 DMA CONTROLLER REGISTER ERROR
105
8237 DMA REFRESH ERROR
108
8048 SELF DIAGNOSTIC ERROR
109
8259 INTERRUPT CONTROLLER ERROR
111
146818 CMOS BATTERY ERROR
112
146818 CMOS CHECKSUM ERROR
113
8088 INSTRUCTION ERROR
Memory
201
MEMORY/PARlTY ERROR
Keyboard
301
8048 ERROR
302
NON-STANDARD OR DEFECTIVE KEYBOARD
Monochrome
display
adapter and
CRT
401
V-RAM ERROR
402
VIDEO SIGNAL ALWAYS HIGH/LOW
403
ATTRIBUTE ERROR
404
CHARACTER SET ERROR
Color graphics adapter and CRT
501
V-RAM ERROR
503
ATTRIBUTE ERROR
504
CHARACTER SET ERROR
505
40-COLUMN CHARACTER SET ERROR
506
320x200 GRAPHICS MODE ERROR
507 640x200 GRAPHICS MODE ERROR
508
SCREEN PAGING ERROR
509 LIGHT PEN ERROR
510
COLOR VIDEO ERROR
D-36
Performing System Diagnostics