Appendix A
Error Codes and Messages
This appendix lists all the error codes and messages that may appear
during diagnostics checks.
Table A-1.
Error
codes and messages
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 SELFDIAGNOSTIC ERROR
109
8259 INTERRUPT CONTROLLERERROR
111
146818 CMOS BATTERYERROR
112
146818 CMOS CHECKSUMERROR
113
8088 INSTRUCTIONERROR
Memory
201
MEMORY/PARITY ERROR
Keyboard
301
8048 ERROR
302
NON-STANDARDOR DEFECTIVE KEYBOARD
Monochrome display adapter and CRT
401
V-RAM ERROR
402 VIDEO SIGNAL ALWAYS HIGH/LOW
403
ATTRIBUTEERROR
404
CHARACTERSET ERROR
A-1