Personal Computer User Manual

Power-on diagnostics error codes and messages Table
Error code Message
Notes
System Board
101 SYSTEM BOARD ERROR
INTC (8259)
102 SYSTEM BOARD ERROR
Timer (8254)
103 SYSTEM BOARD ERROR
Timer (8254)
105 SYSTEM BOARD ERROR
NMI generated (Parity
error or other)
106
SYSTEM BOARD ERROR
DMA page register
failure
108 SYSTEM BOARD ERROR
Timer (8254)
Real-time Clock
161 SYSTEM OPTIONS NOT SET
Power failure
162 SYSTEM OPTIONS NOT SET
Check-sum error
163 TIME AND DATE NOT SET
Invalid value
164 MEMORY SIZE ERROR
Memory
181
SYSTEM EXTENDED MEMORY Memory overlap
ERROR
182 SYSTEM RESERVED MEMORY Memory overlap
ERROR
(384KB)
201 RAM ERROR
First 64KB
202 MEMORY ADDRESS ERROR
Memory data or
parity error
203 MEMORY ADDRESS ERROR
Memory data or
parity error
Keyboard
301
KEYBOARD ERROR
303
KEYBOARD OR 8042 ERROR
304
KEYBOARD OR 8042 ERROR
Diskette drive(s) and controller
601 DISKETTE ERROR
Parallel port (printer interface)
901 PARALLEL PORT ERROR
Serial port (RS-232C port)
1101
SERIAL PORT ERROR
B-2
Power-on Diagnostics