Epson 486SX - Manual (Page 158)

If the error is serious, the computer cancels further checking
and halts system initialization. The error message remains on
the screen and the computer locks up. If this happens, contact
your dealer as soon as possible.
Report the error messages when you request technical
assistance.
The following table lists all the error messages that may appear
during power-on diagnostics. If you receive
an
error message,
look it up in the table below; it directs you to the proper
troubleshooting section in this appendix. If you do not see an
error message, read the section that covers your problem.
Power-on diagnostics error messages
I
Error code Message
System board
101
102
103
105
106
107
108
Real-time clock
161
162
System board error
System board error
System board error
System board error
System board error
System board error
System board error
System options not set
System options not set
163 Time and date not set
164 Memory size error
Action
Contact dealer
Contact dealer
Run Setup; see
Chapter 2
Run Setup; see
Chapter 2
Run Setup; see
Chapter 2
Troubleshooting B-3