User`s manual

486-OCV Plus
Appendix B u B-1
v Appendix B: System Error Report
During the POST (Power On Self Test) routines, which
are performed each time the system is powered on,
errors may occur. Errors can be fatal or non-fatal.
Fatal Errors
Fatal errors are those which will not allow a system to
continue the boot-up procedure. If a fatal error occurs,
you should consult your system manufacturer for repair.
Beep Count Error Message
1 Refresh Failure
2 Parity Error
3 Base 64KB Memory Failure
4 Timer Not Operational
5 Processor Error
6 8042 - Gate A20 Failure
7 Processor Exception Interrupt Error
8 Display Memory Read/Write Error
9 ROM Checksum Error
10 CMOS Shutdown Read/Write Error