Specifications

Troubleshooting and Error Messages
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Serial ports do
not work.
Interrupt conflicts.
Serial ports not
enabled in CMOS
setup.
Incorrect base
address setting.
Port hardware
failure.
An external peripheral may be using the
same interrupts as COM1 and/or
COMA/B. Verify that no other device is
using IRQ3 or IRQ4.
Check BIOS settings.
Be sure all software is configured to find
the serial ports at the addresses chosen in
the BIOS setup.
Replace the unit.
System hangs
either before or
after operating
system boot.
System clock
signal degradation.
Noise entering the EPC-30 system
through the connection of a peripheral
device may be degrading the CPU clock.
Disconnect the peripheral device and
reboot the system to verify system clock
integrity.
Floppy
problems -
can’t read
floppy drive.
Floppy uses DMA1
not DMA2; any OS
that does not use
the BIOS (i.e.,
QNX) won’t
recognize the
floppy.
Cable has a twist.
No workaround.
Use a straight-through cable.
Common Error Messages
This section contains a summary of error and warning messages in
alphabetical order by the message text. The BIOS or MS-DOS generates
these messages, which typically relate to your hardware configuration. If you
experience a system failure after you make changes in the BIOS setup
menus, you may be able to correct the problem by entering setup and
restoring the original values.
BAD OR MISSING COMMAND INTERPRETER
DOS