    AST RESEARCH, INC.         TECHNICAL BULLETIN #0860               08-19-93

                     BRAVO NB/ADVANTAGE EX INTERNAL SERIAL PORT

    The System setup for AST Bravo NB and Advantage EX systems contains a choice
    to enable or disable the internal (COM 1) serial port.  This setting is for
    power management functions only.  If the field is set to "Disable", the
    hardware is turned off and power is saved by not checking the port.

    However, it is important to note that even though the hardware for COM 1 is
    turned off, the system still recognizes the internal serial port as COM 1 and
    IRQ 4.  Therefore no other devices can be configured using COM 1 and IRQ 4.