    AST RESEARCH, INC.         TECHNICAL BULLETIN #0716                  10-28-91

                AST PREMIUM II 386SX-20 AND TRAK ENGINEERING SOFTWARE

    PROBLEM:       The TRAK Engineering application software "Fuel Management
                   System" will not communicate with TRAK's custom control box
                   through the Premium II 386SX-20 Com port.

    AFFECTED
    SYSTEMS:       AST Premium II 386SX-20 with the following system board part
                   number:

                   202373-003     Revision X4 and below

    CAUSE:         Incompatibility between TRAK Engineering software and control
                   box and AST's Com port on the Premium II 386SX-20 system.

    SOLUTION:      This problem has been resolved.  Customers experiencing this
                   problem should contact AST and have their system board
                   upgraded to revision X5 or above.