                                                             Last Revised
    AST RESEARCH, INC.        TECHNICAL BULLETIN # 1470          01/06/98

    TITLE:  PowerStation Compatibility Portables

    ISSUE

       This is an informational bulletin.

       The following table provides compatibility information for AST
       portable computers and the PowerStation products. Please note the
       following:

       "Supported" means "Recommended configurations."  All documented
       features will operated correctly.

       "Not Supported" means "Configurations not recommended."  The unit
       may appear to be working, however, one or more of the documented
       features will not operate correctly.

                     PowerExec Ascent900N Ascent910N Ascent950N
                     BIOS 2.26 BIOS 2.02  BIOS 2.03  BIOS All
                     and above and above  and above

       PowerStat I   Supported Supported Supported Not Supported
                                                   See Note #3
                                                   Below

       PowerStat II  Supported Supported Supported Not Supported
                                                   See Note #3
                                                   Below

       PowerStat III Not Supp  Supported Not Supp  Supported
                     See Note #3         See Note #1
                     Below               Below

       PowerStat Pro Not Supp   Supported Supported Supported
                     See Note #2
                     Below

       Notes:

       1.  PowerExec docked w/PowerStation I :
           - With no ISA card in PS1, error message appears:
           "Power Station version 1.02.01 could not detect IDE
           IRQ."
           - With  ISA card plugged-in, no error message is
           seen, but system taken much longer time during normal
           boot up.

       2.  PowerExec docked w/PowerStation Pro System booted up
           fine.

       3.  Ascentia 950N docked w/ Power Station I, II, III:
           No power on when system is docked.  Need to press
           power switch on the Ascentia unit to turn system ON.

       This issue applies to all AST portable computer systems.

    BACKGROUND

       N/A

    ACTION

       N/A

    NOTES

       N/A

    TAN N/A

    ---------------------------------------------------------------------
    The information in this data sheet is subject to change without
    notice. AST Research, Inc. shall not be liable for technical or
    editorial errors or omissions contained herein; nor for incidental or
    consequential damages resulting from the furnishing, performance,
    or use of this material. This material contains information protected
    by copyright. No part of this material may be reproduced in any form
    without prior written consent from AST Research, Inc.
    All rights reserved.
    ---------------------------------------------------------------------
    Template Rev 02