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    AST RESEARCH, INC.         TECHNICAL BULLETIN # 1374A              12-28-95

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    		    Premmia 486 Pentium Upgrade Lock-Up

    PROBLEM

    The Premmia 486 system may not boot, may lock up, or data corruption may
    occur after upgrading the processor to a P24T Pentium Overdrive.

    CAUSE

    The AST Premmia 486 system was developed prior to the introduction of
    Intel's Pentium Overdrive strategy.  This system is not designed nor was it
    ever intended to take advantage of Intel's Pentium Overdrive technology.

    The processor socket on the system board was designed for a 486 or 486
    upgrade processor only.

    SOLUTION

    AST recommends that the Premmia 486 user not upgrade the processor using
    the Intel P24T Pentium Overdrive.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    501126-XXX      Premmia 4/33S
    501127-XXX      Premmia 4/33
    501128-XXX      Premmia 4/50D
    501129-XXX      Premmia 4/66D