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    AST RESEARCH, INC.             TECHNICAL BULLETIN # 1042                1-6-95

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                                   POWERSTATION II PS2 FAN

                 This is an informational bulletin.

                 The Delta power supply (DBS-110KB) used in some PowerStation II
                 units has a built in RC timer which keeps the fan running about
                 three more minutes after the notebook is removed from the docking
                 station or the system is powered-down.

                 If the notebook has been ON for a short period of time, there will
                 be no delay in turning the fan off.  The fan also stays ON during
                 battery charging, even if the notebook is powered-off.

                 All these are safeguards to avoid temperature build up inside the
                 power supply.

    SYSTEMS
    AFFECTED:        AST
                 PART NUMBER      DESCRIPTION

                 501600-001      POWERSTATION II