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    AST RESEARCH, INC.         TECHNICAL BULLETIN # 1086                3-10-95

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    			  PREMIUM CUPID TE BIOS UPGRADE AND LED PROBLEM

    PROBLEM:

    When upgrading the Premium Cupid TE system from BIOS version 1.14 to 2.0, the
    "RUN" LED that is located on the control panel does not light.

    CAUSE:

    The revision 2.0 BIOS was not written to be used in the older Cupid TE system
    (P/N 500766-XXX) that utilizes the 202377-001 MLB (Main Logic Board) but was
    intended for use in the then new "Tower II" (Premium SE 500887-XXX and
    500888-XXX) which was built around the 202377-002 MLB.  As the version 2.0
    BIOS was intended for use in the Tower II (which did not have a "RUN" light)
    the code supporting the "RUN" light was eliminated to allow room for other
    needed features.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    500766-XXX     PREMIUM CUPID TE 486-25
    500757-XXX     PREMIUM CUPID TE 386-33
    500822-XXX     PREMIUM CUPID TE 486-33

    SOLUTION:

    Either continue using version 2.0 BIOS (Kit P/N 500775-005)

    	LO BYTE P/N 237816-005
    	HI BYTE P/N 237817-005

    in the older machines which will result in a non-functional "RUN" LED, or use
    the correct version 1.14 BIOS (Kit P/N 510157-003)

    	LO BYTE P/N 237816-004
    	HI BYTE P/N 237817-004).

    with a functional "RUN" LED.