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AST RESEARCH, INC.             SOFTWARE BULLETIN #0166                  5-24-94

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                      BRAVO NB 486/25 SX EXTERNAL KEYBOARD BEEPS


Production Release 1.05                 Available: March 15, 1994

                                        3.5" diskette 1 of 1
Revision:       A

Part Numbers:   905534-031      BIOS FL UPD AEX/BNB 4/25 R1.05
                501473-001      BIOS UPG BNB/AEX SX25 R1.05
                237025-001      SYS CNTLR BNB/AEX 4/25 V3F11 R1.0


        PROBLEMS RESOLVED:

        - When the unit is attached to an AST external keyboard using the
          QUANTA keyboard controller, the unit beeps every 10 to 20 characters
          and the system eventually locks up.  The problem was resolved with
          BIOS upgrade 1.05 which includes a FLASH diskette and a system and
          keyboard controller chip.

          Order part numbers listed above.

        ENHANCEMENTS:

        - None.