    AST Research, Inc.          Technical Bulletin #1326               10/12/95

             BRAVO MS PENTIUM MAY EXPERIENCE PROBLEMS WITH ISA BOARDS

    Problem:         Various issues, including ISA video adapters displaying
    		 garbled characters; SCSI add-in adapters do not detect SCSI
    		 hard drives.

    Cause:           The rise time in I/O Channel Ready may not be sufficient
    		 for some ISA adapter cards. The effect is insufficient
    		 initialization or no initialization at all.

    Prerequisites:   A full backup of all data on the hard drive in the computer
    		 is strongly suggested.

    Solution:        Replace riser card P/N# 202720-001 with P/N# 202720-001
    		 Rev. A or greater.

    Systems
    Affected:        Part Number                 Description
    		 ________________________________________
    		 501533-XXX                  BRAVO MS P-60
    		 501534-XXX                  BRAVO MS P-90
    		 501679-XXX                  BRAVO MS P-60
    		 501613-XXX                  BRAVO MS P-90
    		 501765-XXX                  BRAVO MS P-90
    		 501817-XXX                  BRAVO MS P-100
    		 501754-XXX                  BRAVO MS P-100
    		 501701-XXX                  BRAVO MS P-75
    		 501543-XXX                  ADV!  RMS P-60
    		 501544-XXX                  ADV!  RMS P-90
    		 501710-XXX                  P III P-75
    		 501861-XXX                  P III P-100
    		 501926-XXX                  P III P-133
    		 501695-XXX                  ADV! 6075P
    		 501713-XXX                  ADV! 6060P

    Instructions:    Removal and replacement of system " Field Replaceable
    		 Units (FRU) should only be performed according to
    		 installation procedures approved and prescribed by AST
    		 Research, Inc.