AST RESEARCH TECHNICAL BULLETIN TB-0272 04/28/87 PREVIEW I\O AND THE PREMIUM 286 A possible conflict exists between the Preview I\O and the Premium 286. The symptoms are an error message of 1 long - 2 short beeps from the computer and failure of the computer to boot-up. The conditions exist only with earlier revisions, (X1, X7 or A), of the Preview I\O. For boards exhibiting these symptoms, contact AST Product Support Department.