============================================================================= AST RESEARCH, INC. TECHNICAL BULLETIN #0687 05-30-91 ============================================================================= PREMIUM/386-25, 33 AND CORE TAPE BACK UP UNIT It has been reported that the Core Tape backup unit, configured with a Archive model 2060L tape drive and a SCSI Everex model EV-811 controller will not function properly in a Premium/386-25 and a Premium/386-33. The user may experience system hang-ups when attempting a backup, or the message "communication timeout" will be displayed on the screen. The problem lies within the Core Tape back-up unit not operating correctly with processor speeds above 20MHz. Customers experiencing this problem should contact Core Technical Support at (407) 997-6033.