AST RESEARCH, INC.         TECHNICAL BULLETIN #0830                  05-20-93




                   MANHATTAN SMP AND AST RAID CONTROLLERS


PROBLEM:       When installing the AST Empire Disk Array controllers (part
               number 202414-002 and 230355-002), the side door of the system
               may not close properly.

CAUSE:         The side door of the Manhattan SMP has a metal bracket that
               holds the boards in place during shipment.  The height of the
               Empire disk array controller with cables installed may be too
               tall to allow the side door to close properly.

SOLUTION:      When the AST Empire disk array controllers are used, the metal
               PCB retainer must be removed.  This can be accomplished by the
               removal of one screw located on the upper side of the
               retainer.  Slide the retainer upward about half an inch, and
               pull the bottom outwards, completely removing it by sliding it
               down.

NOTE:  The metal PCB retainer bracket will be removed on future product and
       will be replaced by a foam retainer.