AST RESEARCH, INC.         SOFTWARE BULLETIN #0877                11-2-93




                         PREMMIA WITH PARITY ERRORS


PROBLEM:       Premmia systems experiencing c errors under various
               environments.

CAUSE:         The cause of the parity errors has been traced to two separate
               sources.  The first, is a ground bounce within the Texas
               Instruments TACT84581 chip.  The second, is a defect in the
               Fujitsu 4MB DRAM design (Fujitsu part number 14400A-70L).

AFFECTED
SYSTEMS:       All models of Premmia systems.

SOLUTION:      BIOS version 1.04 has been released via ECN N114 eliminating
               the ground bounce.  Fujitsu DRAM part number 814400A-70L has
               been disqualified under AST part number 104000-678.