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AST RESEARCH, INC.          TECHNICAL BULLETIN # 1442                2-15-96

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	      Advantage! Video Upgrade Kit Can Cause Video Corruption


PROBLEM

After installing the 1 MB video upgrade kit (p/n 501902-001B) in an 
Advantage! system, the user  may experience video corruption.


CAUSE

The 70 nanosecond DRAMs included in the kit do not meet the timing 
requirements of the ATI graphics subsystem in the Advantage! system.


SOLUTION

Use Video Memory Upgrade Kit, part number 501902-001C.  
This kit contains 60 nanosecond DRAMs which meet the necessary timing 
requirements for the video subsystem.


SYSTEMS AFFECTED
AST PART NUMBER AND DESCRIPTION

501766-XXX      Advantage! 610
501839-001      Advantage! 610
501766-401      Advantage! 611
501855-XXX      Advantage! 612
501766-XXX      Advantage! 613E
501768-XXX      Advantage! 614
501829-XXX      Advantage! 810
501856-XXX      Advantage! 812
501769-XXX      Advantage! 814
501794-801      Advantage! 816
501794-03X      Advantage! 818
501920-X01      Bravo MS P/775
501921-X01      Bravo MS P/100
501894-X01      Bravo MS P/133
501980-801      Bravo MS P/166
501922-501      Bravo MS-T P/100 
501895-801      Bravo MS-T P/133
501981-801      Bravo MS-T P/166