AST RESEARCH, INC.        TECHNICAL BULLETIN # 1058                  1-26-95




		POWEREXEC 4/25SL/GRID AND TC6245 CARD IN POWERSTATION 


PROBLEM
The PowerExec 4/25SL 3.3 volt system does not detect the Thomas Conrad TC6245 
Arcnet adapter installed in the PowerStation, while running diagnostics 
supplied by Thomas Conrad.

CAUSE
The PowerExec 4/25SL is designed as a 3.3 volt system.  The TC6245 network 
card requires 5 volts.  The 5 volt card is not compatible with the 3.3 volt 
system.

SYSTEMS AFFECTED
AST PART NUMBER    DESCRIPTION

501115-201     POWEREXEC 4/25SL 3 VOLT

SOLUTION
The PowerExec is operating as designed.  Use an adapter that is compatible 
with 3.3 volt systems.