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AST RESEARCH, INC.          TECHNICAL BULLETIN # 1110               3-24-95

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			    PREMMIA SE AND 16MB SIMM PROBLEM UNDER OS/2

PROBLEM

The Premmia SE server may lock up while running OS/2 with error Trap 0002, 
during high volume data transfers.The system may also experience intermittent 
parity errors.

CAUSE

SIMM module, part number 104000-195, contains Toshiba DRAM.  The Toshiba part 
numbers are:

	THM 364020S-70
	THM364020SG-70

Additional reference number found on actual DRAM chip:
	
Toshiba DRAM part number TC5117400J-70

PARTS AFFECTED
AST PART NUMBER AND DESCRIPTION
	
501159-004     SIMM Kit 32MB x36 70ns/72pin JEDEC
520131-004     16MB 70ns PRM SIMM CFG

SOLUTION

If your Premmia SE system has been upgraded to 2 or more 16MB SIMMs 
(P/Ns THM 368020SG-70 and THM 364020S-70), and your system is experiencing 
problems running OS/2 or intermittent parity errors, replace the SIMMs with 
SIMM Kit P/N 501159-004.