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AST RESEARCH, INC.         TECHNICAL BULLETIN # 1216                6-6-95

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MANHATTAN G590 RECOGNIZES ONLY 64MB


PROBLEM

When the Manhattan G590 is configured with more than 64MB of system memory, 
only the first 64MB of memory will be recognized under Windows NT 3.5 and 
Novell Netware 4.1.  When attempting to manually register the memory under 
Novell 4.1, the system will recognize all but the last 16MB of installed 
memory.


CAUSE

Windows NT 3.5 and Novell Netware 4.1 require an INT15 call to recognize 
greater than 64MB of memory in the system.


SYSTEMS AFFECTED
AST PART NUMBER AND DESCRIPTION   REVISION

501723-XXX      MANHATTAN G590     All Models


SOLUTION

Manhattan G590 BIOS release 2.00 (P/N 905545-038) adds the INT15 call to 
the BIOS allowing Windows NT 3.5 to automatically detect and use all memory 
in the system, up to the maximum 128MB.

File 05545038.EXE can be found on AST's BBS (817) 230-6850, in the "Systems"
file area.  AST's BBS supports modem speeds up to 28.8k bps.
The above file will also be posted on: 

CompuServe 
Go ASTSUPPORT

AST Worldwide Web Site
http://www.ast.com

For further information on the Manhattan G590 BIOS, see Software Bulletin 
# 0186 in the SBS library of AST's BBS.

Novell Netware 4.1 requires BIOS release 2.00 to use memory above 64MB. 
However, Novell Netware will not automatically detect the memory over 64MB. 
The memory must be manually registered through Novell Netware 4.1 in order to 
be used by the system.  For more information on manually registering system 
memory, see your Novell Netware documentation.