Using an Expanded Memory Board with EMM386.EXE (73729)
The information in this article applies to:
• Microsoft MS-DOS operating system 5.0
• Microsoft Windows 3.0
This article was previously published under Q73729
It is possible to use an expanded memory board on a 386 machine and
still use EMM386.EXE to load devices into the upper memory area (UMA).
However, you must configure the memory on the board as extended
To use an expanded memory board in conjunction with EMM386, do the
• Configure the EMM board as extended.
• Enter the expanded memory board device driver first in the
• After entering the HIMEM line, use the EMM386 statement. Exclude
the address range of the memory board's page frame.
An example of this technique is:
DEVICE=C:\DOS\EMM386.EXE RAM 1024 X=C000-C7FF
This information applies to EMM386.SYS in MS-DOS version 4.xx, and
Windows 3.0. Some expanded memory boards may be incompatible with the
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