Gigabyte GA-486AM User Manual page 28

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systems with 640 K or more memory installed on
the motherboard.
Extended Memory
The BIOS determines how much extended memory is
presented during the POST. This is the amount
of memory located above 1 MB in the CPU's
memory address map.
Expanded Memory
Expanded Memory
Lotus/Intel/Microsoft (LIM) standard as EMS.
Many standard DOS applications can not utilize
memory above
Specification (EMS) swaps memory which is not
utilized by DOS with a section, or frame, so
these applications can access to all of the
system memory. Memory can be swapped by EMS is
usually 64KB within 1 MB or memory above 1 MB,
depending on the chipset design.
Expanded memory device driver is required to
use memory as Expanded Memory.
Other Memory
This refers to the memory located in the 640KB
to 1024KB address space. This is the memory
that can be used for different applications.
DOS uses this area to load device drivers to
keep as much base memory free for application
programs. Most use for this area is Shadow RAM.
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in memory defined
64KB, the Expanded
4-10
BIOS Configuration
by the
Memory