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ISA Linear Frame Buffer
The ISA linear frame buffer is for video expansion boards that
take advantage of a linear frame buffer. See your video board
manual to see if this option applies to your board. You can
specify the buffer size to be either lMB, 2MB, or 4MB. If you
enable this option, video board performance may be improved.
(If this option is enabled, the Set Linear Frame Address
To option is set automatically.) The default setting is
Disabled.
Set Linear Frame Address To
When you enable the ISA linear frame buffer, this selection is
set automatically. When you disable the linear frame buffer, the
setting becomes N/A (not applicable).
Disable Shadow Memory Size
This option is tied to the next option, Disable Shadow
Memory Base. If you set Disable Shadow Memory Base
to either C0000H or D0000H,
you can select a Disable
Shadow Memory Size of 16KB, 32KB, 48KB, or 64KB. The
default setting is Disabled.
Disable Shadow Memory Base
This option allows you to exclude a memory location for use as
shadow RAM. The choices are in the C0000H or D0000H range,
with several settings in each range. For example, within the
C0000H range, you can choose C0000H, C4000H, CS000H, or
CCOOOH.
This option affects the previous option, Disable Shadow
Memory Size. Once you set this option, you can alter the
Disable Shadow Memory Size option.
Running the Setup Program 2-9