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Assign IRQ for VGA
For most PCI cards, you do not want your system to assign an IRQ to
the VGA. However, for some older PCI cards, you do. Enabling this
function allows the system to assign an IRQ.
OS select for DRAM > 64 MB
If you are using IBM OS/2, and more than 64MB of memory, you must
Enable this field.
Video BIOS Shadow
This function allows BIOS to "shadow" firmware-to copy it from
ROM into the system RAM. Once there, the CPU can read the firm-
ware through the 16-bit or 32-bit DRAM BUS. Firmware that is not
shadowed is read through the 8-bit X BUS. Shadowing improves the
performance of the system BIOS and ROM firmware for expansion
peripherals, but reduces the amount of high memory available for
loading device drivers. Rather than shadowing all the available
memory sections at once, you should Enable shadowing of each
memory section independently, to see how it affects performance.
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