"The BIOS can not shadow the ROM into system memory."
This is usually caused by the ROM on a card trying to use the same memory space.
Remember all of the ROMs have only the memory addresses from C800 to FFFF in the first megabyte available for shadow.
This was designed in in the first IBM PC and remains to this day.
Remove the other cards, and turn off both system ROM shadow, and video ROM shadow.
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