Maybe if you gave specific examples of what you are trying to use in terms of old hardware this question would be easier to answer. Very specific. Which models of which hardware are you trying to get working?
AGP/Modern PCI
Older PCI with master/slave problems
ISA PnP
ISA 16-bit
ISA 8-bit
EISA
MFM/RLL Hard disks with debug g=c800:5
Maybe if you gave specific examples of what you are trying to use in terms of old hardware this question would be easier to answer. Very specific. Which models of which hardware are you trying to get working?

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