MR> The issue with ISA cards, incidentally, is whether or not they
 MR> perform bus mastering DMA.  Since ISA slots only have a 24-bit
 MR> DMA available to them, they limit OS/2's direct addressing
 MR> ability to 16MB.  Anything above that is used as fast swap space.

But if you have an adaptec you can use the switch /DBUFF on your driver to
become double buffering and so you can use the full memory amount. This will
slow down any disk transfer but tunes the memory usage up.

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