That's not a general case...
Problems encountered to get decent SCSI support are not linked to the chip but to different card design... so every card tested works with MOS without pb, exept 895 where there is a small problem to fix.. Concerning the firmware path, My 810 and one model of 875 is working correctly... So the fect you buy a 810 doesn't give you any guarantee of good functionning NOW.

Hope this is clear.

I already tested a non working 810 card for info