still "wrong version of DSP code" error

[MTUSUPPORT]

That board is not Plug and Play, so you manually have to check the jumpers on the board and the dipswitches as to which IRQ and Memory addresses you are using.

As I recall these are all in the Manual. I am very unexperienced on that board now, as it has been out of Production since before 96.

I would check all of the Memory Addresses and the IRQ's to make sure that is not the problem. Also try cleaning the board off with a qtip and Alcohol, on the gold fingers. Press all of the Socketed chips down in their sockets to make sure they are tightly seated.