I used that for a while too a gvp scsi card/mem card.
Not for the memory though but for setting up an extra scsiscanner.
But the memory was there and was about half the speed off the simms onboard the 4000(if I remember correctly.)
And it still is better I think too have some extra slow ram then no ram.
I would go that way as they are as already said not expensive.
And it will give you a nice scsi controller.
