I can say for certain that the csa-mmr and gvp series II scsi controllers don't work together. No way no how. I've use suprascsi and trumpcard with no problems. The csa-mmr *may* work with a gvp series-1 controller as they were only pseudo-dma. I haven't tried this combination. I would disable the scsi card and make a boot disk to determine that the rest of the system is playing nice together.