The A2630 is a Commodore accelerator and none of them ever took memory simms. Yeah I have one and the DKB 2632 card but it's not as good as you think. SCSI suffers greatly with this combo due to the 32-bit vs 16-bit issues of DMA. You should see about getting another CPU card with onboard SCSI. Though I have a Fusion Forty and a 2091 and it seems to be working ok, not very fast SCSI rates though, but I recall it's faster than the 2630 and SCSI I had been trying to get to work a few years ago. Maybe it's the combo of card, I did have to swap out my GVP Series II as it did not like the F40 too much, the 2091 with Rev 7 ROMs seems to behave a lot better with the F40!
Years ago I had a GVP 040/33MHz combo board with 16MB and SCSI, that card rocked!