Ok, the actual A590 itself is working. I put in an additional 2mb of RAM and the amiga is seeing it all.
The problem is, it's not seeing the 2GB SCSI HDD I also put in.
I set the dip switches so it's the only SCSI drive in there, and I set delayed boot.
But under workbench, the icon is just not there.
The drive was pulled from a working computer. The drive itself does work.
Is there something else special I had to do? Should it have been fdisked so there were no dos partitions? Thanks.