I don't think the 590 will be the problem.
It has an SCSI interface, and hence should support drives upto 180GB and more.
The problem is the software.
I recently got a 4-GB harddrive working on an old adapter. What i did was use HDInstTools from Aminet to partition and QUICK-Format the drive.
You need at least FastFileSystem, though, and verifying the drive failed. Nevertheless, after using a quick format without verify the drive (or rather, the partition I made) works very well.
Have fun,
McTrinsic