You need to ask someone like
stachu100 or anyone else who repairs these boards.
The 68060 socket on these things are infeasibly fragile by design. Press too hard or remove & replace the 060 too many times and you'll need to pay €150+ to get the socket re-worked.
The SCSI on this board is amazing but incorrect active SCSI terminations can blow up the NCR SCSI chip. There are countless CSPPC or CSMKIII boards with dead SCSI chips. Great care and intelligence is required whenever changing the SCSI chain adding and removing devices. But you're mad to connect anything other than just one Ultra Wide SCSI III hard drive as it can slow down everything on the bus.
