Running a ramtest might be a good idea. Also, you could try just installing one fastram bank at a time (and if it screws up on the first bank, swap those chips for another 8.)
The issue I had was mixed static column and fast page chips. My solution was making sure the first chip in the first bank was FPM, so the 3000 treated them all as FPM and not SC. SC can pretend to be FPM, but FPM can't act like SC.
edit: checking the first ZIP chip in the first bank shouldn't be too tough, my FPMs had 400 in the number while the SCs were 402's (lucky me, there are weirder part numbers around.)
