oh ok I thought the 286 cpu was built into the motherboard not the caching controller. The modern caching controllers seem to be mainly for RAID cards btw.

I think benchmarks are the key to solving the mystery of if they are worthwhile or not.

I'd like my q950 to be the best it can be - but when you are choosing between a powerpro with 128mb 72-pin ram expansion (usable in 68k mode) or a scsi pds card, you'd want to be sure the benefit is there.