On Nov 13, 2005, at 12:46 AM, Aaron wrote: > My guess is that the jumpers on the two drives were set using the > Master/Slave method, which apparently is correct for the ATA 33 bus > but not for the ATA 66 bus, which, like the ATA 100 bus, uses Cable > Select! Keeping things simple. Cable select has nothing to do with which interface you're using. It has everything to do with having a cable select enabled cable (i.e. the correct wire is snipped at the correct location) and the drives jumpered to cable select. Phil