On 10/23/03 11:02 AM, "Tracker at aol.com" <Tracker at aol.com> wrote: > Additionally, some Macs will refuse to recognize a drive set to CS if there > is a second drive also set to CS on the same bus ribbon. In that case, try > setting the drives to Master and Slave and install them on the IDE bus ribbon > with > the Master drive closest to the mother board. Curiously, it's the newer (2003, FW800, Dual 1.25 GHz) that won't boot with both drives set to Cable Select. I'll try switching the jumpers so the drive closest to the motherboard is set as master, the other as slave, and see what happens. Am I understanding it correctly that "Master" doesn't necessarily have to be the boot drive? Is there any advantage to having one drive on each IDE bus (this box has room for FOUR IDE drives on two separate carriers). Jim Robertson --