On Tuesday, May 4, 2004, at 01:11 Canada/Eastern, Jim Pacyga wrote: > On 3 May 2004, at 07:36, Alex wrote: > >> [...] If the Mac's controller doesn't support 48-bit LBA, the largest >> hard disk capacity which can be used is 120GiB (or 137GB). Larger >> hard disks can be installed, but the Mac will not "see" more than >> that. The solution is to get a new controller, either by installing a >> new ATA card (SATA preferably), or by using an external enclosure >> which is 48-bit capable. Which alternative is best depends on >> specific needs. > > [...] If you go under the Hardware->ATA section on the left hand nav > bar, you will get the ATA device tree. > > Each ATA tree should have the ATA type as the root. > > E.g., on my G4/500 I have an ATA-4 and an ATA-3 tree. On my iBook, > just ATA-4. > > If you have ATA-6 that would support > 137Gb. For newer G5's you > should have ATA-7.[...] Jim, I'm not quite sure I see the connection between your post and mine -- unless it is that in Panther one can use System Profiler to determine whether the ATA controller supports 48-bit LBA. f