Tom; I'm afraid I never saw any installation info to indicate a Serial ATA card was necessary to install the new drive. The new Serial ATA drive works wonderfully so far, it is the other two original drives that are now showing that only part of their 180 GB capacity is available. Kenneth On Nov 24, 2007, at 1:33 PM, Technophobic_Tom at comcast.net wrote: >> The new drive is not SCSI ( Link to Drive: http:// >> eshop.macsales.com/item/Seagate/ST3750640A/ ). >> My G4 simply came with the two ATA drives in the rear >> tray, then I added the new ATA drive in the front tray. > > Well, could that be your problem? It's a serial ATA! Do you have an > SATA card installed? > > Also, I think that "front tray" interface is slower than the "rear > tray". When you buy faster ATA drives, your system performance > might be better if you keep the system files on the faster interface. > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4