To make a long story short, a few months ago I bought a PATA 500 GB HDD for a project that didn't really work. So now I'm stuck with it in the old computer because the only other thing that takes PATA is my PowerMac. Last week, I plugged the drive in and it got just over 128 GB registered. Is there any way I can make the PowerMac see the whole 500 GB without buying a new ATA controller or adapters? Thanks.