I'm trying to frankenstein a couple of machines. I have several ATA and SCSIu3 drives that will work but I also have a stack of much larger capacity drives that have been removed from external enclosures and they are PATA. What's the difference? Do I need to get new controller cards? Why won't they show up on the ATA buses? Everything is jumpered correctly and the cables function fine. Yes, I've made sure the cables are 80-wire. I'm at a complete loss and need some explanation. Anyone have any ideas?
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