The other HD that was in the external only registered 127 GB but it's working on the Dell Dimension 2350 with a Promise ATA 100 PCI adapter (the other cable has the Sony DRU-710? DVD drive) and is, for the most part, transferring files. It might be that the secondary IDE channel has problems, or not, but at least it's all happening. In the end, all the data will be transferred with some editing of duplicates getting done. In the end it's the backwards way but I'll see if the drive will work again in the USB housing with the Win 7 computers again. I don't know why and I'm not going to dig to remember right now, I'm just going to get it done. I've got other things to do and I didn't marry the stuff.