How did the logic board connect to the hard drive?”
The logic board was screwed onto the drive with normal screws. As for the electrical connection, there were some metal contacts that just press together – no plug. You can see them in the 4th photo. There are 3 metal strips next to the top of the logic board and the spindle on the drive. And a row of connectors in a hole cut out of the white thing. The white thing you can see is just a bit of foam padding to prevent other electrical contacts – it’s just loosely placed. I was pleasantly surprised when I unscrewed the logic board for the first time – that it just lifted off and that was all there was to it. I love elegant designs.
