I mucked around with an old PC I had in my basement. I had most of it apart (the hard drive and floppy), and I spent an hour removing the connectors, just to see where all the wires went. I learned a lot. By the end of the evening, I had it booting in Windows fine.
Use the arrows to move through the three photos. Click a photo to open it in the lightbox, where you can zoom in or download the original.