Each page starts with some common information on the page and by "the arrow " or a submenu on the right you may choose for the details.

Preparing this website, it was clear that I had to make choices from the huge available material. I know that is an arbitrary one.
A lot had to be adapt to publish on the web.

For the mainboard, the modifications and extensions from that PC-board you may choose on the right-hand a subject you want to see more of.
I'm grateful for any reaction or suggestion.