Yep. Like IBM dell has some proprietary crap that is non-spec Notice two extra gold pins on the board connector? (On the fingers) They offset a port slightly. That way they save money using a single port and a splitter board with two extra power connectors on the mobo socket. The slightly smaller non-atx board board no longer requires licensing since it’s ATX compatible. Not ATX. IBM, and VIA, both do the same thing.
The board itself is a passive pass through. The only “active” aspect being a risc controller that puts both sockets on opposite cycles of the cpu clock: up and down. It’s basically Dell’s implementation of a method Woz came up with in 79! Works great at 16MHz. Not so well at 3+GHz!
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