I have a very old Motherboard based PC that I had assembled sometime in 2004. I don’t use it anymore but it still works just fine. Socket ‘A’ Biostar M7NCG 400 board.
Its manual shows a header called JDJ1. Audio DJ Header. Five pins on the connector. However there’s no further information in the manual.
I am curious what this header was meant for? In my little experience with hardware boards, I have not seen it again on any other board.
What external device it would connect to?
Here’s pin out and a snapshot from the manual.
Google search did not yield any meaningful results.