I need a list of every agp mobos that support LGA-775.?

It is going to be hard to pull up much history on these boards, as years ago they were discontinued. You are talking about boards that weren't even ready for core2duo processors. Barely even Dual core processors. You will have to go to each manufactures site and just dig for yourself to find all these boards info, even if they have them posted still is the main thing...