I have a Amiga 500 internal RAM expansion board, that I am unable to get to work with my 500. I don't think there is anything wrong with it, I just think that for some reason it's just not sitting right in my A500. What your supposte to do is take the 68000 off the A500 MOBO and snap it into place on the board, and then sit the board over the PROC slot on the MOBO. If you live in my city and would like this board, or you dont and would still like it, Contact me Ill only charge you what it costs me to package and ship it.