Ampex Megastore

Another topic.... I got that Ampex "Megastore 316". It's a ramdisk for the Honeywell H316. Connects via IO but and optionally DMC (kind of data break). Is from the early 80s and contains to times half a megabyte of core memory. Quite a mass... I have some schematics, but not all I would need. Currently it's working a bit - reading only every second word - but that looks good so far. I had to make my own cables. Perhaps I did something wrong...? Played a bit with the controller's microcode. Found no reason why it skis addresses. There must be something wrong with the bus. I have two controllers and two core modules - swapping doesn't change anything.. Does anyone on the list have experience, docs or other information to share? Kind Regards, Philipp :-)