Identifying Machine for DEC Memory

My VLC has a number of memory modules but they do not have any DEC part number on them at all. The board has "PC72N-9GG" and "JAPAN MH1M36ADJ-8" printed on it. One side has 8 chips each marked M5M44400AJ 221SK1K-7. Note that unlike the photo, there is no "horizontal" chip in the middle. The other side has four chips each marked M5M41000BJ 224GE04-8. (I think it's four ... I've just put the machine back :-)) A nearby DECdirect has: MS40-BA: VLC 8MB upgrade MS44L-BA: VS4000-60 8MB upgrade MS44-DA: VS4000-60 32MB upgrade MS44L-BC: VS4000-90 16MB upgrade MS44-DC: VS4000-90 64MB upgrade So even that doesn't help (since you really want the 2-5-2 part number, as that's what you'll usually find on the module). I did have a quick hunt on the net for IPBs for any of these systems, but with no luck. manx shows a few service manuals but they had the MS4x numbers. Antonio -- Antonio Carlini antonio at acarlini.com