Vector Graphics PROM/RAM Board?

[Win Heagy]

Does anyone have experience with the Vector Graphics PROM/RAM
card...like this one.
http://www.classiccmp.org/dunfield/s100c/vector/promram.jpg
(This is not my card...mine is not jumpered in upper right.)
I have some documentation with mine and two PROMs loaded in A0 and A1
(VIMON loaded on them), but am having some trouble getting any
response from it.  Most likely a config issue or a conflict with other
RAM.

Feel free to ping me at wheagy at gmail.com

Thanks...Win