DEC Pro 350/380 Memory Cards - Interchangeability?

[Mattis Lind]

>
> I misremembered the 350 (I don't have one): it can have memory in the I/O
> card cage, but it also has memory daughter cards, two of them, with 40 pin
> connectors.
>
>
>
Many years ago I upgraded those daughter cards and changed them from using
64kbit chips to 256 kbit chips. I don't remember the exact type which I
used. It was very successful. The system went from 512kbyte total to 1280
kbyte total. There were no stability issues what I remember so the refresh
seemed to have worked fine.