I would say it is possible and can be done with the right tools and equipments. If the bios or EFI does not recognize it there is ways to make it happen. Just down load the EFI hex code and modify it in every step that manages the RAM.
I am thinking about to use the flash rams from iPhones and try it since they are all the same architecture and pin out. I hope to get about 2 to 3 days to try different ones.the minimum is going to be 32GB and hope it works when it comes to buffer.