@tonsing
I don't know, and when i don't know, i search the world (very) wide web ^^
You can do that or wait for someone else, who knows, answer.

All i can say is on MX4, you can do this between 16 and 32 GB memory motherboard, all the rest's the same (but MX4 is particular, because you can't install uTouch on the majority of them, 16 or 32).