Upgrading the NMS-8280

The memory upgrade requires a steady hand and offcourse the dram chips. You can find the exact instructions on the site of bas as well. The documentation is in Dutch I think but translation is no problem if you need it.

Took a quick look and, while I obviously didn't understand a single word =), the pictures were more than enough to show me that it must be some kind of soldering and rewiring hell. =(
What I didn't notice at first, though, is that the guy apparently doesn't sell 'loose' RAM chips. =(

one word. e-bay

you can upgrade to 2+ and the memory counter in on the 2+ rom
but before see schematics on HansO site , required modification for the signal synchro use for digit
look more upgrade here : http://www.msxvillage.fr/forum/topic.php?id=1343
see NMS8250/55/80

Thank you very much, there seems to be a lot of interesting stuff on that page.
It's a pity that:
a) I can't read French, lol!
b) it really looks complicated, I should look for someone who's good at soldering and rewiring.

But, once again, thank you! =)