For now nothing, at most I could buy 2 or 4GB ECC DDR2 if I find them very cheap to add to my current 4GB as an interim solution waiting for my next major upgrade. For the latter I'll wait for AMD to make new APUs with Zen and Polaris CPU and GPU cores and to fully support DDR4, I don't want a system particularly powerful, but it must not become obsolete too soon, old RAM prices stop dropping and instead increase when their production stops.







