Changes
=== Option B: PCB ===
* solder the ICs and the capacitors to upper side the PCB
== References and links ==
* [[C't 512 KB internal RAM expansion|C't 512 KB internal RAM expansion]]
* [https://www.youtube.com/watch?v=b06CmqzrVE4 Repair video on Youtube that shows how to remove RAM ICs and add sockets]