What can you install yourself
On Apple servers, in fact, a page appears with detailed explanations and videos on how to intervene alone at home on your Cube to install additional RAM, an Airport card, replace the Hard Disk and the buffer battery. These are the only technical operations that, if carried out by the end user, do not invalidate the Apple warranty, although they do not naturally cover the replaced parts, in all other cases tampering implies the invalidity of the guarantee. These operations are only accepted on some machines, so do not venture into similar operations on different machines unless you are certain of what you are doing and in any case at the risk of invalidating the warranty. We hope that Apple will like to extend the valuable information also to the other machines of its production.