Nicolas Perreten wrote:
We've noticed that the 840 system board has room for 2 CPUs although it = only uses one. (The second slot is occupied by a "dummy" CPU).
Since the system is marketed as an appliance you are not intended to do anything under the cover. On the old intel based systems (F230) it was said that although you could upgrade the pentium75 or whatever and add more ram, doing so wouldn't help due to other bottlenecks. On the 840 I would guess that unless it has a switched memory/IO architecture then it will be PCI or memory bandwidth limited. If that is indeed the case then adding another cpu isn't going to give you anything, in fact it will may well end up in a slower, less reliable system.