Does it also have features like removing/changing CPU cores _while it is working_? Same for memory? Don't get me wrong, I'm all for cheap still useful hardware

Does it also have features like removing/changing CPU cores _while it is working_? Same for memory? Don't get me wrong, I'm all for cheap still useful hardware. But I've also worked on a Superdome. Believe me, it's crushingly superior to your chosen opteron box; mostly in terms of HA though. So, if you need HA, this price is unbelievably low.