Which is better? Nepton 280L or Nepton 240M? In many reviews, Nepton 280L cooling performance is a bit better than Nepton 240M. However Nepton 240M is amazingly quiet. (Cooling performance is my main concern.) I would like to ask, if the pump of Nepton 240M is the same one as Nepton 280L? Or which one is more powerful? I am wondering if I choose Nepton 280L, and replace it with another quiet and powerful fan, will I get the best performance with the quietest system? Thanks for any inputs.