Interesting reply ... 1) The 780W PSU has amazing power factor . 2) The PSU limits are 780W not the power consumption. 3) Its easy to throw the ball about savings and economy to others , and you ... doing nothing about it. Act smart , save from your father some EUROs from the power bill , your family will have a better life . If you do not care about the planet , do it for your family , if you do not care about your home , why should we believe , that you care for the strangers like the members of this forum ? Any more questions ??