If you are concerned with power saving its not done like that anymore. there is an advanced button in the connections wizard that lets you set the aggressiveness of the power savings. There are three levels to choose. note in max power savings mode on wifi there is a dependancy on your router supporting power saving mode, or you will get occasional stuck page loads cause the router does not know how to maintain connections to devices that drop thier connections. This was the case even in Diablo.