I am a new user of an Asrock X58 Extreme board. Before posting I browsed through the forum but I haven't had time to do an extensive search about my issue. I am trying to install 3 memory dimms ( all tested as functional and listed in the memory QVL) to run in triple channel mode, as the manual states is possible with identical dimms which I. of course, am using. The bios menu lists the memory mode as dual channel, and this setting is "greyed out" and I cannot access or change it. The manual (both physical and downloaded from Asrock's site) offers no help. Can someone tell me how to access and change this bios menu setting? (I'm making the assumption that I can perform this very basic function without having to do a bios update at this time)