actually true and not true, depends if I have monitors on usually I have 4 of 6 on so then I would not have a primary, being that both are being used at same time or all 6, (soon to be 8 lol) and if they are in SLI link mode, there shouldn't be a primary depending on which monitor im working on. If I had 2 graphics cards and one monitor then yes there would be a primary, but in my case that is not the case, but your more then welcome to prove me wrong, I might just learn a thing or two, who knows.