Usually if speedfan can see a fan then it can normally alter it. Have you gone through the 'how to'? As when I open the config in speedfan unless I click on a actual fan then nothing appears below is just blank like yours...
Checkout my screenies. One piccie of before and then one after I highlight the fan (you'll notice I've changed the names to suit what they are).
Checkout my screenies. One piccie of before and then one after I highlight the fan (you'll notice I've changed the names to suit what they are).