I feel really stupid right now but i cannot figure it out. 
I have just installed 2 new fans connected straight to motherboard however they are constantly at full speed and cannot find away to control them. I've checked the bios and cannot seem to see anything and also tried a software program with no joy.
Can anyone assist please

I have just installed 2 new fans connected straight to motherboard however they are constantly at full speed and cannot find away to control them. I've checked the bios and cannot seem to see anything and also tried a software program with no joy.
Can anyone assist please