I have a different board to you but if your BIOS is like mine there should be a section in it called "PC Health Status" or something similar.
Setting "fan speed control method" to disabled should do it.
I just built my first PC in over 4 years. I did all the prebuild reading for choosing gear (that took two weeks) but haven't done a lot of reading on the software you guys are using to track temps and change setting.
I'll start my Oc reading next week. Until then, I'm running speed fan but haven't figured stuff out yet. All I know is that it's reading my core temp at 50C while surfing the net. That does not seem good.
CPU: Intel E2160 (stock fan+sink, no OC)
I haven't done anything else really. I just put this together last night.