You can use Speedfan to control fan speed for the CPU_Fan header, but I haven't found a way to use any of the other headers on the UD7 except at 100%.
To use Speedfan you'll have to disable SmartFan in the BIOS, forcing CPU_Fan to run at 100%, and then use Speedfan to control speeds. Speedfan allows you to control a fan dynamically based on a chosen temperature; I have one fan controlled this way by CPU temp.
Once you get Speedfan setup you can run it as a task at startup.
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