Hi, I've the same problem with a coolermaster fan, it don't start because of too low powerage...
Why Intel doesn't fix it like Asus boards : all fan start at max and reduce just after ???
Just so you know, the Intel rep I contacted about this would not escalate. He said there is nothing wrong with the BIOS and it was a problem with my fans. He said it is impossible to increase the voltage through the BIOS. /sigh
He also said no one else has reported this issue.
Intel motherboard BIOS engineer told me this would be fixed over two BIOS releases ago. Still not fixed as of 4905.
ETA on the upcoming BIOS feature to fix this???