I hope this image helps. It shows the curve the fan tuning gave one of my PWM fans and a snip of an actual period when it was cycling which is kind of annoying. No problem with higher fan speed under temp, but for it to cycle when essentially cool seems strange. Unless the temp. was cycling that high and low, not sure why it starts cycling like that.
And even stranger when resetting my saved "template" stops it. Or if I just wait long enough it "settles down" sometimes.
Perhaps the better way is to configure directly in the bios but I have not attempted to do that yet and need to understand that better.
Thanks for any insights,
BJBBJB