OK, I cloned that repository, but I'm running into the same problem as before. Also, I didn't mention that setting frequency with --gekko-compacf-freq <value> does not actually change the frequency. The frequency remains the default one (200). I wouldn't rather buy a fan at the moment. I would like to have it working without a fan, even if that means I should lower the frequency, I have no problem with that.
How exactly did you use this command I mean what file did you edit to put this command?
Is that through the bat file?
It might not work if you have a cgminer.conf edit that file and put that command on that file and try again.
You have a similar case here
https://github.com/wareck/cgminer-gekko/issues/21 and here
https://bitcointalk.org/index.php?topic=5329485.0 but for kano.is cgminer you need to edit the gekko.conf
If it still doesn't work, try the onboard voltage to adjust it to a lower voltage; it should look like a screw.