Gigabyte answered me, saying: "About the issue you mentioned, due to the hardware designed, GA-K8NS does not alter the fan speed." On the other hand, here's what I've seen on USENET: http://groups-beta.google.com/group/alt.comp.periphs.mainboard.gigabyte/browse_thread/thread/a1a8597da073a757/6c34313e7f96fb3a?q=k8ns+speedfan&rnum=1#6c34313e7f96fb3a (they might be refering to the K8NS-Ultra model :( I did not research the hardware further yet.
