After driving myself nuts with loud fan noises (and being too cheap to buy an after-market cooler) – I found a solution.
I first tried Gigabytes Easy Tune 6. It worked OK but has some drawbacks (only CPU fan, a 2 point fan control curve and 1 fixed sensor).
So I went back to SpeedFan:
http://www.almico.com/speedfan.phpI had used this on my old MSI motherboard but could never get it to work with SpeedFan. There also is no profile on the SpeedFan site for the GA-890GPA (and a lot of other Gigabyte MBs).
SpeedFan allows you to setup a fan strategy for multiple fans and multiple temperature sensors. For a complete discussion see:
http://www.almico.com/sfarticle.php?id=5I could never get SpeedFan to work for my GA-890GA before – so decided to revisit the issue.
What worked for me is that I had to configure the IT8720F Super I/O chip (senses and controls things – like temperatures, speeds, etc.)
To do that in SpeedFan select Configure, then the Advanced Tab. Then select the IT8720F chip. High-lite and change the PWM 1 and 2 modes to “Software controlled”.
I now have my CPU fan controlled by the CPU temperature chip (rather than the Gigabyte sensor) – on my selected, multi-point, control curve.
I have also set up my exhaust fan to be controlled by two sensors (what I THINK are the system and North-bridge sensors).
Note that on the GA-890GA only SYS_FAN1 can be controlled. Perhaps other Mbs have other fans that can be controlled.
Now to figure out how to get SpeedFan to kick-in automatically when I re-boot (UAC issue here).