I've built a new PC with an OCTO. I used to have the Aquaero 6 LT in my old system with a setpoint controller which worked well.
The OCTO with aquasuite 5.7 just wont work with a target temperature. The fans wont speed up until the target temperature is reached which, of course, leads to an overshoot.
Then there is a sine wave of fan speeds and delta-T. It never settles down.
Changing the preset response speeds or manually adjusting PID has absolutely no effect. The oscillations remain the same.