Aquasuit guide for best cooling vs noise ratio

Target: best possible cooling while maintaining low noise level.

Tools:
Monitor and control:
* Aquaero 5/6
* Quadro
* Octo

Inputs:
* Ambient temperature
* Radiator OUT temperature

Fans:
* PWM Fans - recommended

Tuning procedure:

Find high limit for the pump (if noisy), max speed while noise level is acceptable. (in my case 60% is fast enough and quite enough).
Find the low and high limits of your rad fans.
Low limit is when the fan will not spin any more, so just above that (in my case 20%).
High limit is like with the pump, the highest speed possible while maintaining low level noise (in my case 50%) and while able the keep DeltaT<=MaxDeltaT* (less or equal max ambient vs rad out delta)
Configure a virtual sensor that gives the difference between the ambient temp and the rad out temp - Delta T

Now you need to find the Maximum Delta T you allow for your system.
You can start by setting the fans to 100% and running a typical game load, this will give you the lowest achievable DeltaT by your system.
Now try settings the fans at the high limit you have found and run a typical game load, this will let you know if the fans high limit is enough for stable operation.

You should aim for the lowest possible DeltaT.
Desired lowest Max Delta T will give:
Acceptable noise level - rad fans speed lower then the high limit.
Stable system - at max OC.

My system:
CPU: 10600KF @ 5.3GHz
3070 on air, waiting for the water block, it will be interesting to see how it will impact the tune, used to run 7700K @ 5ghz + 2070S on the same water loop - same tune.
EK-QuantumX Delta TEC
420mm Radiator
6x140mm Fans

Pump @ 60%
Fans low limit 20%
Fans high limit 50%
Ambient 22C

Idle:
DeltaT 3-4C
Fans @ ~20%

Games Load:
DeltaT ~8C
Fans @30-40%


Noise level: Super quite - almost no noise at all, 60cm~ away from the rad fans.

If you can NOT tune your system to be OC stable in games while maintaining low noise level, your radiator/s is/are not enough.

Let me know if it helps or more details are needed,

Cheers !
Elior


Why Ambient vs Rad out ?
The lowest possible water temp that can be reached is ambient temp, monitoring and controlling the cooling system through this parameter is the most effective way.
The components temp is derived from the coolant temperature.
Controlling using CPU or GPU temp is too erratic and will cause the fans to oscillate.

In total this is the absolute best parameter to rely on.

I tried what you suggest for a while, the problems are :

1. Fans speed is not limited - can cause noise
2. PID behavior is not as smooth as the curve I use.
3. PID does not start raising the fans speed until the set temp is reached - fans will start too high and too late.
4. Target coolant is not absolute, it is relative to ambient temp.

There for you should use my tune in order to get the best cooling vs lowest noise.

You must use DelteT, Max DeltaT, pump and fans low and high limits.

It is not that complicated.