The Aquaero 5 is using linear voltage regulators.
The lower the fan voltage, the higher becomes the electronics temperature (=voltage regulator temperature).
To prevent damage to the Aquaero, the Fans are set to 12V to give less strain to the voltage regulators, so they can cool down.
There are two options:
- Increase the voltage for the Fans. The higher the Voltage, the lower is the electronics temperature. Running the fans at 8V is better than running them at 5V.
- Or to cool the Aquaero 5.
Place the Aquaero near a fan, so it get cooled with the air flow.
If that is not enough, you can buy a passive cooler (
https://shop.aquacomputer.de/product_inf…roducts_id=2692 )
or a water cooling block (
https://shop.aquacomputer.de/product_inf…roducts_id=2671 ).