CPU at 80 degrees with 5 fans

Solution
In addition to richiestang_78 comment, you should check your cooler pressure, you don't have to press the screws hard, just until you have to do force to keep adding pressure. The quality, quantity and application of the thermal paste matters, and you can customize the fans speed curve or even undervolt it.
In addition to richiestang_78 comment, you should check your cooler pressure, you don't have to press the screws hard, just until you have to do force to keep adding pressure. The quality, quantity and application of the thermal paste matters, and you can customize the fans speed curve or even undervolt it.
 
Solution