Purchased a Corsair Obsidian 450D.
It is not a cool looking diamond shape box. But it is cool and quiet.
It has eight fans:
Power Supply, Corsair RM 750x.
Back chassis fan
Three fans on the Asus 1080
Two front chassis fans
The three 1080 fans and the two front chassis fans only work when the GPU hits 61 degrees C. The front fans connect to the GPU.
The Power supply fan only kicks in when thermals caused by high power consumption dictate cooling. I have not detected activity from the power supply fan since I built this in February 2017.
I can gut the case when I want to go to a different MB architecture.
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