New FL dedi

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Air cooling is all fine and dandy, but with the fans being reduced in size to reduce sound, you tend to find newer systems will overheat faster than the older ones. If your wanting to do air cooling, youll need decent room temperature between 70-80 and a series of fans to keep a constant air flow.

Unless I've mis-interperated you, that's wrong, larger fans at lower rpm (same cfm) make less noise than smaller fans at higher rpm.

I also don't think sound is a design concern or problem with server chassis.