This is probably the easiest way to increase airflow, reduce noise, and lower your overall operating temperatures. But first I need to clear up a couple things.
1. Most "noise" from fans is actually caused by turbulence, whether it's pulling air through, or pushing air through. Resistance on the airflow causes fluctuations in the air pattern that translate to noise.
2. Hard drives do not need fans directly on them to stay cool and comfortable, unless you have a full stack in a raid array as long as you have good airflow in your case they will stay adequately
Now with those out of the way, let's get to the quick easy way to cool and quiet down your Nanoxia build even more.
The Nanoxia Deep Silence cases offer up a variety of hard drive cage mounting options, this setup uses my favorite of them. To do this you need to be using less than 3 drives. All you need to do is remove all the HDD cages from the case and move one of them to the middle of the case. Luckily Nanoxia has already placed a convenient mount here for you. Load up your HHD's in this position and that's it.
Leaving the front drive cages out removes any internal obstacle for your front intake fans and therefore removes turbulence caused by the HDD cages. Now you'll find your case to be a fair bit more quiet. At this point you have a couple options;
1. Raise the fan speed to lower temps while staying just as, if not more, quiet than it already
2. Let your system operate at the same temperatures but now being able to lower the fan speeds resulting in an even quieter experience than before.
What are some of the ways you keep temperatures and noise levels down with your PC?