There's only 5 case fans and 7 total if you count the rad fans for the CPU.
There is no vibration.If there were it would mean I had a crap fan(s).
The 230mm exhaust fans make no noise at all unless you put your head right next to them.
The 120mm intake fan trio I run at 75% so their noise level is greatly reduced.
Overall,the system is the most silent of any rig I've ever built.















