Ambient noise in the room is around 20-25dBa. We measure from a distance of around 1,5 meters from the closed chassis and 4 foot from the ground to mirror a real world situation.
We use a calibrated meter.
KitGuru noise guide
10dBA – Normal Breathing/Rustling Leaves
20-25dBA – Whisper
30dBA – High Quality Computer fan
40dBA – A Bubbling Brook, or a Refrigerator
50dBA – Normal Conversation
60dBA – Laughter
70dBA – Vacuum Cleaner or Hairdryer
80dBA – City Traffic or a Garbage Disposal
90dBA – Motorcycle or Lawnmower
100dBA – MP3 player at maximum output
110dBA – Orchestra
120dBA – Front row rock concert/Jet Engine
130dBA – Threshold of Pain
140dBA – Military Jet takeoff/Gunshot (close range)
160dBA – Instant Perforation of eardrum
The system is quiet when idle, although the slight hint of a fan spinning is always evident. When gaming, the noise levels rise to 36.5dBa which is clearly audible.