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We have built a system inside a Lian Li chassis with no case fans and have used a fanless cooler on our CPU. The motherboard is also passively cooled. This gives us a build with almost completely passive cooling and it means we can measure noise of just the graphics card inside the system when we run looped 3dMark tests.
Ambient noise in the room is around 20-25dBa. We measure from a distance of around 1 meter from the closed chassis and 4 foot from the ground to mirror a real world situation.
Why do this? Well this means we can eliminate secondary noise pollution in the test room and concentrate on only the video card. It also brings us slightly closer to industry standards, such as DIN 45635.
KitGuru noise guide
10dBA – Normal Breathing/Rustling Leaves
20-25dBA – Whisper
30dBA – High Quality Computer fan
40dBA – A Bubbling Brook, or a Refridgerator
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 Wired2Fire Diablo Predator System is very quiet under general use and it will be difficult to hear with the case positioned under a desk. When loaded, the GPU fan spins up considerably and the total noise measured was around 36DbA, which is still an excellent result.
Its nothing special really. seems to be well routed and a nice build, but its rather dull IMO.
Good selection of components throughout, shame about the case though, I hate xigmatek fans, they are always so loud. I had to replace several for a friend as they made such a racket. I would have prefered to see a corsair case and cooler rather than xigmatek. forget the monitor. hopefully they allow some adaptions of the core build with better cooling, lower noise.