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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.
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. Ambient noise in the room measures close to the limits of our sound meter at 28dBa.
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 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 Palit GTX750 Ti KalmX has no fan, and doesn't register any level of noise on our equipment. Ideal for those people with very sensitive ears building a new rig for a living room or bedroom environment.
Not entirely sure why they bothered doing an acoustics test on a passive heatsink. Seems like a waste of time.
I think for people looking for fanless card, there is intrest how this can perform in completly passive system.
How this card will work out in case with little airflow, no or few fans with low rpm? If i already have lot of fans in my rig, probably fanless gpu wont be that much intrest to me.
Liquid cooling on cpu and total of 5 fans in system provide plenty of airflow, and show this card in perfect light but dosent quite provide insight if [maybe with reducing power consumption ], this card can work in fully|semi passive system.
I think for people looking for fanless card, there is intrest how this can perform in completly passive system.
How this card will work out in case with little airflow, no or few fans with low rpm? If i already have lot of fans in my rig, probably fanless gpu wont be that much intrest to me.
Liquid cooling on cpu and total of 5 fans in system provide plenty of airflow, and show this card in perfect light but dosent quite provide insight if [maybe with reducing power consumption ], this card can work in fully|semi passive system.