DFI LanParty NF4 SLI-DR Expert Review 9

DFI LanParty NF4 SLI-DR Expert Review

Overclocking »

Fan Noise

In order to give a measurement of how loud this board is, we used an IEC651 Type II sound level meter on the dbA slow setting.

The distance between fan and sound level meter was 10cm. Please note that this is very little, compared to the "standard" measurements, which are made at 1m distance. We had to do this, to get proper readings with our sound level meter, because we obviously can't spend thousands of dollars on audio measuring equipment.
All tested fans were connected to an external 12V lab PSU. 12V is the maximum rated fan speed. Some motherboards/video cards use slower fan speeds and slowly ramp them up with temperatures. This is also the reason, why the X800 series seems to have such a "loud" fan. During normal usage its fan is usually running at 33% to 66%.

DFI is using the same fan as on the previous LanParty boards, so there is no difference here.



Common sound levels
Ambulance siren120 dbA
Crying baby 110 dbA
Shout (5 feet) 100 dbA
Truck90 dbA
Urban street80 dbA
Automobile interior 70 dbA
Normal conversation (3 feet) 60 dbA
Office, classroom 50 dbA
Living room 40 dbA
Bedroom at night 30 dbA
Whispering at (5 feet)20 dbA
Rustling leaves 10 dbA
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Nov 27th, 2024 02:16 EST change timezone

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