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SG300-28P noise level... (fan control)


May be somebody can help me. In official information for SG300-28p noise level is 40.6 dB, but in fact its too noisy. Is it possible to change speed of fans? I use only 8 PoE ports.

Thanks in advance,


Everyone's tags (1)

Re: SG300-28P noise level... (fan control)

Hi Andrey,

I placed a sound meter within 6 inches of the Right hand side of my SG300-28P  and found a average dB level of 47

I rested a sound meter on top of my SG300-28P  and found a average dB level of 59-60dB  .

I used my motorola atria phone in conjunction with a Sound Meter ver 1.4.3 dB meter app to perform the measurements. 

My measurements were not done according to any standards based approach for measurements of sound level of machines.

Conversation in restaurant, office, background music, Air conditioning unit at 100 ft

60Half as loud as 70 dB. Fairly quiet

Quiet suburb, conversation at home. Large electrical transformers at 100 ft

50One-fourth as loud as 70 dB.

Library, bird calls (44 dB); lowest limit of urban ambient sound

40One-eighth as loud as 70 dB.

reference :

My unit is no more than 3 feet from my left ear,  and I do not find the sound distracting..but noise/sound is subjective.

The fans on the SG300-28P are not adjustable.

regards Dave

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