Dahua NVR fan speed - noisy as hell!

3lij4h

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Hey Guys,

I am just trying my new Dahua NVR-5216-4KS2 I got from Andy,
Installed an HDD, started the the NVR - it welcomed me with a loud fan noise... then after a minute of booting it calmed down and was almost silent.
However, setting it up it started the fan again and hell this thing is loud! its like a gaming PC/old servers loud!

Is there a way to control the fan or manage it?
 

wittaj

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Many people have replaced the fan with a silent one. Several threads floating around here discussing it.
 

heliantus1

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In the menu try switch to Auto mode from manuál(always on)

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3lij4h

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Many people have replaced the fan with a silent one. Several threads floating around here discussing it.
I got that... but still when the fans worked on low speed the sound was ok!

In the menu try switch to Auto mode from manuál(always on)

Odoslané z Redmi Note 9 Pro pomocou Tapatalku
I cant really find that on the menu!
 

Mark_M

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I added rubber pumpers around the fans to reduce vibrations and replaced the power supply one to a quieter one.

Another idea is to under-volt the fan to reduce its speed. Careful not to heavily reduce air flow.
 

tigerwillow1

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From the model number I'm assuming this is the non-POE version with the external power brick. I consider mine to be very reasonable with the fan noise. Mine is pretty old, version 1.0 hardware. I wonder if something has changed with the newer versions?
 

Flintstone61

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3lij4h

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From the model number I'm assuming this is the non-POE version with the external power brick. I consider mine to be very reasonable with the fan noise. Mine is pretty old, version 1.0 hardware. I wonder if something has changed with the newer versions?
Right!

The issue is that it started very quite and after a restart it started blowing off like crazy!
I am not sure if there is a way to manually control the fan... I didn't find this option!
 

Pseudoreal

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I have the exact same behavior. Anything you found what caused it (ai setting, no proper sync with connected cameras, etc.?)?
 

Pseudoreal

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I have set the NVR to default settings and set all AI on the camera. Since then the fan speed is completely quiet
 

ipcflow

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i have same problem. there are two fans. one is silent, the powersupply fan is loud and run all time.

i think the power fan run all time same?
 
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