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[albert]

There is nothing much one can do regarding the fan noise, but if the fan is running non-stop even when there is no disk activity then something is wrong with the NAS.

TS, what are the applications/services that you have enabled?

[Torro14]

I have nothing of the applications enabled, I just use the NAS as network-drive on 2 Windows7 PCs.

[sancocho]

Does the fan shut off if the NAS is unplugged from the network? The fan on my DNS-320 never shuts off either, unless I unplug it from the router. I have no services running on it, like Media Server or FTP, so I'm stumped.

[sancocho]

does anyone know if the new firmware 2.03 fixes this stupid issue with the fan?

[JavaLawyer]

does anyone know if the new firmware 2.03 fixes this stupid issue with the fan?

The change log for this latest firmware version does not mention any changes to the fan control.

[telemaxx]

Not driven crazy anymore...
http://www.flickr.com/photos/83939336@N07/sets/72157631637635650/

The new Fan is this one:
http://www.amazon.de/gp/product/B003KWOG5A/ref=oh_details_o04_s01_i00
together with:
http://www.amazon.de/gp/product/B000TFVJHO/ref=oh_details_o04_s00_i00

independent with which speed the Fan is running (low or high) you wont hear something.

[ivan]

Looking at the fact you are running your NAS in, what is effectively, a box, I wonder if the noise you were hearing was caused by the small fan running at the resonant frequency of that box.

I have two DNS-320s, a DNS-323 and a DNS-345 sitting about 2.5m from me and I hear the noise of the disks starting up but not the fans.  Yes, I know there can be bad fans that are almost out of tolerance that will produce noise but none of our D-Link NAS create enough noise for anyone to notice, in fact there have been some people that have had to check that they were in fact powered up.   

[Oops]

I bought this on Nov. 2011. I gave up completely just two month after and I don't use this anymore.

The fan was never stop. NEVER. I used just one HDD in it and my home was not warm.

Something is wrong veryvery wrong.

Maybe the temp. sensor or fan control code is failed? I don't know.

Anyway I strongly recommend you DO NOT BUY THIS.

[tiago.trindade]

I did the same.

Bought a Bequiet fan (that works from 4v) from Amazon (http://www.amazon.co.uk/gp/product/B003 … 04_s01_i00), opened a whole in the back (of the black plastic box of the DNS-320) and put the fan there.

It works in Auto-Mode (Stop/Low/High) like a charm. In High mode I cannot hear it and I am getting 34 C° on the HDD and 42 C° on the chipset.

And NO noise finally!!  I can't believe I took about one year to decide to do this..

[Oops]

http://forum.dsmg600.info/viewtopic.php?id=6574&p=2

I found s_vad's new post in that thread.

You can switch the fun power supply from 5V to 12V by resoldering the inductor from position L1 to L2 as shown on the pic. But I don't know exactly how much power will it supply in this mode.

I just tried it.
ADDA 80x80x10mm Coolertec 70x70x10mm 12v 0.05A fan works!

[ivan]

Thank for the information Oops, filed and passed on to my service department.  It should mean that in the event we have to replace a fan we can use a standard 12v one rather than a very hard to find 5v unit.

[Samson]

2 Methods I've used.

Method 1
**************
My DNS 320 with simply an Acutake ACU-FAN120
sitting on top of an open box has now been running for
over 700 days continious.  Its loaded with 2 WD Blues.

The ACU-FAN120 is silient except at start up, and runs
constantly.

Email is set to send me a notification if the box overheats
so far no overheating after about 2 years of constant running.


Method 2
*******************************************************
I've another DNS 320 with a
Arctic F9 Pro PWM fan running it on it.

This Fan changes speeds and does not run constant,
it has a full off/lo/high setting and works with all
of them.

On this machine I've taken off the plastic cover.
I placed 4 rubber feet on the bottom, so it sits
about .5 inches from the surface it sits on.

With 18-36 CFM the Artic F9 pushes 3-6 times more air than
the original.  I've also taken the original fan off
of the back so there is more airflow.  

The F9 Arctic Fan sits perfectly across the 2 WD Red drives.
I've used some rubber material with adhesive to make a footing
for the fan so it sits perfectly in place and would slide off.



Cross section sketch

---------------- Artic F9 PWM FAN
----------------
================ Thin Rubber isolating strip
*** ======== *** with additional strip/s added to keep from sliding
***          ***   
***          ***   
***          ***   
***          ***   
***          ***   
***          ***   
WDLeft      WDRight


With the plastic case off the unit runs cooler anyways,
as the sheet metal works more effectively as a heat sink.

Without cover the DNS 320 will only work safely
if one has a secure shelf or cabinet to set the unit.  

Here are some illustrations.


DNS 320 with Artic F9 PWM FAN fan sitting securely on drives.


Fan from bottom showing adhesive rubber material as cut and applied to fan.


Fan form side, showing raised layers of adhesive rubber to keep fan from slipping


Rubber feet placed on bottom of unit, these provide further isolation from sound,
as well as provide an airspace so bottom metal panel can better perform as heat sink.


Adhesive material with backing peeled off prior to applying to bottom
of fan casing.



An example of the plastic-rubber/adhesive material in sheet form,
sold for placing beneath furniture, felt is sold in same format.




The DNS 320 is a robust, well priced unit.  With a little work the fan and ventilation can be made
quieter and more efficient.