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Author Topic: DNS-321 Fan is Loud  (Read 15234 times)

sparky7656

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DNS-321 Fan is Loud
« on: September 02, 2009, 12:06:35 AM »
I'm looking for help as to what to do about a fan that is too noisy. I don't see a way to crank down the fan speed in the firmware - can that be done?

Also, I was trying to find something that says what size the fan is and how hard/easy it is to replace it with something quiter. Has anyone done that sort of thing?

Any other ideas?  This isn't super loud but it is in our bedroom and is loud enough that I turn it off, which kind of defeats the purpose of having it.  Thanks
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gunrunnerjohn

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Re: DNS-321 Fan is Loud
« Reply #1 on: September 02, 2009, 05:22:40 AM »
My solution was to move the DNS-321 into my basement.  It accomplishes two goals, solves the fan noise issue and physically separates the backups from other computers in case of something like a fire.  The corner of the basement is the most likely place it could survive, given that it's inside a cinder block enclosure. :)
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

spoon404

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Re: DNS-321 Fan is Loud
« Reply #2 on: September 02, 2009, 07:01:29 AM »
and i thought i was a techno-geek!  having a nas in the bedroom tops that!
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gunrunnerjohn

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Re: DNS-321 Fan is Loud
« Reply #3 on: September 02, 2009, 07:05:36 AM »
Quote from: spoon404 on September 02, 2009, 07:01:29 AM
and i thought i was a techno-geek!  having a nas in the bedroom tops that!
Sure, but there's that loud fan. :D  Besides, I have a nice 24x12 office where the computers live, and a couple of laptops scattered around the house.  I don't need computers in the bedroom, I reserve that room for other activities. ;)

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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

sparky7656

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Re: DNS-321 Fan is Loud
« Reply #4 on: September 02, 2009, 10:59:23 AM »
OK, but let's assume the NAS needs to stay in the bedroom and I need to find some way to reduce the noise from the fan.
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gunrunnerjohn

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Re: DNS-321 Fan is Loud
« Reply #5 on: September 02, 2009, 12:38:42 PM »
I'd probably open it up and stick a resistor in series with it to reduce the speed (and noise).

One issue with the fan, and the DNS-321 & DNS-323 in general is they have a fan, but no intake vents to allow the fan to do much.  I finally took the bull by the horns and hogged out a vent in the bottom of the front panel to keep the cosmetics intact, that dropped the internal temperatures by 5-6C under full load.  I'm astonished that the design doesn't allow for any decent cooling.  ::)
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

sparky7656

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Re: DNS-321 Fan is Loud
« Reply #6 on: September 02, 2009, 01:36:47 PM »
I have a 323 that is nowhere near as loud as the 321, which I just got.  I was hoping there was either a software/firmware solution or that someone had found a much quieter replacement fan.

Putting in a resistor is probably beyond my capabilities - have never done anything like that.
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gunrunnerjohn

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Re: DNS-321 Fan is Loud
« Reply #7 on: September 02, 2009, 01:43:25 PM »
It's pretty simple, but you would have to have the skills to use a soldering iron.  I don't know of a quieter fan, though my DNS-323 is quieter, even running at full speed.  The fan control on the DNS-323 also appears to do a better job of regulating the fan speed based on the box temperature, I don't see any settings for fan speed in the DNS-321 GUI, so I think it runs full bore all the time.
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

TheWitness

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Re: DNS-321 Fan is Loud
« Reply #8 on: September 16, 2009, 08:31:58 PM »
I hacked my unit and found that the binary UpdateDB was running constantly at 92% CPU.  I've renamed the bin, and not the fan is happily slow again.

TheWitness
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peas

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Re: DNS-321 Fan is Loud
« Reply #9 on: September 16, 2009, 09:38:03 PM »
Thx TheWitness.  Does anyone know what function(s) UpdateDB does?
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TheWitness

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Re: DNS-321 Fan is Loud
« Reply #10 on: September 20, 2009, 07:32:49 AM »
If it's like most other Linux's, it a file indexer.  Sort of like Windows Search.  Once the filesystem is indexed, you can run the locate command to find file.  If it is that process, there is no reason it should take that much CPU for that duration.  The index file is likely corrupt.

TheWitness
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Ryder

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Re: DNS-321 Fan is Loud
« Reply #11 on: October 16, 2009, 07:54:56 PM »
Here's this stupid loud fan issue again! I really think we need a sticky post at the top, and it should include ALL the ways that people have found, or even just tried to make it quieter, along with their success or failure. Then folks could try all of them and if they have no luck, post back for more help. That would save people from having to do a search in the forum for all the posts about a loud fan. It would be a nice, easy package to access right at the top of the forum. Just a thought.

Ryder
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Must be time for bed,
The sun is coming up

gunrunnerjohn

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Re: DNS-321 Fan is Loud
« Reply #12 on: October 17, 2009, 07:08:58 AM »
Or maybe D-Link could simply fix the fan and solve the problem for all concerned?  ;)
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

Ryder

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Re: DNS-321 Fan is Loud
« Reply #13 on: October 18, 2009, 02:06:34 AM »
Quote from: gunrunnerjohn on October 17, 2009, 07:08:58 AM
Or maybe D-Link could simply fix the fan and solve the problem for all concerned?  ;)

ROFL!!!  ;)  ;)
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Must be time for bed,
The sun is coming up

JoeSchmuck

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Re: DNS-321 Fan is Loud
« Reply #14 on: October 18, 2009, 06:42:30 AM »
Quote from: TheWitness on September 16, 2009, 08:31:58 PM
I hacked my unit and found that the binary UpdateDB was running constantly at 92% CPU.  I've renamed the bin, and not the fan is happily slow again.

TheWitness

How did you hack into your unit to find out this information?

-Joe
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