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[Jeff_yong1]

I found that the 320 was simply too noisy(fan)
It have the loud "hoe hoe" sound when your environment is quite.

or that's normal?

[JohnSmith]

I have one of my units sitting on the upper shelf of my computer desk, and yes the loud fan is normal when it goes into high speed mode.  It's like a mini vacuum cleaner in there when it powers up.

[cable2]

Hi Jeff,
Not sure if it will help, but first off make sure to check and resave the fan settings to auto and check the settings for drive hibernation.  The other thing I have noticed is that in my environment, if I position the unit so as to have a wall or other hard surface close, withing a foot or two, the fan seems to be louder.  Whereas if I can re-direct the exhaust in a different direction at an angle to the wall and at 4-5 feet away the noise is dramatically lower.  Worth a try if possible.  Good luck

[albert]

The cooling fan used in the DNS-320 is the same brand/model as that used in DNS-323. It's kind of noisy when running in high speed mode and there's nothing one can do to minimize except to replace it.

[RobotGuy]

Hi,

I seemed to have the same problem but it almost sounded like a high pitch vibration. Turned out the hard drive wasn't solid in its seating and it was vibrating against the plastic shell. I just custom made a piece of foam and it's been quiet ever since.

Regards,

RobotGuy

[albert]

Hi,

I seemed to have the same problem but it almost sounded like a high pitch vibration. Turned out the hard drive wasn't solid in its seating and it was vibrating against the plastic shell. I just custom made a piece of foam and it's been quiet ever since.

Regards,

RobotGuy

I assumed your doesn't come with a foam on the cover, it does help to 'secure' the drive firmly to the cage and help to minimize the overall sound a little bit.