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Old 05-31-2013, 11:19 PM   #1
RusRus
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Very Faint Hum Coming From My THD DVR

THD DVR and a new WD AV-GP 1 TB AV Hard Drive: 3.5 Inch, SATA III, 64 MB Cache - WD10EURX .
When it is quiet I can hear a very faint hum coming from my DVR. Is this normal? Could it be the HDD or, perhaps, the cooling fan on the power supply?

Last edited by RusRus : 06-01-2013 at 12:08 AM.
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Old 06-01-2013, 12:40 AM   #2
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Quote:
Originally Posted by RusRus View Post
THD DVR and a new WD AV-GP 1 TB AV Hard Drive: 3.5 Inch, SATA III, 64 MB Cache - WD10EURX .
When it is quiet I can hear a very faint hum coming from my DVR. Is this normal? Could it be the HDD or, perhaps, the cooling fan on the power supply?
Find a skinny plastic soda straw or plastic paintbrush handle and stick in one of the little holes over the fan in the back just long enought to stop it turning for a moment and see if the sound disappears.

If it does, then it was the fan.

If it doesn't, it's probably the hard drive, unless it's magnetostriction going on in the power supply.
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Old 06-01-2013, 01:01 AM   #3
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Find a skinny plastic soda straw or plastic paintbrush handle and stick in one of the little holes over the fan in the back just long enought to stop it turning for a moment and see if the sound disappears.

If it does, then it was the fan.

If it doesn't, it's probably the hard drive, unless it's magnetostriction going on in the power supply.
Can I use a round toothpick to stop the fan?
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Old 06-02-2013, 02:52 AM   #4
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Can I use a round toothpick to stop the fan?
If you're quick enough to get a fatter part of it near the middle in to stop the blades so that it doesn't just break off the skinny tip.

Just do not use anything metal or conductive, since the unshielded power supply is close by, and you don't want a little piece of metal breaking off and getting thrown into it.

If you get a dollar store paintbrush with a small enough diameter handle you have the added benefit of being able to use the other end to brush dust out of little places on various things, like between keyboard keys.
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Old 06-02-2013, 01:20 PM   #5
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I have found that if my TiVo or computer isn't sitting flat on its' feet it will vibrate, but if I readjust it the vibration will cease.

Last edited by replaytv : 06-03-2013 at 07:39 AM.
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