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Guest Message by DevFuse

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Cooling external hard drive with USB powered fan

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2 replies to this topic

#1 OFFLINE   marechal_davout


    Cool Member

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Joined: Mar 01, 2010

Posted 15 March 2010 - 07:14 PM

Please don't hate me for posting a new thread. There was an old thread about cooling the HR20 but it was locked.

I think this will work but I am the worlds biggest chicken when it comes to trying stuff on my own.

I am purchasing a fanless external hard drive to use with direcTV. The only con in the reviews was that it ran hot. I would like to buy a USB powered 2 fan laptop cooling unit. Can I power this with the USB port on the HR20? How should I place the fans relative to the HD for the best effect? Is there a better solution than this? I do not want to buy a fan cooled HD case and exchange the guts.

Hopefully this post will fade to page 2 in a day or so.

I appreciate your help. Thank you.

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#2 OFFLINE   Davenlr


    Geek til I die

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Joined: Sep 16, 2006

Posted 15 March 2010 - 07:57 PM

I have an external 750GB Barracuda drive in a non-cooled enclosure (Vantec), and another 1TB WD in a Fantom enclosure. While both get warm to quite warm, I have been running both on a shelf next to the DVR for over a year with no issues.

Since you have an HR20, I would just sit the drive on top of it (if possible) and set the entire unit on the laptop cooler. The HR20 gets hotter than the external drive :). That would cool both of them.

Check the Deca thread though, I think there is one unit that does not provide power to the USB port, but I cant remember which one it is.

#3 OFFLINE   Volman



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Joined: Jul 13, 2007

Posted 18 March 2010 - 03:37 PM

I bought a couple of these 120mm fans and use them to cool both my HR20-700(it just lays on top) and an eSata HDD(just sits nearby and blows on the HDD).These fans are superb,quiet,and a steal for the $$.They move a lot of air.This particular fan is a better case fan than is usually found in PCs.The Scythe fans are even better,but very little perfomance difference and cost a good bit more.

I used a 12V wall wart that I had laying around for power.Just wired the red and black leads on the fan to the wall wart's 2 leads and plugged it in.That way I don't stress the usb outlet on anything.Just make sure the fan blows in the right direction(or reverse the leads).


I tried laptop coolers and found them to not move much air.

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