Fan keeps breaking on mod WRT54GL

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Troyer
DD-WRT Novice


Joined: 08 Oct 2015
Posts: 2

PostPosted: Thu Oct 08, 2015 21:21    Post subject: Fan keeps breaking on mod WRT54GL Reply with quote
I have added a 12V fan to my WRT54GL router running Firmware: DD-WRT v24-sp2 (04/23/10) vpn.

Actually, I have added several fans.. only one at a time, but they keeps breaking after a couple of months after installation. I have tried both with and without a switch, but with the same result.

This is the guide I have been using.
http://www.skifactz.com/wifi/?p=89

Any thoughts on why this is happening?
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redhawk0
DD-WRT Guru


Joined: 04 Jan 2007
Posts: 11451
Location: Wherever the wind blows- North America

PostPosted: Thu Oct 08, 2015 21:47    Post subject: Re: Fan keeps breaking on mod WRT54GL Reply with quote
Troyer wrote:
I have added a 12V fan to my WRT54GL router running Firmware: DD-WRT v24-sp2 (04/23/10) vpn.

Actually, I have added several fans.. only one at a time, but they keeps breaking after a couple of months after installation. I have tried both with and without a switch, but with the same result.

This is the guide I have been using.
http://www.skifactz.com/wifi/?p=89

Any thoughts on why this is happening?


Change to a different type of fan...use a ball bearing fan and for sure not a bearing-less sleeve fan (they suck)...or...better yet...use a Hydro Dynamic bearing fan....a little more expensive...but they are worth it in terms of longevity.

redhawk

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Troyer
DD-WRT Novice


Joined: 08 Oct 2015
Posts: 2

PostPosted: Fri Oct 09, 2015 15:05    Post subject: Re: Fan keeps breaking on mod WRT54GL Reply with quote
redhawk0 wrote:
Troyer wrote:
I have added a 12V fan to my WRT54GL router running Firmware: DD-WRT v24-sp2 (04/23/10) vpn.

Actually, I have added several fans.. only one at a time, but they keeps breaking after a couple of months after installation. I have tried both with and without a switch, but with the same result.

This is the guide I have been using.
http://www.skifactz.com/wifi/?p=89

Any thoughts on why this is happening?


Change to a different type of fan...use a ball bearing fan and for sure not a bearing-less sleeve fan (they suck)...or...better yet...use a Hydro Dynamic bearing fan....a little more expensive...but they are worth it in terms of longevity.

redhawk


Thank you for the tip! That was new information for me..

I already have a 80mm*80mm*10mm fan like this
http://www.ebay.com/itm/1pcs-DC-Brushless-12V-2Pin-80x80x10mm-80mm-8cm-Desktop-Computer-Case-Cooling-Fan-/221739372870?hash=item33a0b25146

and would like a Hydro Dynamic bearing fan with similar measures as you suggested.

The only problem, I cannot find one..

The measures have to be exactly like this, because I am putting the fan inside the router case.
Any tips on this?
Ferrocenium
DD-WRT Novice


Joined: 14 Mar 2015
Posts: 4

PostPosted: Sun Oct 11, 2015 13:26    Post subject: Re: Fan keeps breaking on mod WRT54GL Reply with quote
Troyer wrote:
I have added a 12V fan to my WRT54GL router running Firmware: DD-WRT v24-sp2 (04/23/10) vpn.

Actually, I have added several fans.. only one at a time, but they keeps breaking after a couple of months after installation. I have tried both with and without a switch, but with the same result.

This is the guide I have been using.
http://www.skifactz.com/wifi/?p=89

Any thoughts on why this is happening?


Do you have the most recent fan that broke? It would be helpful to see a picture of what the guts look like.
mwbuss8
DD-WRT Guru


Joined: 23 Feb 2015
Posts: 654

PostPosted: Mon Oct 12, 2015 9:17    Post subject: Reply with quote
I'm a big fan of Arctic F8 fans. The 80mm is <$10 on amazon. I think the f8 pro, which is only mountable in a push configuration is $6. The 120mm I put on my computer keeps it cooler and the only noise is the air moving, and only if I put my ear up to it. I leave the computer on 24/7 and it has been flawless. Be sure you're getting the fluid dynamic bearing version though.
redhawk0
DD-WRT Guru


Joined: 04 Jan 2007
Posts: 11451
Location: Wherever the wind blows- North America

PostPosted: Sun Oct 18, 2015 13:07    Post subject: Reply with quote
The really thin Fluid Bearing fans may not be available in the 80mm on up size....I use a 50 x 50 x 15 in my RT-N16 units...they pull enough air to keep things cool. You just need to keep the air moving...these little routers don't generate enough heat to require large heat sinks and high cfm fans. I've had very good luck with the 50 x 50 fans for internal applications...but I admit...I do use 80 x 80's on external mounted fans. I generally don't cut any holes for the larger fans....I just pull air through the perforated tops.

If you already have a hole cut...build an adapter plate for the smaller 50 x 50 x 15 fan. The Hydro (Fluid) Dynamic fans run about $10 but they have a longevity that makes up for the cost.

Another thing that may help...I use a variable speed circuit to control the fan also...I keep the fans running slow and quiet (even older ball bearing fans)

http://www.dd-wrt.com/phpBB2/viewtopic.php?p=449551#449551
(I've since changed from Ball Bearing to Hydro since taking these pictures)

redhawk

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