Low db 40mm 12v .18a fan

sonicbuddha

Junior Member
Mar 14, 2007
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The subject pretty much says it. I'm looking for a low db 40mm 12v .18a fan to replace some switch fans that, well, sound like a jet plane taking off. I've done some shopping and most of the fans, if listed, run at .07a, which just won't work at .18a. Currently the switch is so loud that its louder than all the other machines in my rack. Any help?
 

Zepper

Elite Member
May 1, 2001
18,998
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Amperage is a function of the resistance of the fan, not the power source. As long as the fan is rated within the Amp rating of the power source, it will work. IOW a 0.07 A fan won't draw more at 12V than 0.07 A period. www.buyextras.com (don't forget to look under "Video Card" fans too) and www.jab-tech.com have the best selections I've seen of small fans, but check SVC.com or newegg (usually don't go there for just fans 'cause of the ridic shipping cost. Also thermalfx.com or sidewindercomputers.com - those are my main fan sources. I never looked at petrastechshop.com for mini fans, but he may have something.

.bh.
 

sonicbuddha

Junior Member
Mar 14, 2007
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Well, I have a .07a fan and, when plugged into the three pin connector of the .18a fan, it does nothing. On a lark I plugged in a .10a fan and it roasted. I assume that the connector has a specific range of amperage that is limiting my selection of available fans. This is my reasoning for trying to find a fan that has the same power ratings as the fan I'm replacing.

The tough part is that the fan itself has a sticker that rates it as .18a but the specs on the manufacturer's website rate it as .12a. (32.5 dB!)

Fan: Delta Corp EFB0412VHD
 

sonicbuddha

Junior Member
Mar 14, 2007
20
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Woodbutcher- I like Scythe, too. Thinking that the amperage didn't matter, I bought some of those EXACT same fans, but, like I listed above, they are stationary when plugged into the onboard power. If I blow into them, they spin, but I don't think thats the point.... ;)