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 Re: Help with ventilation for electronics
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Joined: May 2006
Posts: 18
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Joined: May 2006
Posts: 18 |
Quote:
If you have a 3 pin or 4 pin connector on a fan you just snip it off.
Trust me, all you need to do is make about 3 foot extensions to the BLACK and RED wires of each of the wires and connect them in one spot. Shouldn't be too hard. Heck, I could do it for you and mail it to you if you really wanted. USB stuff might work if you wanted to do that as well, more expensive, however.
How many fans could I connect to the 12V/1000mA AC-to-DC Power Adapter ? I have to admit that would be nice with just one plug.
Make it idiot proof and someone will make a better idiot.
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Re: Help with ventilation for electronics
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Joined: Dec 2005
Posts: 1,467
connoisseur
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connoisseur
Joined: Dec 2005
Posts: 1,467 |
 M22s|VP100|QS4s|HSU STF2
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Re: Help with ventilation for electronics
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Joined: Jun 2005
Posts: 1,189
connoisseur
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Joined: Jun 2005
Posts: 1,189 |
A 1000mA supply should be able to run 3 or 4 of those fans you mentioned before (the 80 and 120mm). Those use 250mA or almost 300mA. You just divide the current the fan uses into the supply total.
There are other fans that will do better, the 2 that Dan mentioned earlier are much lower in power consumption. Although they note 2.52 Watts to start up, which is about 210mA. So I still wouldn't try more than 5. You don't want the supply to get too hot.
It's all a trade off between this and the air flow (CFM), and of course noise.
Last edited by dllewel; 09/07/06 10:09 PM.
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Re: Help with ventilation for electronics
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Joined: Dec 2005
Posts: 1,467
connoisseur
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connoisseur
Joined: Dec 2005
Posts: 1,467 |
Yea, I made a typo. Fans draw .05A not .05mA. Hehe.
M22s|VP100|QS4s|HSU STF2
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Re: Help with ventilation for electronics
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Joined: Aug 2006
Posts: 7
regular
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regular
Joined: Aug 2006
Posts: 7 |
Here's another source for fans: http://www.nexfan.com/casefans.htmlI used an old laptop power supply; we have tons of them here at work. Just spliced into the DC side. With most of these fans, you can also supply them with lower voltage, just make sure your power supply has enough current. They will turn slower, but still move air. I'll plug it into my Onkyo's (A/V receiver) switched AC outlet & be done with it. Onkyos tend to run hot and I don't have much headroom above the receiver.
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