running a pc fan outside of a case

[Jon M. Hanson]

Either of those power supplies will work. The maximum current your fan
will draw is 0.24 amps or 240 milliamps. The current numbers listed for
the power supplies you show are the maximum amount they will put out and
they are definitely not under-powered for what you are trying to do.

On Fri, Sep 05, 2008 at 10:21:10AM -0700, Alex Dean wrote:
> OK.  I have a nice big fan I need to wire up.  I have a few power bricks 
> lying around I could use, and I need some advice about which to pick.
>
> Fan : 12V. 3 speed. 0.24A/0.2A/0.13A
> http://www.antec.com/pdf/manuals/tricool_install.html
>
> Power supplies available :
> 1. 12V, 1000mA
> 2. 12V, 600mA
>
> Both of these seem a little underpowered.  Will that just make the fan spin 
> slower, or do I really need to get a 12V,0.24A power supply from somewhere? 
>  I could also go back and buy a smaller fan.
>
> alex
>
> fouldragon at aol.com wrote:
>> The most you can reliably get out of a USB port is 500mA.
>> Typical fan draw varies wildly by size and performance level.  100-200mA  
>> at 12 volts is typical for 80/92/120mm "PC case" fans, but then there are 
>> a few rated as high as 900mA at 12 volts.  Of course, the 5v versions will 
>> draw more current for an equivalent performance level.
>> -----Original Message-----
>> From: Nadim Hoque <nadimhoque at gmail.com>
>> To: 'Main PLUG discussion list' <plug-discuss at lists.plug.phoenix.az.us>
>> Sent: Wed, 20 Aug 2008 9:25 pm
>> Subject: RE: running a pc fan outside of a case
>> In terms of getting extra air or cooling your laptop more
>> efficiently, just yet a laptop cooler. Pick one up at fry???s for 20 
>> bulks. The
>> fan???s power is directly fed via the USB cable. Thermaltake has this one 
>> laptop
>> cooler that uses this weird past, but it???s supposed to cool down the 
>> laptop
>> passively. I don???t know the power usage of the USB ones, but do keep in 
>> mind
>> that you might be powering 2 fans at once. This way is far safer and 
>> cheaper
>> and don???t forget easier to just use a laptop cooler. Again Fry???s has 
>> them; just
>> ask a employee and they should guide you.
>> From: plug-discuss-bounces at lists.plug.phoenix.az.us
>> [mailto:plug-discuss-bounces at lists.plug.phoenix.az.us] On Behalf=2
>> 0Of Eric
>> Cope
>> Sent: Wednesday, August 20, 2008 3:14 PM
>> To: Main PLUG discussion list
>> Subject: Re: running a pc fan outside of a case
>>  exactly. Get a 5V DC supply and
>> solder it to the power lead on the fan. At 5 volts the fan will be slower 
>> and
>> quieter. If you need more air movement, get a 12V DC supply. The fan will 
>> move
>> faster, but be louder.
>> Depending on your notebook, you may have some fun experimenting with heat
>> pipes...
>> Eric
>> On Wed, Aug 20, 2008 at 3:00 PM, Alex Dean <alex at crackpot.org> wrote:
>> Eric Cope wrote:
>> Outside of that, some solder, a wall wart, and a 4-5" PC
>> fan would make a great air mover...
>> But given you lack of hardware knowledge, go with the above 
>> recommendations.
>>  well, i do know how to solder.  just haven't done
>> anything inside a pc case since i was in highschool, and have never 
>> attempted
>> to do anything with a power supply.  but wiring a fan to a power brick i
>> could do...
>> a wall wart is one of those bricks that take up all the space on the power
>> strip, right?
>
>



> ---------------------------------------------------
> PLUG-discuss mailing list - PLUG-discuss at lists.plug.phoenix.az.us
> To subscribe, unsubscribe, or to change your mail settings:
> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss