running a pc fan outside of a case

[Eric Cope]

regarding the fan, yes. Regarding the power brick, use a voltmeter...

On Fri, Sep 5, 2008 at 12:00 PM, Alex Dean <alex at crackpot.org> wrote:

> Double-check:
>
>  * on the fan, red wire is positive.
>  * on the power brick, white-striped wire is positive.
>
> Yeah?
>
> Eric Cope wrote:
>
>> They look good to me too.
>>
>> On Fri, Sep 5, 2008 at 10:34 AM, Jon M. Hanson <jon at the-hansons-az.net<mailto:
>> jon at the-hansons-az.net>> wrote:
>>
>>    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 <mailto: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
>>    <mailto:nadimhoque at gmail.com>>
>>     >> To: 'Main PLUG discussion list'
>>    <plug-discuss at lists.plug.phoenix.az.us
>>    <mailto: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>
>>     >> [mailto: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
>>    <mailto: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
>>    <mailto: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
>>    ---------------------------------------------------
>>    PLUG-discuss mailing list - PLUG-discuss at lists.plug.phoenix.az.us
>>    <mailto: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
>>
>>
>>
>> ------------------------------------------------------------------------
>>
>> ---------------------------------------------------
>> 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
>>
>
>
>
> ---------------------------------------------------
> 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
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.PLUG.phoenix.az.us/pipermail/plug-discuss/attachments/20080905/d66a95f2/attachment.htm