running a pc fan outside of a case

[Eric Cope]

They look good to me too.

On Fri, Sep 5, 2008 at 10:34 AM, Jon M. Hanson <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 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?
> >
> >
>
>
>
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