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@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@gmail.com>
>> To: 'Main PLUG discussion list' <
plug-discuss@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@lists.plug.phoenix.az.us
>> [mailto:
plug-discuss-bounces@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@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?
>
>