Re: running a pc fan outside of a case

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?
>


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