Re: running a pc fan outside of a case

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Author: eculbert
Date:  
To: Main PLUG discussion list
Subject: Re: running a pc fan outside of a case
This is the one my wife likes, but then her middle of the laptop is over an open space under the laptop.

http://shop2.frys.com/product/5442979?site=sr:SEARCH:MAIN_RSLT_PG

I took a picture of the above under my wife's laptop, it is pulled to the rear so it somewhat shows between the back of the laptop and the frame of plywood it sits on. Does a good job of lowering the temperature of the laptop.

This model has a knob that varies the speed. She has it 'just' audible so as not to bother her.

http://www.geocities.com/eculbert/aaaa0004.jpg

Ed/ke7feg ....Hurry up November...enough heat so far!!

Did I mention, 2/23/07 the FCC dropped all cw (AKA Morse code) testing for any class of license as a ham? Just pass the written exams.


--- On Fri, 9/5/08, Charles Jones <> wrote:

> From: Charles Jones <>
> Subject: Re: running a pc fan outside of a case
> To: "Main PLUG discussion list" <>
> Date: Friday, September 5, 2008, 12:26 PM
> http://3btech.net/clgcpusbpodu.html
>
> eculbert wrote:
> > Wife has a laptop that needed a fan, got a thermalake
> one that sits under the vent hole in the bottom of the
> laptop. I made a tilted plywood base years ago for it. Works
> fine. Was $14 at Fry's.
> >
> > Ed/ke7feg ....Hurry up November...enough heat so
> far!!
> >
> > Did I mention, 2/23/07 the FCC dropped all cw (AKA
> Morse code) testing for any class of license as a ham? Just
> pass the written exams.
> >
> >
> > --- On Fri, 9/5/08, Alex Dean
> <> wrote:
> >
> >
> >> From: Alex Dean <>
> >> Subject: Re: running a pc fan outside of a case
> >> To: "Main PLUG discussion list"
> <>
> >> Date: Friday, September 5, 2008, 10:21 AM
> >> 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
> >>
> >> 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 <>
> >>> To: 'Main PLUG discussion list'
> >>>
> >> <>
> >>
> >>> 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:
>
> >>>
> [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
> >>>
> >> <> 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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> >>
> >
> >
> >
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