[Tfug] USB-powered fans?

[Tom Rini]

On Tue, Feb 24, 2009 at 11:48:23AM -0800, Bexley Hall wrote:
> Hi, Tom,
> 
> --- On Tue, 2/24/09, Tom Rini <trini at kernel.crashing.org> wrote:
> 
> > > Presumably, you wwant to avoid "right off the PS" so that
> > > you *won't* have to modify the PC *or* dangle pigtails out
> > > of the case.
> > 
> > That's one reason.  There's already enough loose
> > cables hanging around down there.
> 
> <grin>  You should look under my work tables!  :-(

I bet it looked like mine used to :)

> > > Can't you just tie 5V DC fan to the power pins on the USB
> > > connector? Or, do you want some sort of "intelligent"
> > > thermal management? (note that you can buy variable
> > > speed fans that have a thermistor in the airflow and
> > > adjust their own speed.
> > 
> > Mainly it's that anything smaller than house wiring
> > isn't something I'm good at :)
> 
> Ah!  :>  I'd have suggested cutting the cable off a
> keyboard/mouse/lefthandedsmokeshifter/etc, probing
> to find which pair yield +5 & GND and then tying those
> to the red/black wires on a suitable fan.  I.e.,
> just strip them and twist together.
> 
> > Right now I'm looking at
> > http://www.newegg.com/Product/Product.aspx?Item=N82E16834981011
> > and
> > thinking I could probably tack that up without too much
> > trouble.
> 
> I didn't see how the power was terminated (though I assume
> USB connector).  You'll just reorient that vertically
> at the rear of the cabinet to move air through?

It looks to be USB powered, yeah.  And yes, cut a hole and get out the
liquid nails.

-- 
Tom Rini