searching for a wide alpha cpu heatsink (2nd request)

[Michael Kronsteiner]

Hello :)

I have an intel- boxed cooler at hand (including fan, the round one) might this be big enough to fit your cooling needs?

best regards

Michael
-------- Original-Nachricht --------
> Datum: Tue, 11 Nov 2008 15:35:13 +0100
> Von: Alexander Huemer <alexander.huemer at sbg.ac.at>
> An: Linux on Alpha processors <axp-list at redhat.com>
> Betreff: Re: searching for a wide alpha cpu heatsink (2nd request)

> Hoover, Tony wrote:
> > Interesting.  All my LX's and SX (and even my EB64+, back in the day)
> > all had 3 wire fans.  I thought it was required.  IIRC, You could use a
> > PC fan, but you have to switch the power and tach lines (I think, check
> > pin-outs before taking my word on that).  I remember that I did re-wire
> > a PC fan for one of my alphas.
> >
> >
> > I guess if you have something to generate psuedo-tach pulses, you could
> > passively cool an alpha (with a large enough heat-sink).  I'll  be
> > interested in hearing the outcome.
> >
> > If you know a machinist, you could have him build a heat sink for you
> > out of a block of aluminum.  Remember, surface area is the key, so use a
> > small mill to make lots of fins.
> >
> >
> > Good luck
> >
> > T
> >
> > On Mon, 2008-11-10 at 17:59 -0500, Jay Estabrook wrote:
> >   
> >> Hi, Tony,
> >>
> >> He's looking to do this to an LX164, and mine only has a 2-wire fan,
> >> so I think it may be OK?
> >>
> >> --Jay++
> >>
> >> Hoover, Tony wrote:
> >>     
> >>> You still have to have a fan.  Alpha's don't run if it doesn't detect
> >>> pulses on the tach line for the CPU fan.
> >>>
> >>> T
> >>>
> >>>
> >>> On Mon, 2008-11-10 at 18:35 +0100, Alexander Huemer wrote:
> >>>       
> >>>> Marc Schlensog wrote:
> >>>>         
> >>>>> On Mon, 10 Nov 2008 17:00:18 +0100
> >>>>> Alexander Huemer <alexander.huemer at sbg.ac.at> wrote:
> >>>>>
> >>>>>
> >>>>>           
> >>>>>> hi,
> >>>>>>
> >>>>>> i got some offers from several people here on the list.
> >>>>>> thanks a lot for that!
> >>>>>> some people said they wanted to take a look in their basements or
> the
> >>>>>> like. so, here is my second request: does anybody have a WIDE alpha
> >>>>>> heatsink for me?
> >>>>>> wide means > 5.5cm or 2.2in.
> >>>>>> ideal would be somethink like
> >>>>>> http://www.tbcs-online.de/e-bay/CPU/KN610-CA_SMP_1.jpg
> >>>>>> that should be ~10cm or 3,9in wide.
> >>>>>>
> >>>>>>             
> >>>>> What are you trying to do? Turn your LX into a space heater?
> >>>>>
> >>>>> _______________________________________________
> >>>>> axp-list mailing list
> >>>>> axp-list at redhat.com
> >>>>> https://www.redhat.com/mailman/listinfo/axp-list
> >>>>>
> >>>>>           
> >>>> no, i am trying to cool my alpha with less noise.
> >>>>
> >>>> _______________________________________________
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> >>>> https://www.redhat.com/mailman/listinfo/axp-list
> >>>>         
> >>> _______________________________________________
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> >>>
> >>>       
> >> _______________________________________________
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> >>     
> >
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> >   
> hi tony,
> 
> i have a 3 wires too.
> re-wiring a pc fan is not possible to my knowledge, because the signal 
> is completely different.
> a pc wants to have pulses (as you said) so that they can measure the 
> rotating speed of the fan.
> the original fan of my alpha (some strange panaflo) gives a certain 
> voltage on one wire if the fan is turning. when you stop the fan, the 
> voltage goes up and the alpha stops. when you remove the fan, the 
> voltage is missing and the alpha does not run either.
> 
> my "alpha fan simulator" does just provide the required voltage, that's
> all.
> 
> building a heatsink from scratch is of course possible, but that's not 
> the way i want to go, if i find somebody who has a BIG BIG heatsink for
> me.
> 
> -- 
> regards
> alex
> 
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