[Beowulf] Desktop fan reccommendation

Vincent Diepeveen diep at xs4all.nl
Wed Jun 6 07:49:07 EDT 2012


Nathan at closer look it seems there is on the outside a tiny fan as  
well for the psu.
Probably that's the thing making the big noise. Possibly it's a 15k  
rpm fan or something?
Hah at least 65 decibel i'd guess if you measure correctly.

It'll have to deliver enough airflow to cool the psu part?

Maybe you could do the same thing i'm doing, that's just put a huge  
fan at the outside,
rewire the 120-230 volt wires and deliver that power in a different  
manner,
it might be able to suck out enough, especially if you get rid of the  
grill of the 15k RPM fan,
it'll be easier for it to suck out air there. Also the limiting grill  
of the heat exchanger if you cut
it out it might work.

You can just test it. whether it works. Should work ok i guess. You  
need a capable fan outside though.
How much must it cool, probably a high clocked socket 2011 that's  
fulltime
crunching in AVX will eat a 260 watt or so from the powertap?



On Jun 5, 2012, at 7:48 PM, Nathan Moore wrote:

> All,
>
> This is barely beowuf related...
>
> New desktop machine is a Shuttle SX79R5, http://us.shuttle.com/ 
> barebone/Models/SX79R5.html
>
> In the past, shuttles have been very quiet, but this one has a  
> fairly loud variable speed fan on the CPU heat exchanger.  I  
> normally buy replacement parts from vendors like newegg, but their  
> selection of 90mm case fans mainly seems to be described by CFM and  
> whether the fan has LED lights mounted in it (FYI, that is not a  
> selling point).
>
> So, is there an engineer's version of newegg that ya'll know about?  
> There must be a super quiet 90mm fan out there that I can pick up  
> for $10...
>
> Nathan Moore
> Physics, Winona State University
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