On Tue July 24 2007 22:41, Keith Edmunds wrote:
> On Tue, 24 Jul 2007 22:22:47 +0100, xendistar@??? said:
> > I was thinking
> > about purchasing 2 or 3 little 25mm round fans and mounting them on the
> > rear panel. Now I am not to sure if a) there is sufficent power to run
> > three fans or how to wire them up? Any thoughts or suggestions?
>
> One big fan is quieter and more efficient that multiple little fans. One
> of the problems that the latter solution creates is recirculation, where
> air pushed out by one fan leaks back through the gap between fans (path of
> least resistance). This is similar to the misguided idea that separating
> 1U servers in a rack with 1U gaps aids cooling. It does, so long as you
> fit blanking plates in the empty spaces. Otherwise the hot air from the
> back of the servers is simply recirculated to the front.
>
> --
> Keith Edmunds
Point taken, but the problem is there is little room to fit a large fan with
out some drastic case modification.
I will probably be at the BaB on the 4th at Southampton Uni and will have the
box with me so hopefully anybody with any thoughts can have a look.
Regards
Tim
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