Thermal Problems

Mark Hahn hahn at physics.mcmaster.ca
Wed Jul 23 18:32:33 EDT 2003


> We are using Dynatron 1U CPU fans which are supposed to spin at 5400 rpm but

I don't think it makes much sense to use cpu-fans in 1U chassis - 
not only are cpu-fans *in*general* less reliable, but you'd 
constantly be facing this sort of problem.  not to mention
the fact that the overall airflow would be near-pessimal.

far better is the kind of 1U chassis that has 1 or two fairly
large, reliable centrifugal blowers forcing air past passive 
heatsinks on the CPUs.  there are multiple vendors that sell
this kind of design.

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