Re: AXi board and 400MHz CPU?

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#2567

From: WilliamREMOVEWyattTHIS
Date: Mon, 29 Dec 2003 15:29

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> Probably because of cooling restrictions. Ultra 5's are fairly compact
> enclosures compared to the tower version (ie. the Ultra 10's).
> 
> 440 Mhz CPU's definitely need to have a fan cooling the heatsink directly.
> There might not be room for one in the Ultra 5 enclosure.
> 

What is the scaling law for CPU speed vs. temperature?  The 10% difference
from 400 to 440 would be almost 50% in heat if it is a n**4 scaling.

-- 
Bill Wyatt (REMOVEwyattTHIS@cfa.harvard.edu) "remove this" for email
    Smithsonian Astrophysical Observatory  (Cambridge, MA, USA)

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Date: Mon, 29 Dec 2003 10:29:09 -0500
From: WilliamREMOVEWyattTHIS <REMOVEwyattTHIS@cfa.harvard.edu>
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Subject: Re: AXi board and 400MHz CPU?
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