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Article #10922Re: Heat Output of New uPs
From: Jim Gettys
Date: Mon, 14 Dec 1992 11:30
Date: Mon, 14 Dec 1992 11:30
28 lines
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1773 bytes
In article <Bz85L8.Bnx@exnet.co.uk>, dhd@exnet.co.uk (Damon) writes: > In article <1992Dec9.155802.29342@sequent.com> thall@sequent.com (Trevor Hall) writes: > >Here's a new thread. Think about the latest generation of uPs: Alpha, > >R4000/4400, Pentium, M88110. Now think about the heat dissapation of > >those chips. I think the Alpha's in the 20+ watt range, Pentium is > >12-15 watts. Now try to imagine one of these guys in a laptop... > > > >Any ideas for (safely) implementing a laptop based on one of these > >chips? If I remember correctly, I think 10-20 watts was about the > >heat output of the Kenner Easy-Bake Oven. I can't picture putting > >one of those on my lap for a 2-3 hour plane trip. > > Well, I think one could use it for ruggedised computing in colder > climes (like Scotland and northwards). > > "150SPEC with built in hand/crutch warmer, maintains typing speed at > -5C..." > Well, of course, you turn down the clock way down when you don't need the speed... So long as the total computation/watt hour stays the same, I'll take the faster machine... Another suggestion use for the left over heat has been as a coffee warmer; got to keep the user running fast as well :-). -- Digital Equipment Corporation Cambridge Research Laboratory
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Newsgroups: comp.arch Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!decwrl!deccrl!news.crl.dec.com!jg From: jg@crl.dec.com (Jim Gettys) Subject: Re: Heat Output of New uPs Message-ID: <1992Dec14.113000.1024@crl.dec.com> Sender: news@crl.dec.com (USENET News System) Organization: DEC Cambridge Research Lab References: <1992Dec9.155802.29342@sequent.com> <Bz85L8.Bnx@exnet.co.uk> Distribution: usa Date: Mon, 14 Dec 1992 11:30:00 GMT Lines: 28