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From: wnn@ornl.gov
Newsgroups: comp.sys.mac.hardware
Subject: Re: Leaving Mac On
Message-ID: <1991Feb15.172515.261@cs.utk.edu>
Date: 15 Feb 91 17:25:15 GMT
References: <0bhUNXS00WB9MAOkdI@andrew.cmu.edu> <1991Feb11.052721.12610@bronze.ucs.indiana.edu> <1991Feb13.034308.21139@m.cs.uiuc.edu> <88434@tut.cis.ohio-state.edu>
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In article <88434@tut.cis.ohio-state.edu> rubin@oak.cis.ohio-state.edu (daniel
j rubin) writes:
>The most common source of electronical failure is due to cracks in the
     ^^^^^^^^^^^
>traces on the PC boards due to thermal expansion which results in replacing 
>the entire board.

Obviously you don't have much experience in PC maintenance. Such cracks are
*VERY* rare.
What's common are "cracks" in the solder points where components are attached
to the
traces. In many cases, reheating those points solves the problem. If the
component in
question has been damaged, or another one in the affected circuit has burned
out
because it experienced overload, replacement of the affected components does
the job.
Even if a trace has cracked, it can usually be fixed easily with a jumper wire.

>If you are concerned about money and the environment, I 
>would turn your monitor off and always leave your CPU on. Just a suggestion.
>I just want to throw in the comment that if you want to save the environment
>think about alternative power sources like nuclear

Aha! One of those nukies who wants to convince the world to squander energy to
justify
the need for nuclear power plants.

>( the same people who 
>complain about the green house affect seem to shoot down the only viable
option
                                                              ^^^^^^^^^^^
>at this time - frustrating ).

Several independent government funded studies have come to the conclusion that
conservation is the most viable option!

Continuing improvements in wind and solar have made them a viable option too.
If we don't care whether we are wasting energy and money, we will use nuclear,
but if we would like to save some money, and are willing to use energy more
wisely, alternative sources will easily supply an increasing proportion of our
needs.

Follow-up on this issue to talk.environment

Wolfgang N. Naegeli
Internet: wnn@ornl.gov    Bitnet: wnn@ornlstc
Phone: 615-574-6143       Fax: 615-574-6141 (MacFax)
QuickMail (QM-QM): Wolfgang Naegeli @ 615-574-4510