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Path: utzoo!mnetor!seismo!ll-xn!cit-vax!mangler
From: mangler@cit-vax.Caltech.Edu (System Mangler)
Newsgroups: net.unix-wizards
Subject: Re: Continuous Winchester use
Message-ID: <939@cit-vax.Caltech.Edu>
Date: Sun, 31-Aug-86 03:30:22 EDT
Article-I.D.: cit-vax.939
Posted: Sun Aug 31 03:30:22 1986
Date-Received: Sun, 31-Aug-86 05:36:53 EDT
References: <3166@brl-smoke.ARPA> <250@desint.UUCP>
Organization: California Institute of Technology
Lines: 10
Summary: power (thermal) cycling a bad idea

In article <250@desint.UUCP>, geoff@desint.UUCP (Geoff Kuenning) writes:
> Now my only problem is deciding whether to leave the system on all the
> time [...] or continue my current cycling on/off behavior to extend the
> life of the power supply, CRT, and other electronics.

Cycling the power causes thermal expansion/contraction which eventually
leads to fatigue failures.  If you want to extend the life of the
electronics, keep them cooler with better ventilation or fans.

Don Speck   speck@vlsi.caltech.edu  seismo!cit-vax!speck