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From: hsgj@batcomputer.TN.CORNELL.EDU (Dan Green)
Newsgroups: net.micro.mac
Subject: Re: Power Supply Troubles?
Message-ID: <325@batcomputer.TN.CORNELL.EDU>
Date: Mon, 19-May-86 16:51:18 EDT
Article-I.D.: batcompu.325
Posted: Mon May 19 16:51:18 1986
Date-Received: Fri, 23-May-86 22:16:00 EDT
References: <13507@ucbvax.BERKELEY.EDU> <3345@ut-ngp.UUCP> <2177@peora.UUCP>
Reply-To: hsgj@batcomputer.UUCP (Dan Green)
Organization: Theory Center, Cornell University, Ithaca NY
Lines: 27

In article <2177@peora.UUCP> jer@peora.UUCP (J. Eric Roskos) writes:
>[...]
>
>Incidentally, I notice in my new power supply board that three of the
>heat sinks have stubs of wires from rectifiers on them, where apparently
>they took the rectifier + heat sink out, cut off the rectifier, and
>reused the heat sink on a TO-220 transistor instead (so they didn't have
>to reuse the hole where the rectifier lead was soldered).  This makes
>me think those rectifiers must also fail frequently, which in turn makes
>me think it really *does* get too hot in there...
>-- 
>E. Roskos

At the terminal center where I work there are 40 macintoshes (512K) which
are on continuously 20 hours a day, seven days a week (ie they are always
in use...).  At least once a day, one of the macs will mysteriously crash
because, in my humble opinion, it is overheating.  The vents on the top
get very warm.  If a user puts a book or papers over the top vents the
probability of a crash goes up by about 90% :-(.
   Occasionally I use PC's, and while I am not fond of the fan noise, I
am at least reassured that the thing won't crash due to overheating.  Of
course, I must admit that the PC's are usually empty while the Macs are
usually in use...

-- 
Dan Green    BITNET: hsgj@cornella   ARPA: hsgj@vax2.ccs.cornell.edu
~~~~~~~~~    UUCP:   {decvax,ihnp4,allegra}!cornell!batcomputer!hsgj