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From: amir@ms.uky.edu (Amir Sadr)
Newsgroups: comp.sys.att
Subject: Re: Weird 3b1 fan behavior
Message-ID: <7784@f.ms.uky.edu>
Date: Fri, 27-Nov-87 16:32:13 EST
Article-I.D.: f.7784
Posted: Fri Nov 27 16:32:13 1987
Date-Received: Sun, 29-Nov-87 22:52:36 EST
References: <21740@ucbvax.BERKELEY.EDU> <30@icus.UUCP>
Reply-To: amir@ms.uky.edu (Amir Sadr)
Distribution: na
Organization: U of Kentucky, Mathematical Sciences
Lines: 25

In article <30@icus.UUCP> lenny@icus.UUCP (Lenny Tropiano) writes:
>In article <21740@ucbvax.BERKELEY.EDU>, maddox@renoir.Berkeley.EDU 
>(William Maddox) writes:
>| 
>| The 3b1 apparently uses a variable-speed fan.  On mine, the speed varies
>| rather erratically.  Not only are the speed changes annoying to the ear,
>| but the fan seems to be running slowly most of the time, such that the air
>| leaving the fan is warm enough that I am concerned that the machine may
>| not be adequately cooled.  


I have noticed the same problem with my newly purchased 3b1 also.  However,
the problem has recently gone away.  I'm sure it is not because I have
got use to it.  It really bothered me to the point where I had to
compare the sond of my fan to several other 3b1's to make sure everything
was okay.  Be that as it may, even now if I tap on the fan's grille it
causes the fan to run at a noticeably slower speed.  After a few minutes
the fan returns to it's (I suppose) normal speed.  Unless the air
leaving your fan is REALY hot, I do not think there is anything wrong
with your machine.  However if your machine reaches a specified high
temperature, it will automatically do a shutdown.

Best wishes

Amir-