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From: Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net>
To: freebsd-questions@freebsd.org
Date: Sun, 19 Apr 2009 06:53:57 +0200
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Cc: Christopher Chambers <cchamb0@interchange.ubc.ca>
Subject: Re: Fan Speed
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On Sunday 19 April 2009 03:06:07 Christopher Chambers wrote:

> My laptop runs a little hot. Is it possible to increase the default fan
> speed? I'm running version 7.1 on an acer.

Active cooling is under control of ACPI, typically not exposed to non-windows 
operating systems:
hw.acpi.thermal.tz0.active: -1

Value other then -1 you might actually be able to change it.

But...your best 15USD spent will be a laptop cooling pad, best one powered by 
the USB port. Some lappies just can't be fixed with fanspeed, because of bad 
design and a cooling pad will take at least 5C off.
-- 
Mel