Date: Fri, 3 Jan 1997 12:42:35 +1030 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: tony@dell.com (Tony Overfield) Cc: msmith@atrad.adelaide.edu.au, freebsd-hackers@freefall.freebsd.org Subject: Re: CPU fan detection... Message-ID: <199701030212.MAA18262@genesis.atrad.adelaide.edu.au> In-Reply-To: <3.0.1.32.19970102200622.00699f64@bugs.us.dell.com> from Tony Overfield at "Jan 2, 97 08:06:31 pm"
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Tony Overfield stands accused of saying: > At 11:48 AM 1/3/97 +1030, Michael Smith wrote: > >Just to change the subject slightly... > > > >The Intel CPUs with integrated fans do indeed have a fan sensor of some > >sort. Anyone know how to read it? It'd make for a good idle-loop > >check... > > The Intel 486->Pentium Overdrive CPU, with the integrated fan, will disable > the internal clock multiplier when the fan stops. You could check to see > if your 100 MHz CPU suddenly seems to be running at only 33 MHz. I have one of these, which comes with a utility to monitor the fan. You're suggesting that this just checks the CPU speed? Ick, forget I mentioned it. I thought that the other integrated-fan CPUs had more than two contacts on the fan connector & thus probably had a status bit somewhere for the fan... -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[
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