Date: Sun, 13 Mar 2011 21:23:48 +0100 From: Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no> To: freebsd-ppc@freebsd.org Subject: Re: PowerMac G5 Quad - fan control? Message-ID: <20110313212348.a4fd91cb.torfinn.ingolfsen@broadpark.no> In-Reply-To: <4D7BAA4E.4070908@freebsd.org> References: <20110312151608.b3240f3d.torfinn.ingolfsen@broadpark.no> <4D7BAA4E.4070908@freebsd.org>
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On Sat, 12 Mar 2011 11:15:58 -0600 Nathan Whitehorn <nwhitehorn@freebsd.org> wrote: > Different G5 models have different thermal regulation schemes. On the > PCI-Express-based systems (e.g. the Quad), CPU temperatures are read out > by the smusat driver, and fan control is done by the smu driver. I wrote > a small daemon to manage fans on my dual-core G5 that you may want to > adapt that can be found at > http://people.freebsd.org/~nwhitehorn/powermac112-fancontrol.c Thanks! I've adapted it, my version is here[1]. How did you figure out the target temperature? I just run mine in a shell (it needs to be root to change those sysctls), is that the best way. My machine just panic'ed (sleeping thread) but I don't know if that was related to this program. References: 1) http://sites.google.com/site/tingox/powermac112-fancontrol-ti.c -- Torfinn
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