Date: Sun, 19 Jan 2020 11:16:14 +0100 From: Michael Tuexen <tuexen@freebsd.org> To: Francis Little <oggy@farscape.co.uk> Cc: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: Re: G5 Quad Fans full speed after 1 min Message-ID: <9A615A24-8099-46CE-B224-F55FF07EEFAF@freebsd.org> In-Reply-To: <CAGSRtz76TC44UiECMepLAZjXE=H33sg4OFLJpmZpNCSEwE=ETQ@mail.gmail.com> References: <CAGSRtz76TC44UiECMepLAZjXE=H33sg4OFLJpmZpNCSEwE=ETQ@mail.gmail.com>
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> On 19. Jan 2020, at 09:38, Francis Little <oggy@farscape.co.uk> wrote: > > Hi, > > My G5 Quad is running current from a few days ago, but this issue has been > happening for a long time. > > After about 1 min of uptime, the fans go full speed. > > As soon as I query anything like CPU temp or fan rpm with sysctl, the fans > return to a normal speed. > > 1 min later the fans go full speed again. > > I've been working round this for some time with a cron job that runs sysctl > with one of the cpu temp sensors to calm the system. > > If I boot to OS X 10.5 and load the system, the fans are stable. > > Does anyone else get this? Yepp, this happens for a long time now. Disabling SMP works around it. To disable SMP, put in /boot/loader.conf kern.smp.disabled=1 Best regards Michael > > Regards > _______________________________________________ > freebsd-ppc@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-ppc > To unsubscribe, send any mail to "freebsd-ppc-unsubscribe@freebsd.org"
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