G5 Quad Fans full speed after 1 min

[Francis Little]

Booting with smp disabled, and now about an hour in to a buildworld...

It seems to be keeping it's calm.

It's a shame to lose 3/4 of its horses!



On Sun, 19 Jan 2020 at 14:16, Jason Bacon <bacon4000 at gmail.com> wrote:

> On 2020-01-19 02:38, Francis Little 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?
> >
> > Regards
> > _______________________________________________
> > freebsd-ppc at freebsd.org mailing list
> > https://lists.freebsd.org/mailman/listinfo/freebsd-ppc
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> Yes, the problem is intermittent with respect to boot-up.  If I reboot a
> few times, eventually the problem does not return and the system will be
> stable until the next reboot.
>
> Hoping an upgrade to a 13 snapshot might solve it.
>
>      JB
>
> --
> Earth is a beta site.
>
>
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