Re: AMD K15 sensor support

From: Jung-uk Kim <jkim_at_FreeBSD.org>
Date: Thu, 23 Feb 2012 18:11:59 -0500
On Thursday 23 February 2012 05:08 pm, Sam Fourman Jr. wrote:
> > Can you please try this patch?
> >
> > http://people.freebsd.org/~jkim/amdtemp3.diff
> >
> > Thanks,
> >
> > Jung-uk Kim
>
> After that patch temp appears to work, but the value seems low not
> sure why

--- >8 --- SNIP! --- >8 ---

Actually it is kinda expected.  Please see CAVEATS section of the new 
manual page:

For Family 10h and later processors, ``(the reported temperature) is a 
non-physical temperature measured on an arbitrary scale and it does 
not represent an actual physical temperature like die or case 
temperature. Instead, it specifies the processor temperature relative 
to the point at which the system must supply the maximum cooling for 
the processor's specified maximum case temperature and maximum 
thermal power dissipation'' according to BIOS and Kernel Developer's 
Guide (BKDG) for AMD Processors, 
http://developer.amd.com/documentation/guides/Pages/default.aspx.

BTW, the temperature reading goes up when the system is loaded and 
goes down when it is idle, right?  Just making sure...

Thanks,

Jung-uk Kim
Received on Thu Feb 23 2012 - 22:12:08 UTC

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