Threadripper Thermal strangeness.

[Rebecca Cran]

On Monday, 5 November 2018 16:44:59 MST Matt Joras wrote:
> You have to use the sensor_offset to get the actual value at the die.
> I believe for all Threadripper chips the offset is -27C.

Oh, thanks!  I'm guessing there's something different about mine though, 
because 114 - 27 is 87, and under Windows is reports 67C when it's completely 
maxed out.  Maybe with its 4 units (32 cores) the offset is -54C (2*27) 
instead?

-- 
Rebecca

> On Mon, Nov 5, 2018 at 3:14 PM Rebecca Cran via freebsd-hackers
> 
> <freebsd-hackers at freebsd.org> wrote:
> > On Monday, 5 November 2018 14:23:22 MST Zaphod Beeblebrox wrote:
> > > kldloading "amdtemp.ko" reports an idle temp of 55C or so and heavy
> > > compiling (make world -j32) reports temperatures as high as 95C ... upto
> > > and including some instability and/or crash or rebooting.
> > 
> > I have a new Threadripper 2990WX in an ASUS motherboard - and mine just
> > reports ridiculous values:
> > 
> > % sysctl dev.amdtemp | grep sensor
> > dev.amdtemp.3.core0.sensor0: 112.6C
> > dev.amdtemp.3.sensor_offset: 0
> > dev.amdtemp.2.core0.sensor0: 113.5C
> > dev.amdtemp.2.sensor_offset: 0
> > dev.amdtemp.1.core0.sensor0: 111.7C
> > dev.amdtemp.1.sensor_offset: 0
> > dev.amdtemp.0.core0.sensor0: 114.5C
> > dev.amdtemp.0.sensor_offset: 0
> > 
> > --
> > Rebecca
> > 
> > 
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