Threadripper Thermal strangeness.

[Matt Joras]

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.

Matt
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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