Re: cpu temperature readings

[Michael van Elst <mlelstv%serpens.de@localhost>]

On Sun, Jul 02, 2023 at 04:16:51PM +0700, Robert Elz wrote:
> 
>         if ((msr & MSR_THERM_STATUS_CRIT_STA) != 0)
>                 edata->state = ENVSYS_SCRITICAL;
> 
> that is, rather than reaching some configured limit, simply being told
> by the cpu that the status is critical ?

Yes. That bit also triggers powerd.


>   | or something completely
>   | different (motherboard power regulators or even the PSU?).
> 
> Certainly.   Anything is possible.   I suspect something changed
> (broke, or wore out) about a month ago - clearly it is marginal, and
> only seems to affect things in turbo mode (higher power draw), as
> this is a new phenomenom in the past month or so.

It's also possible that the heat sink needs attention (re-apply thermal
paste or similar), this might prevent the CPU from reaching a critical
temperature.


Greetings,
-- 
                                Michael van Elst
Internet: mlelstv%serpens.de@localhost
                                "A potential Snark may lurk in every tree."