[NTLUG:Discuss] OS Thermal shutdown - 90c

[Stephen Davidson]

Greetings.

Many thanks to those from the Linux install project today for
helping/solving various issues I had run into.  One issue still
outstanding is the "false alert" thermal shutdown.  Per discussion, I
eventually figured out how to uninstall lm-sensors.  However, when the
system was loaded, again it shutdown under load.  From the logs:
====
kernel: [1082.269446] thermal thermal_zone0: critical temperature
reached (90 C), shutting down
====

The BIOS doesn't even run the fans to maximum until the system hits 80-85c.

While doing additional research, I found that there had been a known
issue with HP BIOSes incorrectly reporting critical temperatures to the
OS, and MS making many enhancements to MS Vista to deal with this (the
machine in question is from the era of Vista, btw).  The most egregious
reported incident was where the machine reported a critical temperature
of -70c (yes, that's 70c below freezing as maximum operating temp) to
the OS.

I have found many additional reports and complaints of premature
shutdown due to temperatures above "Kernel Approved values", but I've
NOT found any way to adjust/correct this.  (The most complaints I've
seen had to do with CPUs with manufacturer maximums of 145c, although
THOSE systems seem to have their shutdowns kicking in at the 105 and/or
125c mark).

I've spent ANOTHER DAY trying to chase this down (ok, only 1/2 the
morning as well as the entire afternoon), still w/o success.  With what
this particular item is costing me (including in $$ as well as time),
I'm really needing some help or direction.

Regards,
Steve