cpu overheating

Greg Trounson gregt at maths.otago.ac.nz
Tue Dec 12 01:40:29 UTC 2006


Arthur Pemberton wrote:
> On 12/11/06, Greg Trounson <gregt at maths.otago.ac.nz> wrote:
>> James Wilkinson wrote:
>> > Mike Chalmers wrote:
>> ...
>> >> Once again, things like this are unacceptable. I am afraid to use
>> >> Fedora 6 now. I alos, have am having problems after a clean
>> >> installation.
>> >
>> > That's misplaced fear -- fear your *hardware*.
>>
>> Unless there is a problem with, say, lmsensors mis-reading the CPU 
>> temperature register
>> and freaking out.
>>
>> Not impossible, I should think.
>>
>> Greg
> 
> I do not think that lm_sensors is involved in that process.

Apologies, I should have said acpid.

To add further credibility to the dodgy software theory though, what hardware/firmware 
protection mechanisms do you know of that upon detecting high CPU temperature dump the 
user back to a login screen?

Returning to the login screen could be either a reboot or killing X, neither of which a 
sane BIOS would do in a CPU overheat event.  Every BIOS I've ever seen shuts the machine 
down, which makes more sense if it's overheating.

Greg





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