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Re: [SOLVED] Thinkpad T61 Critical temperature reached (103 C), shutting down

On Tue, Aug 13, 2013 at 3:19 PM, Alphonse Ogulla <aogulla@gmail.com> wrote:
> On Tue, Aug 13, 2013 at 12:15 PM, Tom Grace
> <lists-in@deathbycomputers.co.uk> wrote:
>> On 13/08/13 10:02, Alphonse Ogulla wrote:
>>> After a lot of googling, I decided to tear down the laptop, expose the
>>> cooling fan and give it a good vacuum job to get rid of any dust that
>>> might have accumulated and was possibly interfering with the CPU
>>> cooling.  I assembled all the pieces, rebooted and re-run the rsync
>>> copy command which this time ran to completion without overheating.
>> You might want to try some canned air on the heatsync attached to the CPU
>> fan, or making sure the laptop is near some aircon etc.
>>> root@curiosity:~# echo "level disengaged" > /proc/acpi/ibm/fan
>>> -bash: echo: write error: Invalid argument
>>> root@curiosity:~# echo "level 7" > /proc/acpi/ibm/fan
>>> -bash: echo: write error: Invalid argument
>> Did you first load the ibm acpi module with the fan_control argument ?
>> rmmod thinkpad_acpi
>> modprobe thinkpad_acpi fan_control=1
>> I had the same issue with my thinkpad, and wrote this [1] to work around it,
>> though in the end canned air was the proper solution.
>> [1] https://github.com/theothertom/thinkpad-temp_mon
>> --
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> I hadn't loaded the thinkpad_acpi module with the fan_control
> argument. Done that and I'm now able to set the fan speed. Many thanks
> for that.
> I've followed the instructions at
> https://github.com/theothertom/thinkpad-temp_mon and no sooner had I
> began testing in a another terminal, the laptop shutdown but strangely
> without any heavy lifting tasks running in the background.
> Message from syslogd@curiosity at Aug 13 14:42:12 ...
> kernel:[23090.974571] Critical temperature reached (103 C), shutting down.
> Broadcast message from root@curiosity (Tue Aug 13 14:42:12 2013):
> The system is going down for system halt NOW!
> Regarding the canned air solution, is it a one-off job to clean out
> the CPU heat sink or is it for a continuous circulation of air
> directly over the heat sink?
> --
> Many thanks,
> Alphonse

Tom's solution of monitoring the Thinkpad temperature and adjusting
the fan speed at [1] worked perfectly for me, albeit after tweaking
temp_mon cron file to run temp_mon.sh script every 2 minutes instead
of 5.

[1] https://github.com/theothertom/thinkpad-temp_mon

I failed initially because I used wget with the direct link and ended
up downloading the html page instead of the actual file(s). Should
have used "Download ZIP" option in github or at least opened the files
before testing. My bad.

I'm still curious to know how the canned air solution is applied;
one-off or continuously? Anyway, my issue is solved for now. Many
thanks Tom.


Alphonse Ogulla
Nairobi, Kenya

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