Damn, no edit in launchpad.
Ok there is one error. For my suggested values it has to be:
sudo echo -n "115:0:100:60:0" > /proc/acpi/thermal_zone/*/trip_points

I'd suggest everybody to disable powernowd since the kernel gouvernors
are more straighforward
(http://www.thinkwiki.org/wiki/How_to_make_use_of_Dynamic_Frequency_Scaling)

I'm not too sure about the interactions between powernowd, cpufreq and
throttling. In theory a passive trip-point of e.g. 80 and a critical
point of 90 should be sufficient and put less strain on the hardware. I
don't know whether pownernod prevents throttling. And what about cpufreq
throttling? Is it as effective as Thermal Monitor?

Btw, if your temperature is not read correctly, don't forget to  enable
polling  temperature, as said before.
(http://acpi.sourceforge.net/documentation/thermal.html)

-- 
CPU overheats during high usage "throttling <not supported>"
https://bugs.launchpad.net/bugs/22336
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