[...] > > Yes, now as you say it, I can confirm this for an iBook G4. I had the > same problem with high CPU load. The fan starts spinning and increase > its speed until it runs very fast. Then it starts to pulse (increase > speed -> decrease speed -> inc...) and after a minute or so the iBook > powers off. I thought the firmware caused the shutdown due to a too > high temperature, but if I hear you, it makes me wonder. I think I > could reproduce this, but it happened some times ago. Since then I pay > attention on the CPU load and run programs like firefox with nice to > make cpufreqd do not speed up the CPU. > [...] Are you using the therm_adt746x-module? Then I might at least be able to explain those increase/decrease behaviour: One of the sensors (probably the one nearby the graphics chip) is fairly cold, whereas the other one shows hot temperature. I posted a patch for the module some time ago to change that behaviour and at least it worked for me (TM). Regards, Michael
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