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You can overload your CPU, and hence generate heat, by using cpuburn: CPU stress tester for Ubuntu Linux - http://www.hecticgeek.com/2012/03/cpuburn-cpu-stress-test-ubuntu-linux/ However if you are wary of running external programs then you can try CPU hammer shell script which uses awk to generate load by doing mathematical calculations ...


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Select System Settings Click on Sound Click the Input tab and you should see Internal Microphone


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By asking this question I assume you do not care about battery backup much. Having said that, CPU Frequency scaling is what you are looking for. Dynamic Frequency Scaling is a technique by which the frequency of a microprocessor can be automatically adjusted "on the fly," either to conserve power or to reduce the amount of heat generated by the chip. More ...



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