I am using my macbookpro 1211 for live vjing with resolume. while that worked fine for quite a time, last weekend the CPU went into core shutdown in the middle of a set. Clubs can be hot. Embarrassing. I disassembled the machine to see if the cooling is clogged or something, but everything seemed nice and clean. Today I read about some cooling problems and stumbled over coolbook. I reduced the CPU Voltage from 1,2V at 2,171GHz to 1,025V. So far the System appears stable. Temperatur dropped from about 81-84°C down to 69-71°C. So far this seems to resolve my issues. I did not lower the voltage bellow that point so far, maybe I'll try later.
Anyone else here got some experiences in undervolting? Please post what you found.