Postagem original de: Dan ,
Sadly I suspect your heat sink is bad. You'll need to change it as well as clean & apply fresh thermal paste. if you do a careful inspection you'll likely see some wetness near the heat transfer tube on the logic board or you'll see a pin hole in the tube. If you have access to a non contact thermometer or FLER scope you can see the heat is not transferring to the fins. Once you get the new heat sink with a good digital scale you'll note the bad unit will be slightly lighter than the new unit.