Aporte original por: Sean M ,
Cleaning the fan should help if its clogged up, but at six years old the thermal paste on the system is likely dried up and crusty. A laptop this old should have it's thermal paste replaced. If blowing dust from the fan doesn't seem to help I'd recommend looking up a video on how to disassemble the computer and clean off the old paste and replace it with something like Arctic Silver 5. Also you can check the temperatures using a program like HWMonitor (free, you can find it just by googling the name). The program will show you the reported temperatures of each core of your CPU. They should stay under 90C or so while you're using the computer. If they're going higher then you definitely need to replace thermal paste, and if they're still too high after that then you may need to replace the whole heatsink as well.