Airflow through your computer is an important part of keeping it cool and running well. Dust and dirt often block fans.
You’ve checked for dust, but the computer is still running hot. I’ll point you in the direction of a few more things that could be causing this heat wave… including a heat wave itself.
A fan running at high speed means one thing: heat! The question is, how do you determine the cause and cool down your machine. It might be easier than you think.