Hp pavillion a818n

I HAD THIS PROBLEM WITH MY PC AS WELL..... I HAVE THE SAME ONE. WHEN YOU USE HIGH CPU APPLICATIONS, YOUR FAN ACCUMULATES LOTS OF DUST IN IT, WHEN THE FAN GETS BLOCKED UP, YOUR PROCESSER DOESNT COOL DOWN, TRY TAKING THE FAN OUT AND THE METAL PART, AND CLEANING IT OUT, BUT DONT TAKE OFF THE WHITE PASTE... JUST TAKE OFF THE DUST FROM THE FAN, THAT SHOULD COOL DOWN YOUR PC AND IT SHOULD STOP RUNNING AT HIGH RPM'S.. FYI... THE FAN IS ALWAYS RUNNING

I have not known of any fans cutting off. In PC's the air flow has to be continous, otrherwise parts will burn out cause of the heat buildup. If parts burn up, you'll will have more headaches then you thought off cause of the damage it will do. If the fan is run by a thermostat it will shut off. But I have not that type of fan in PC's yet. In todays pc, the technology is changing all the time and parts being used use generate more heat. MLB

Which fan keeps running, the CPU fan, power supply fan front aux fan rear aux fan?