Computer sound great chassis, power supply cooling problem?

What is a good solution to it ????

you determine the power is sent to the voice of the right? CPU fan did not have the equipment Or better to look at, or are re-burned to the finish off.Clean up the problem of dust fans let my chassis as the train off the tracks when the same is called the 2 years I did not control Oh, if you do not feel comfortable listening to the more than 10 Yuan change the CPU fan should be enough to determine if the power is sent to the voice, I suggest that there should be a change.There are CPU fans, chassis fans may