Things You'll Need
Instructions
Power the intercooler off and remove the power cord.
Remove the intercooler from the Xbox 360 console.
Flip the intercooler over so that its input fans (the side that comes into contact with the console) are facing you.
Blow out any dust with the can of compressed air. Use an air straw to reach tiny crevices.
Reattach the intercooler to the Xbox 360 console and plug it back in. It should be much quieter once powered on. If not, you will need to contact Nyko customer support as the screeching may be a manufacturing issue.