make sure your computer is unplugged and remove the fan from inside, and thoroughly clean it. this will "lessen" or remove the windy noise.
When they don't feel like making noise and at night.
Because without power, the hard drive, the fan, they make noise when they have power. Without it, they all stop making the computer go "quiet."
Check your AOL messenger settings. That's the sound of a buddy signing in or out.
Lubricate.
The only reason your mac would make noise is if it is cleaning its self. If you first get a mac it might clean its-self more often. Once the mac is comfortable in its new home it will stop making the noise. I work at the apple store, and I can a sure you that your computer is fine. Remember to stay calm because all macs do make the sound, it is completely normal, and your mac will eventually stop making the noise, once it is use to it place.
Your chirping smoke alarm is making noise because it is indicating a low battery or a malfunction. To stop the noise, you can replace the battery or reset the alarm according to the manufacturer's instructions.
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Ensure the cable is plugged in correctly
Unplug it.
Bleeding the air from them usually helps.
either replace them or add motor honey to go for a longer perion without noise....