Rattle Noise from Hard disc

Having a rattle sound when the hard disc is running is normal. However, if the noise is becoming noticeable over time, this could be considered not normal. The noise is coming from the disc that are rotating having a friction with the body.

During a normal condition, the friction is supposed to be minimum. Through time, the disc rotation becomes unbalance. This is usually happen for hard disc on the laptop . Due to movement, the disc could be misplace from its center of rotation a little bit. Unbalance rotation could cause more friction between the disc and the body. This can be detected with unusual rattle noise.

If this problem is not fixed, the noise could be more and more noticeable because after a time, the unbalance disc will be worse. The heavy friction could cause the body becomes very hot or even small burn. In the image on the right, you can see that the body of hard disc becomes black because of heavy friction happen for some time.

Therefore, if you experience the same problem, better back up your data before the hard disc is completely broken.

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