Sometimes my y-50 makes rattling

This sometimes makes clicking noise so my y50, at various times, a bit like having something to do with a fan. When my computer is running, and you can hear the fans speed up, it disappears. for now, they usually click once a second someone knows what to do? hardware or software problem? should I return it?

I actually put the computer, it was the easiest way. Thank you for trying to help though.

Tags: Lenovo Notebooks

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