Hi! I have this laptop for about a month and until now everything worked well.
Today I had some work to to with it so I used it on battery a little and I've noticed that a sound was coming from the fan hole (something between a beep and buzzing). I shut it down a few times and it was still happening (the sound isn't continuous by the way: it buzzes for some seconds then stops for some minutes then starts again).
I took out the battery, plugged it in and no sound whatsoever. When I put the battery back and turned it on the buzzing was back but it stopped when the battery charged to 100%
Now I only hear it for like 2 minutes when I turn it on then it stops. Is it something normal or should I worry about it?

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