Hi

I have strange problem with my G751JY laptop. Laptop very slightly vibrates around enter button.
If i put my hand down there i can feel slight vibration. It is constant and is not affected by usage.
However it occasionaly stops, but after a while starts again. It started a few days ago.
I cannot hear it, but it is distracting.

I have read that it might be fan causing it, but i want to be sure.