Recently one of the fans in my laptop is "grinding" usually within one minute of booting. There are three fans: the grinding one (the largest), a smaller one next to it, and a tiny fan positioned next to a heatsink.
At first we thought it was the hard drive making this awful noise :surprised:twisted:, but removed the bottom plate and were relieved to find it was this fan.
It sounds like: something is loose and causing this problem, the fan has become inbalanced in its mechanism and will not operate correctly now, or perhaps something is lodged in it.
Dust, ash could not cause such a problem could it? I am a programmer and do not know much about hardware.
Thank-you for any help in advance.