noisy Macbook - locating the source of the noise
Since my Macbook Air fell onto the floor, it has become somehow noisy.
I just can't locate the source of that noise. It's either the Harddisk or the CPU-fan. But how can I actually find out. I opened the Notebook, and tried to listen closely, but still can't tell, which of the two components it could be.
So my question is: Is there any way I can turn off one of the two for some seconds. Turning off the Harddisk for some seconds, while the notebook is running, so that I can see if the noise will disappear? Or vice versa turning off the fan...
Any ideas how to do one of those two things?
Thanks in advance.