hi, my laptop makes a noice like high frequncy when i have opened a browser(mozila.explorer chrome) and when i touch the touch pad(when l leave it stops) makes a noice(but a litle more fast like forwd mode) like the old television when they dont have good signal with white and black screen.it makes that noices with baterry loud,and with charger do it agin but if i want to hear it, ihave to place my ear near in a small deastance from the left side of laptop().The two noises a have already described, is similare but not the same.i had run test from boot menu and deap test from boot menu, but nothing. what can i do? . sometimes a message appear on the screen and say that the ac adapter is not the right.(i dont know if this is a art of the problem so i say to you). THANK YOU.
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