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Fanfold Paper
Posts: 12
Registered: ‎11-21-2016
Location: US
Views: 321
Message 1 of 1

Lenovo x200 hissing sound in the laptop near the mains socket when charging battery

Hi All


There is a strange, worrying sound while charging the laptop. It resembles what you could hear during zx spectrum fm radio transmissions of games and stuff in the old dayss. 

Sometimes, it helps to turn the mains plug around a bit but it gets very loud occasionally and does not go. 


What to do about it? 

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