Chirp sound coming from left top side?
My 15" MacBook Pro "chirps" occasionally - no set pattern - with the noise coming from the top left side of the computer, near where the magnetic power cord plugs in. It's not speaker-related but sounds like something going on with the inner workings of the laptop. The noise is just loud enough and frequent enough to be annoying in a quiet environment.
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Hi Owen, thank you very much for your advice. It does make lots of sense to me. At the beginning I thought it was a sound made by the fan, but I installed iStat Menus and I have been checking the speed of the fans and they are normally around 1000rpm. So I'll definitely check for a power board.
- de Oriel