Hello @Bazz and welcome @Bazz schrieb: My problem: I connected an external CD to the USB 3 port that I (wrongly) powered with a 12v and the laptop stopped working immediately. I can't even imagine the constellation of connecting an external CD drive to a USB port. Can you please post a photo of it here where you can see where which cable is connected? and how do you come to the conclusion that the 12volt is connected incorrectly. bye Fishtown
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