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My Aluminium chassi is electrified!

When I have my Macbook Pro connected to the charger, the chassi become electrified. I do not know how many volts och amperes there is, probably not many. But when you drag the fingers over the computer, you get a humming feeling in your fingers. When standing on a chair, the humming becomes less. If standing bare foot on the floor you feel it very clearly, and if you holding something that is earthed at the same time as you touch the computer, it will hum so much in the fingers, that it hurts.

How can I fix or repair this problem?

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It turns on and runs?

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This is a known issue

use the grounded AC extension cord not the two prong "short" AC adaptor.

If this answer was helpful please remember to mark it accepted.

Good Luck,

N

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Thanks for pointing this out +

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Well, it looks like you might have a problem with your charger then, because normally it will only put out something like 25V, and 2A. That shouldn't be powerful enough to give you a tingleing feeling in your fingers. You might want to make sure that the DC-in board is properlly grounded, and is not shorting out anywhere in the case.

Note: since I'm not completelly sure what model MBP you have i linked you to the part/guide of a 15" A1226. If you tell me the model number of the computer, i can find the right guide.

MacBook Pro 15" (Model A1226) Left I/O Board张图片

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MacBook Pro 15" (Model A1226) Left I/O Board

$99.99

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Yes, it turns on and run perfectly, and the battery is charging normally.

I have tried ungrounded and grounded AC-plug, but no differens. A friend has the same problem, he has a smaller computer 13" or 15", I have the 17" model.

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I have the three prong plug and the laptop is still electrified. The only remedy I have found is to remove the battery and just run on the cord.

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