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The good news is these vintage Macs has a separate board that interfaced with the MagSafe before sending power to the logic board. This is moot because you should be getting a new one anyway
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charger may fail meaning you can no longer charge and you have to buy a new one.When components get hot, it’s because something failed and now too much current is flowing through something.Īs bad as this sounds, your potential damage is limited. There’s a small IC in that adapter that communicates with the Mac to identify it as having whatever wattage your charger is rated at. I would recommend getting a new charger to minimize damage and/or down time. Those are definitely the “high voltage” pins, if you consider 18V DC “high voltage.”
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