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Computer grounds are either negative or positive grounds. Usually, there is an electronic diagramed indicator near the charging plug-in point. I should think most of them are negative ground. You have to go by the schematic designation. If you don't know or don't have a schematic, call the mfg maker and ask them for your particular model whether it is negitive ground or positive ground. (Caution:You do not want to reverse these grounds). Either way, if you do reverse them, you will have melt down instantly.

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13y ago

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