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General discussion

No power Dell C640

Jul 1, 2009 12:25PM PDT

Laptop will function with battery but will not work with power supply and battery will not charge up from power supply

Discussion is locked

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Sadly.
Jul 1, 2009 1:02PM PDT

A bad motherboard could explain all the symptoms. Another mainboard would have a good power jack and battery charging circuit. Be sure to replace the battery if it's over a few years old while you are there.
Bob

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Inverter
Jul 1, 2009 11:15PM PDT

Assume that the inverter is functional, that you have checked to see if it is putting out the required dc voltage to the system.