Question about HP Compaq Evo Notebook N600c
It sounds as though you may have either blown the power supply, or burned the power circuit on the motherboard. That buzzing sound usually indicates an electric arc, where electricity passes through open air from one contact to another; In this case, it was probably caused by a loose or broken solder connection on the laptop's power jack.
If you can get your hands on an identical or equivalent power supply, test it with your laptop. If it works, then the power supply just needs to be replaced.
If not, try taking the battery out of your laptop, and plugging it in again. Sometimes, when a power supply burns up, the battery will discharge, rendering it inoperable.
Hope this helps!
Posted on Jun 13, 2008
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Posted on Jan 02, 2017
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