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What possible damage might have done to my laptop after i accidentally plug in my speaker cords to my laptops usb drive because immediately after contact with the speaker cord the laptop lost power. The speaker was powered on when i tried to hook it in my it possible that my motherboard got fried and beyond repair, or maybe just an IC got damage, please help...

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is the laptop working now (with the speakers disconnected) or not? – msw Jul 11 '10 at 12:36

You shorted the +5V rail to ground, causing the system to lose power and shut down. This should cause no lasting damage unless the machine was already having power issues to begin with.

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