Question about HP Compaq nx7400 Notebook
Remove the battery from the portable and disconnect the Ac adapter. Press and Hold down the power button for 15 seconds.
Reconnect the Ac adapter only and power on the system. If the system is doing the same . The motherboard on the computer has gone bad.
You can read more on the same on the link below
HP support forum
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Posted on Oct 04, 2010
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Posted on Jan 02, 2017
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