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Jackie ManFlag for Hong Kong

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Can a malfunctioning motherboard burn a power adapter?

I have a second hand SONY VAIO Series E notebook with Windows 10.

Last night, I ran it on battery and at 5% battery it shut down on its own  (not hibernate)with a little pop sound.

I immediately attached the original power charger and there was no charging.

My first guess was that either the motherboard or the power adapter gone south as there was no green light on power adapter and no charging light on notebook.

I opened up the three pin in the socket of the power adapter and saw there was a 3A fuse itself.  I replaced the 3A fuse with a 5A fuse and there was green light on power adapter. However, when I attached the power adapter to the notebook, the green light turned off within 15 seconds and I can confirm that the power adapter is dead now from the smell.

The good news is the notebook can be powered on after 15 seconds of "charging".

I have forgotten all my lessons in electronic circuit.

Is my motherboard having a problem? Will it burn another power adapter?

Why changing the fuse will burn the power adapter?
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dbrunton
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@dbrunton

Thanks for your quick reply.

How long can a power adapter last for normal use?
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Thanks all for your valuable feedback.

How long will the power adapter last for?
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Ramin

A power adapter can last for very long time if you take care of it.
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Update

The notebook can be powered on without the battery overnight.

Will wait for the arrival of new battery to test whether it is a motherboard problem.
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Good suggestions. Thanks!
Thanks,
Update:

Old battery still working on charging and discharging.

The problem should be on one shocket of the power bar.