Having trouble to switch on my laptop. [Closed]

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Hello,

I'm using sony laptop and i can't switch it on although i've already follow all the tips given. It does switch on for a moment, and it shows the choices to choose whether to using safe mode, etc. But, once i want to enter the password, the window goes blank, and died. However, the fan still working when i push on the switch button. Is it the motherboard?