Answer:
i. Damage of Power adapters that are supplying power from the switch to the computer.
ii. Damage/ Failure of power supply inside the computer.
Explanation:
There could be many possible reasons that computer is not working or power up while pressing power button. Two of them are discussed here.
i. If the power adapters or cords are damaged than computer will not switched on or display or sound any thing on the computer. As power is not reached to computer with the help of cords. In that case just check that, power cords are perfectly installed in computer and power plugs and that are not damaged.
ii. In case computer power supply is damaged then the computer system will not switched on any nothing will be displayed on the screen. The power supply should be replaced.
iii. In case of memory failure the computer will not start.
iv. In case there is power supply to processor fan damaged than computer will not switched on.
The possible reasons for not seeing or hearing anything is that:
When a person does not have any response when they press the power button, it is better to see an engineer or check the motherboard to know if it is receiving power.
Conclusively, When it is getting power supply, then the problem may be with the system hardware connector or others.
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