My computer P03-630-uw91 is not powering on. How do I know what is wrong?

I bought my son an Acer Predator Orion 3000 11th gen model number P03-630-uw91 on Dec 2021. Today he went to power it on and there was nothing. No lights or sounds. We checked the 500w power supply that came with it which seemed fine but went ahead and bought a new 700w power supply for it. After installing it and checking all connections we still got no power at all. Could it be the motherboard that needs to replaced? We haven’t had the computer a year yet and the warranty just expired. Any ideas or comments would be greatly appreciated. I can’t afford to take it somewhere.

[Edited the thread to add model name and issue detail]

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wascas

Looks like it is an electronic problem that should only be investigated by a technical specialist.

You can contact Acer support for your country.

https://www.acer.com/worldwide

billsey

Yes, you should still be in warranty for at least another month. Likely it's something simple like a bad power switch rather than the supply itself. Start a repair ticket with Acer support and let them get it fixed for you.