Storm and lights dimming - pc still on

[sewerino26]

Hello. I have an question. There was a storm in my country yesterday. Power was on . But there was random 1 second lights dimming in my house. was still on, and was still on. So why both computers was on and wont turns off when lights was dimming? Thanks. And is this harmful to pc?
How can i check that nothing damage in my pc?
Ah i dont have UPS.

Psu is Corsair 750RM and MB: Asus Z170-P

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[sewerino26]

So how can i be sure that nothing wrong with my pc? ( Pc not turned off during storm, laptop not turned off, and laptop is without battery )


There was only light flickering in house at random moments for 1 second,