Question PC not booting suddenly

[KKun]

My PC worked just fine earlier today (3h ago) but now I can't see anything on my monitor anymore when I turn my PC on. First it was only one monitor not working out of two and then I tried to restart my pc and now both arent working. I don't think that both of them broke suddenly in a Everything starts up (Fans spinning, LEDs shining...) but still nothing on my screen. The boot light on my Gigabyte motherboard is glowing red when I start it.

Specs:
i7-9700k
Nvidia GeForce 3070ti
16gb Ram
Gigabyte Z390 Gaming X

 

[rgd1101]

brand and model of the psu?

 

[KKun]

brand and model of the psu?

Thermaltake TR2 S - 700W