Question PC not booting (red boot light)

[KKun]

My PC worked just fine earlier today (some hours 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 span of some hours. 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. I did all the things I could find on google like CMOS reset, POST thing, reconnecting everything and nothing helped.

Specs:
i7-9700k
Nvidia GeForce 3060ti
16gb Ram
Gigabyte Z390 Gaming X
Thermaltake TR2 S 700W

 

[jay32267]

I'd be leaning on the PSU especially if that model is a TR2 Bronze which is.....

Tier D • Recommended only for very cheap, iGPU systems .

Also the PSU is 50 watts below what NVidia recommends.

 

[KKun]

I'd be leaning on the PSU especially if that model is a TR2 Bronze which is.....

Tier D • Recommended only for very cheap, iGPU systems .

Also the PSU is 50 watts below what NVidia recommends.

Even though it worked for nearly 2 months perfectly with it and I tried to boot it without a GPU and it still didnt work?