Well it finally works, again few questions.
My pc slower now for some reason(i think), also i could connect the big blue wire for video only to motherboard is that right? (cant install video drivers because it doesn't recognize my card, because big blue wire is plugged in to motherboard?)
And do i have to plug in both cables for my motherboard to PSU? there is ~20 pin and ~10?pin i tried only with ~20 first and my pc didnt start.
Right now i connected them both, i don't know if it should be like that.
After every PC restart video card fans go crazy(and stay that way) or just spins slow..
Edit: also there's no sound
Idk if i should install new drivers or something..
Edit2: yep i had to install audio codecs/drivers again, i don't know if it's because i changed my case or that i used that DDU program..