I just built my first pc, but when I start it doesn't give me any signals on the screen (it keeps saying "no signal"). I don't know where the problem could be. I think I've set all the cables correctly and every part should be in the right place. I tried to clean ram sticks and placed them in other positions and I've cleared CMOS too.
My components are:
-amd itx radeon Rx 6400
-corsair vengeance lpx ddr4(2x8 GB)
-wd Blue SN570 (500 GB)
-asus prime b550m-k
-amd ryzen 5 5500
-600 w Gold evga