No display, possibly booting?

[pognik533]

I have just built my new gaming pc and after checking all my cables were all in place and connected I had plugged it in and powered on, I was met with no display( I did plug my hdmi cable into my gpu) but I had seen LEDS on my mobo light up, it ran through orange first then red and then stuck on white followed by a green light after a couple seconds. I have tried reseating the gpu, I tried a different gpu and had the same result. I am also no using the plug that came with my psu because it was a 2 prong plug and I need a 3 prong plug so I used a plug that came with a different psu. Another thing to add is that approximately 2-3 seconds after booting I hear a click from my psu, idk if this is normal or it’s my psu that has a problem. Here are my specs

Mobo: asus rog strix b550-f gaming 

cpu: r7 5800x

gpu: rtx 2070 super gigabyte windforce

ram: 16gb ddr4 3200mhz Corsair vengeance

case: nzxt h5 flow

cpu cooler: hyper 212 halo black 

psu: Corsair rm750x

 

 

update: I was able to post by reseating the cpu and using a different gpu but can’t get into bios with my gpu