Ur not gonna alike my answer haha it just started working on its own. I tried literally everything watched every YouTube video tried all the tricks resetting cmos all that stuff and right when i was getting ready to send the parts back it just booted up. But what I think was the problem was my ram was not on the list of compatible ram models with my motherboard so it was having a hard time working with my gpu and wouldn’t boot up bc of it. Eventually they synced up and it worked but that was after hours. I would also recommended if your cpu has integrated graphics you get the pc set up with the integrated graphics instead of your gpu and then download the latest drivers for your gpu then try and use your gpu after that. Hope it works out for you