Issues with first PC build

Hi all,

I recently purchased the components and began my first build. When I went to start up for the first time, the fans were spinning and the GPU LED came on, but I had no display signal to my monitor. After ensuring the monitor was on the right source for the chosen port, I tried again but still nothing. I noticed the DRAM LED was red, so I checked the memory connections to make sure they were fully seated. Even after trying with only one, in the A2 slot, I still had the same issue with no display and the lit DRAM indicator. I heard it can sometimes take a few minutes, but that did not work either. I checked all connections from the PSU to make sure they were fully connected. I checked the CPU pins and reseated it. I've also reset the CMOS but still no luck.

Any advice or things to check next would be greatly appreciated.

The motherboard is rev. 1.5

Link to the build; https://www.microcenter.com/site/content/custom-pc-builder-amd.aspx?load=ee10124e-3e4e-47bd-b0bb-39bb2d2a141a