boot before bios

Hello! Yesteday I finished building my new PC. In general it works fine, but there is an issue with the booting. When I push POWER SW button, all the fans and the ARGB lights inside the PC get activated, rotating and flashing. For the next 25(+/-) second just nothing happens. The monitor's...

https://drive.google.com/file/d/1f3B20-x8m4Sl8Qh9Y9RIn-ZyafvBV3cj/view?usp=share_link - Link that kind of shows the issue. So it takes long to boot my PC and at the boot lights it is stuck on the dram one for a while, but there are white lights on top of the gpu plugs which I believe mean it is...