I had been building a new pc late yesterday and I had finnaly posted and I wanted to cable manage to finish the build. After cable management I went to turn on the power supply and what I used to make sure the computer was receiving power was check if the led on the ram went on. It did not so after check if the power suppply was the issue I took the mother board out and started experimenting on what the problem could be. I plugged a mouse into the motherboard with a cpu and ram and flipped the switch on the psu and the light on the bottom of the mouse blinked. I honestly don’t know what do anymore if anyone could help me that’d be great