TLDR warning ⚠️ this is the first time I’ve posted tbh but I really need help. I’m building a pc with my dad and we put everything together outside the pc to pretest the system. We installed the cpu, dram, cpu fan, gpu and connected all the power cables. Turned it on and nothing popped up on my monitor and the leds to signal what’s wrong start on red (cpu) and then blink to orange (dram) and then blink back to red for a few seconds and then just repeats. We tried different dram slots we tried updating the bios but for some reason the usb ports also don’t work there’s no power when we plug in a keyboard but there’s power when we connected the usb for the bios and when I plugged in a usb splitter for more ports. I’ve read so many forums and other people asking questions and we can’t figure it out at all. I also tried taking it all apart and rebuilding it that didn’t work. I checked the compatibility with the mobo and the cpu and the mobo and the ram and it’s all good so I don’t know what the issue is.

https://pcpartpicker.com/list/6Dk9mr for the specs