No fans spin

PC Won’t boot and EZ indicator lights don’t come on New PC won’t turn on after RMAing half the parts I first tried to assemble this pc about a month ago now and I haven’t been able to get it to turn on once. I’ve sent it to the local pc repair place twice now and I’ve had the mobo and cpu...

I've tested using a GTX 1050 Ti and it works perfectly fine. However, when I installed this 3070 Ti, the monitor kept displaying "no signal" and the fans don't spin. I also can't detect the device in device manager, and Nvidia software can't pick up this card when attempting to download drivers...

So last night my PC worked just fine, played some games and then decided to go to bed. In the morning my PC refused to turn on, no fans no lights nothing.. Other than the red light on my pc case that is.. Please help me indicate what this means and possibly how to fix the problem. Thanks...