Will the motherboard power a PSU without having a CPU in the socket.

[AgentSanity]

So recently I've been building a computer. So far I have the case, the motherboard and the PSU. I have tested the PSU with the paperclip method and it works, but when I plug it in the the main motherboard power it doesn't power it. Is it because I don't have a CPU yet, or is my motherboard dead?

 

[ldewitt]

It will not power on without CPU or RAM.