PC won't reboot unless motherboard disconnected and reconnected from PSU

[PeterRojas]

I built a new PC this past weekend, and it runs perfectly when it boots up (I'm posting this from it).

But when I shut it down I am not able to boot it up again without opening up the case, disconnecting the power cable from the PSU to the motherboard and then reconnecting it. After that everything boots up just fine.

I can restart the computer without encountering this issue, but if I shut it down or let it go to sleep I have to go through this process if I want to boot it up again.

Could this be the PSU? I put in a brand new EVGA 850 G2 with the new build.

 

[superninja12]

another way to do this is plug out the power short from the socket, hold down the power button for 10s, than replugging in the chord.

i don't know who to solve ur case tho.