Tried many different connections and it doesn't respond at all. I'll just return it.All cables needed are plugged in well on the psu side? And of course motherboard/gpu side as well ....
Switch on the back is set to "on"? (I)
Nox Urano vx 750 W. I didn't use any of its cables and made sure to unplug it safely.What's the old PSU? You're not using any of the cables from the old PSU, are you?
Maybe you do have an DOA, hope the new one will work without problems.I'll just return it.