First make sure all connections are properly made. If so then take it all back apart and look for signs of thermal paste in places it should not be. Clean everything with small amounts of 80%+ Isopropyl alcohol and a lint free rag. Use a pea sized amount of thermal paste in the center of you CPU and about half that on your GPU.
Also the "paperclip" test is not a 100% definite say so that a PSU is good and diablotek is a notoriously bad brand prone to failure. Just something to consider.