Recently changed mobo and cpu. I5 4460 with a Asus z87 k mobo. 8gb ram single stick installed, no bios detection or display detection. R9 380 as gfx card but tried with on board and also graphics card plugged no dofference. Green light on mobo and you can and case fan and gpu fan spinning. Psu was almost new and ram my old amd fx setup fine, have no idea what the problem can be. Checked all connection, they are in securely and double checked everything is plugged in. Tried clearing cmos with battery pull, still nothing. Any suggestions?