PC Runs(windows boot) but no display

[KomitA90]

Could any one help me, I've following problem. Today I bought a new Cooler Master V450s PSU, replaced old Chieftec 500w(fried up). Now my PC runs, windows boot and I'm able to see and control it trough TeamViever but there is no image on the monitor. When I power on the PC it only comes up on the monitor (text:Graphic card GeForce...etc)and than nothing just black screen.

 

[popatim]

Sounds like the pc reverted to using the integrated GPU as the primary, enter the bios and tell it to initialize the pcie or peg as the primary.

 

[KomitA90]

Sounds like the pc reverted to using the integrated GPU as the primary, enter the bios and tell it to initialize the pcie or peg as the primary.

Forgot to note in my question that there is no integrated graphics at the motherboard(AS Rock P55 Extreme)