New PC fails to boot, due to Graphics Card. Help, please

The_tech_failure

Commendable
Apr 14, 2016
8
0
1,510
Hello, I have GTX 950 Graphics Card. When I plug in the 8 pin power, the PC just doesn't start. I plug the 8 pin connector and the other end into the power, but when I tap on the power button to turn it on, everything starts for really only a second. I mean, the LED lights flash and the usual, but it just stops after a second. Without the GC power in, everything works fine, but the display just says : please plug in PCI power. By the way, this is a new build. Please help, I am really lost and need help!