New PC Won't Boot with Graphics Card Plugged In

SneakyNorthern

Reputable
Sep 9, 2014
2
0
4,510
Just got my graphics card today after building my desktop. Installed it, installed drivers and everything was going great, no problems at all. Then, out of nowhere, my desktop shut off and wouldn't turn back on. I eventually figured out if I unplugged the power cables from the graphics card, the desktop boots. If I plug them in, it doesn't boot. The BIOS is set to boot from the PCI-E slot. The graphics cards is lit up with one fan spinning while using the integrated graphics. I've switched cables and tried different slots on the PSU. What's going on? Maybe I'm just missing some setting (or I'm tired, either or. Ha.) Any help would be greatly appreciated!

Quick rundown of the specs.
NZXT H440
Sapphire R9 290X Vapor-X
Asrock z97 Extreme4
Seasonic 660W Platinum PSU
i5-4690k
Corsair h100i
8GB Avexir Core Series