Need help with new gpu

[Celvir]

Bought a new gpu and dont know if it is doa or not

 

[RooSalad]

Does your computer boot properly without the GPU installed?

 

[Celvir]

Yeah, it still boots wether i plug the hdmi into the graphics card or the onboard

 

[Celvir]

APU: AMD 6400k
GPU: Sapphire R9 280x Dual x
Ram: 8GB Kingston
MOBO: GIGABYTE GA-F2A88XM-HD3
PSU: Voltek 475 Watt
Windows 7 64 bit