I think my radeon 6850 doesn't work in my computer

KuroOuji

Honorable
Jul 15, 2012
37
0
10,530
hey everyone
so i was building my new gaming pc and i was almost done , so i decided to try and boot the pc , but the graphic card seems like its not working probably , the fans on the graphic card are working but when i connected the hdmi cable it said no signal .. and i've tried the DVI cable too same thing happened . plz help me

my pc :
Motherboard : gigabyte GA-Z68MA-D2H-B3
CPU : intel Core i5-2320
GPU : gigabyte HD6850 1 GB GDDR5 Windforce (overclocked version)
PSU : Antec 550w
HDD : WD 1TB
Case :Antec p182
RAM : 2x4gGB Corsair Xms3 DDR3