No signal

[Androidinvasion]

I have hooked up my amd ati Radeon hd graphics card I have disable the integrated graphics card but when I plug the graphics card in and turn on the computer I get no signal can anybody help me?

 

[Despoiler]

I have hooked up my amd ati Radeon hd graphics card I have disable the integrated graphics card but when I plug the graphics card in and turn on the computer I get no signal can anybody help me?

Did you switch the display cable from the motherboard port to a port on the graphics card?