Asrock x48 twin turbo video problems

[Guest]

Hello,
I have an asrock x48 twin turbo and Radeon hd 5770 for video, I can't get video signal.
can you help?

 

[shortstuff_mt]

What are the complete system specs? Is this an old build that you upgraded the graphics card on, or is a new build? The first step is to perform EVERY step in the READ before posting about boot problems! sticky at the top of the forum. It was created to troubleshoot boot problems including "no video" issues.