XPS 720 and 4870x2 graphocs card issue

[hairybum]

Hi, I am trying to replace my 8800 gtx with a 4870x2 card but when i put the new card in my machine I get no picture? The card works fine in other machine, any ideas?

 

[chef7734]

Do you get the post screen displayed? Do you have all power connectors connected? Any beeps?

 

[shadow187]

You connecting the DVI port successfully..?

 

[hairybum]

I get no post beeps and no bios screen, very strange, when i put my 8800 gtx back in it is fine. Cables are all connected correctly.

 

[Thai3000]

Hi, have you solved this problem with 4870x2 and xps720? I have the same setup and the same problem! Please reply so I can learn from. Thanks