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I just replaced my old video card in a Dell Dimension 9200 desktop. I've placed the video card tightly in the motherboard and have connected the fan as well on top of the video card.

Now when I turn on my computer (Ubuntu 11.04) at the BIOS screen it asks me to press Ctrl+I to configure. However, when I do this the BIOS configuration comes for about 2 seconds but after that the screen goes blank and I get a message

No Signal input Check Video Cable

What could I be doing wrong here?

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Maybe graphics card doesn't get enough power? – Anton Barkovsky Jun 25 '11 at 16:48
so could it be my power supply for the computer? – josh Jun 25 '11 at 16:56
Yes, it could be the power supply, or the video card could be defective, or possibly incompatible. Does the card have multiple outputs (ie vga and dvi) and did you try both of them? – MaQleod Jun 25 '11 at 17:04
Note that graphics cards often have auxiliary power jack (though mine card worked relatively fine with it unplugged). – Anton Barkovsky Jun 25 '11 at 17:08
Yes, the card has both VGA and DVI. in VGA the screen lasts a bit longer but in dvi its half the time than VGA. I am suspecting it could be power supply because before I replaced the video card my monitor just went blank (on old video card). so problem could really have been the power supply? – josh Jun 25 '11 at 17:33

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