I suspect whether its the card's problem or our G5's problem. This is my story:
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I just purchased a X800 XT AGP video card for my G5 Dual 2G, which is currently using a ATI 9600 Pro.
The problem is, when I plug this card in, the system won't boot. I can hear the startup chim but the screen just remains dark and I don't even get to the gray screen.
I tried zapping the PRAM, and the problem is still the same. Won't even boot in safe mode when I keep the shift key pressed down.
The machine works well when I put back in the 9600 Pro.
The card probably isn't a lemon as the seller brought 5 of those to my place and all of them have the same problem (he claimed that all of the cards work at his office and he tested them all).
I have already installed the latest drivers etc downloaded from the ATI website.
Anyone has any idea as to how to fix it?