New graphics card problem

I just bought a new GTS450 graphics card and is PCI-Express x16 2.0. My motherboard is a asus a8000 that has a PCI-Express x16 slot. I'm not quite sure if it is 1.0 or 1.1. The card fits, but when I turn the computer on I get no singal from my monitor. I've tried all three ports (HDMI, DVI and D-Sub) on two monitors and I still got no signal. The computer sounds like it fully running. I've been reading everywhere that the PCI-Express x16 2.0 is fully backwards compatible with motherboards that are PCI-Express x16 1.1 but not 1.0. Is this true and is there a way to know which slot I have on my motherboard?
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  1. Did you connect the 6-pin power plug to the card?
    Only 2.1 cards are known to have problems with 1.0 mobo's.You should have no problem.
    Do you have another graphics card to try out to see if it's the 450 that might be defective?
  2. Yeah the 6-pin connector was plugged into the card. I currently have a 7800GT which works fine. Should I try and delete my current driver before installing the in card?
  3. So you tryed the other card and it works but not the 450?
    Might be the card,could be deffectice.But lets get some more opinions on this just to be sure...
    Yea go ahead and delete the old drivers and the new ones for the 450 then reinstall the 450 drivers.
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