computer cannot detect graphics card

I have recently installed a new graphics card : the xfx amd radeon hd 7870 and it seems to work as the fans are running and it is connected to the motherboard. The installation disk allows me to install drivers but my computer cannot detect the graphics card and neither can amd cataylst. Any solutions?
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More about computer detect graphics card
  1. Make sure the display cord connected to the GPU and not to the motherboards display output. Also, go into bios and make sure that video output is set to pci xpress x16 and not to onboard
  2. Do not use the drivers from the installation disc. Go to the amd web site and download the current drivers and ccc.

    Do a complete uninstall of the amd drivers and ccc that you installed from the disc. Also use driver sweeper or ccleaner to get rid of any cruft left over from the disc installation.

    Once your system is clean, install the downloaded driver/ccc. Be sure the card is seated property and that the two 6 pin PEG's are plugged into your card.

    Mark
  3. markwp said:
    Do not use the drivers from the installation disc. Go to the amd web site and download the current drivers and ccc.

    Do a complete uninstall of the amd drivers and ccc that you installed from the disc. Also use driver sweeper or ccleaner to get rid of any cruft left over from the disc installation.

    Once your system is clean, install the downloaded driver/ccc. Be sure the card is seated property and that the two 6 pin PEG's are plugged into your card.

    Mark


    Hi,thank you very much,I have disabled internal graphics but now when I turn on the computer there is no display and and the POST makes a strange beeping sequence( not normally )
  4. haider95 said:
    Make sure the display cord connected to the GPU and not to the motherboards display output. Also, go into bios and make sure that video output is set to pci xpress x16 and not to onboard


    Where do you find the video output in the bios all I can find is internal graphics?
  5. alexaustin1234 said:
    haider95 said:
    Make sure the display cord connected to the GPU and not to the motherboards display output. Also, go into bios and make sure that video output is set to pci xpress x16 and not to onboard


    Where do you find the video output in the bios all I can find is internal graphics?


    http://www.wikihow.com/Disable-the-Onboard-Graphics-and-Install-a-New-Graphics-Card-in-Your-HP-Pavilion-6630 Try this
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