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I have a radeon hd 7770 graphics card and a amd athlon II 750k 3.4 ghz and I can't figure out which one isn't working. It took

Radeon HD 7770 compatibility with amd athlon II 750k
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  1. Best answer
    Explain more. Try the GPU in another system. If you don't have another system your best bet is to RMA it as defective. CPUs are almost never the issue.

    You are plugging your monitor into the right port, right? The one from your gpu.
  2. Be more specific. Could you tell us your system hardware?

    Remember that you're using a dedicated GPU, so you have to plug your monitor there, not in the motherboard.

    Saludos desde México.
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