Graphics card not powering on

I just built a new computer with a Amd radeon hd 7750 graphics card. Everything Is powering on except for the graphics card I've checked everything an can't figure it out. Also my optical drive opens an closed real fast I don't know if that has somethin to do with it or not. Please help this is my first build.
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  1. Caliberace said:
    I just built a new computer with a Amd radeon hd 7750 graphics card. Everything Is powering on except for the graphics card I've checked everything an can't figure it out. Also my optical drive opens an closed real fast I don't know if that has somethin to do with it or not. Please help this is my first build.


    Do you have PCIe power going from your PSU to your card?
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