PC Powers up but no display. Power button turns on but won't turn off. Reset button won't work either

My PC powers up, (no beeps) however 2 different monitors show no display. In fear of a fried MoBo, I went out and purchased a new processor, AMD fX8350, new MoBo Asus Sabertooth 990fx, new DDR3 Patriot RAM, and new graphics card, Asus GEForce GT640. After installing all, my problem still persists. I am now thinking it might be a power supply issue, however my thermaltake 600w is only 4mo old. This is very perplexing to me. Please help.
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  1. Best answer
    Go through Tom's checklist -

    Double check you connected BOTH the power supply connectors to the motherboard.
  2. Omg. I'm a dunce. Thank you
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