New build turns on and fans spin but no post noise or video signal

Im helping a friend build a computer for Christmas. All parts are suppose to be compatible. When we went to boot all fans started running and it sounded like a normal computer boot but no video displayed on the monitor. I tried reseating the graphics card, swapping graphics cards, reseating and switching out the ram and no luck at all. Also his graphics card fans didnt turn on but my much less power hungry card seemed to be running fine. Not sure whats going on, Im thinking its the motherboard or psu.

I will grab the list of his parts in my next post
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More about build turns fans spin post noise video signal
  1. Best answer
    if his pc has onboard video see if the mb will post from that with one ram stick. then check that he running the newest bios file on the motherboard.
  2. Forgot to plug in cpu power cord... Rookie mistake lmao!
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