My motherboard powers up, but my rig won't boot!

Hello everyone! I'm new here. I signed up because i have a somewhat troubling issue. I built my computed during the whole night, following multiple video tutorial instructions. the next morning, when i woke up, I tried to turn it on for the first time, but nothing. I realised that i didn't turn on my monitor!
So i turned it on. And still the same reaction... When I turn on the PSU (seasonic 620w), my motherboard's (gigabyte z77x-ud3h) little power logo lights up, but when I hit the power button of my case (fractal design r4) nothing displays on my monitor! Please help!
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  1. Please list all the components in your build. Then please proceed to answering the following two preliminary check questions:

    1. Is the 24-pin motherboard power connector plugged in properly?
    2. Is the 8-pin CPU power connector plugged in properly?
  2. System specs please, did you load the motherboard disk drivers if on windows-7
  3. cpu:intel i5 3570k
    cpu cooler:cooler master 212 evo
    mobo:gigabyte z77x-ud3h
    ram:corsair vengeance lp 8gb 1600mhz
    hdd:wd caviar black 1tb
    gpu:msi twin frozr III 7950
    case:fractal design r4
    psu:seasonic 620w
    optical drive:asus something
    os:win7 home premium 64bit
    monitor: some lenovo monitor
  4. i also have no idea what an 8pin cpu power connector is :/
  5. i am positive that both are plugged in correctly
  6. Did you load the mobo disk? Do any fans spin? plug in a speaker any beeps?
  7. Did you plug the monitor to the GPU or motherboard?
  8. the mobo disk?
    absolutely NO fans spin.
    no bleeps :(
  9. i didn't plug the monitor to the gpu but i did to the mobo
  10. what if... my psu was defective! it's what this technique is telling me ...
  11. Remove the GPU and try again. It's really recommended to test with a very minimal configuration -- power supply, motherboard, CPU, and one DIMM of RAM. Nothing else should be hooked up. Double check to make sure. If you are not sure, then detach all components and start building it back up from scratch up to those four components. Then stop and test.
  12. nathanthe1rst said:
    i didn't plug the monitor to the gpu but i did to the mobo


    The monitor needs to be plugged into the GPU.

    or try without the GPU like the other poster said.
  13. Did it pass, Green & any black? if not it's DOA unit. Check into RMA the psu.
  14. ur6beersaway said:
    Did it pass, Green & any black? if not it's DOA unit. Check into RMA the psu.


    i don't understand?
  15. nathanthe1rst said:
    ur6beersaway said:
    Did it pass, Green & any black? if not it's DOA unit. Check into RMA the psu.


    i don't understand?

    Please try either without the GPU or with the monitor plugged into the GPU.
  16. i didn't try with the monitor plugged into the gpu, i'll update you in just a sec
  17. monitor only came with one "mobo-to-monitor" cable. do i plug that one into the gpu?
  18. What kind of input does the monitor have? VGA, DVI, HDMI etc?
  19. vga, hdmi and dvi
    credits to you all for being patient with such a noob
  20. Any of those will work fine. But VGA may need a DVI<->VGA adapter.
  21. yeah, all i got with my monitor is a vga cable, the monitor, user's guide, and power cable...
  22. Did your GPU come with a VGA to DVI converter?
  23. The GPU should have a DVI port. Connect using DVI. Most monitors also provide a DVI cable.
  24. i tried with the dvi to vga adapter on my gpu. i plugged in the monitor to the gpu, and nothing happened. also, please note i unplugged my monitor from the mobo to do that, since i had no other choice.
  25. Ok can you try plugging it into the motherboard with the GPU out of the system?
  26. sure, i'll try and keep you updated
  27. uhm, well that's weird. all the fans and LEDs went on for a 10 second interval, then off for 5 secs, then on, then off, then on, then off, then on, and then off. that's weird...
  28. Your motherboard is "shorted " against your case. Check your standoffs
  29. oh, i only put 8 out of 9 standoff screws. is that a problem?
  30. guys, if i leave 1 screw over, will it affect me?
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