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Author Topic: Doing my first build ever, Gigabyte Z77X-UD5H won't start up on the test boot.  (Read 8408 times)

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GFroun

    Topic Starter


    Greenhorn

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    Thanks for all the help guys, I went to my cousins place and used his power supply, everything worked fine, bios screen showed up, fans started spinning. Tried it with the graphics card on and 2 sticks of ram, everything worked.

    So, conclusion: Power supply was bad, I had the EVGA Supernova 650W 80 Gold Plus, I'll be buying a new power supply and update you guys once again if it works.

    DaveLembke



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    Glad you were able to test with a known good PSU to find that the PSU you got was defective. Best of luck here on with migrating it into computer case and no problems.

    Ryuk



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      We should of thought of that.  Wierd cause, there was power too it

      patio

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      • Genius
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      We did...it was suggested in the 2nd and 3rd posts.
      " Anyone who goes to a psychiatrist should have his head examined. "

      Ryuk



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        I must of missed reading that some where  :o

        Lisa_maree



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        Hi

        On the power supply there is 2* 6 pin connections one for pcie and the other is for the motherboard if you swap those you will get a short on the supply. IE the fault you have, before returning the supply check you are using the correct power supply output .

        Lisamaree 

        DaveLembke



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        Curiosity got the best of me on the statement of

        Quote
        On the power supply there is 2* 6 pin connections one for pcie and the other is for the motherboard if you swap those you will get a short on the supply.


        *This motherboard has an 8 pin, not a 6 pin that is common with video card 12v power.

        Newegg has good images of this GIGABYTE GA-Z77X-UD5H motherboard.

        http://www.newegg.com/Product/Product.aspx?Item=N82E16813128545

        I haven't seen yet where a modern design would be implemented that would allow for power to be connected wrong. Everything is keyed in modern PC's that I have ever come across to keep you from an oops smokeshow. Do you have a reference to this happening that we can see online. Just asking because I have never come across a situation like this with 2* 6pin molex being different yet. The only computer cables I have seen plugged in wrong are floppy and IDE cables if they are the older ones without the key pin. The good thing with those is that if its wrong you shut system down and turn the cable end 180 and try again and it didnt destroy anything.

        patio

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        • Genius
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        Not only that but the 6 pin connectors are keyed differently for MBoard and PCI-e...
        Only people i've seen get it wrong were overly aggressive cause it takes a good amount of force to put 3 square ports into round holes.
        " Anyone who goes to a psychiatrist should have his head examined. "

        Computer_Commando



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        See Reply #15 from OP, i.e. bad PSU.

        patio

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        I saw it when it was posted.
        " Anyone who goes to a psychiatrist should have his head examined. "

        Computer_Commando



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        I should have directed reply to DaveL

        DaveLembke



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        I too saw it when it was posted. It was the PSU as I initially thought, which was proven on 4/13 when GFroun followed my suggestion to try a different PSU.

         Was just replying to lisa_maree here about the 2* 6pin molex. And fact that this mobo has a 8pin 12v molex connection.