New computer problem

Hello,
I just finished my build and am having problems. I'll get straight to it;

Intel i-7
Evga 660 ti ftw
550w corsair
CM case with led fans
AS rock Z77 extreme mb
Wireless card
Rosewill 92mm cooling fan

Problem is that when I started it, with windows 8 btw, windows logo would pop up but then would go to a black screen and just sit there. Also motherboard code lights wouldn't stay on, nor would the case lights come on. Sounds like a psu problem, however, I switched graphics card with roomie (550 ti) which supposedly uses more juice and it booted and I was able to log in just fine. Any ideas what is happening?

Any response would be greatly appreciated.
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  1. So you swapped out the graphics card and it worked? I'm pretty sure there's your answer. Did you try the GTX 660 Ti in a different PC?
  2. Btw, the GTX 660 Ti uses more power than the 550 Ti:
    http://www.hwcompare.com/13157/geforce-gtx-550-ti-vs-geforce-gtx-660-ti/
  3. rene13cross said:
    So you swapped out the graphics card and it worked? I'm pretty sure there's your answer. Did you try the GTX 660 Ti in a different PC?


    Suppose I forgot to mention that part, yes, he put it in his computer and it worked fine.
  4. rene13cross said:
    Btw, the GTX 660 Ti uses more power than the 550 Ti:
    http://www.hwcompare.com/13157/geforce-gtx-550-ti-vs-geforce-gtx-660-ti/


    That might be the best news I've heard yet. He SAID he looked it up and the 550 used more power. This might be a simple problem of my own ignorance then...
  5. Do you think it IS the psu then?
  6. A 550W Corsair PSU should be more than enough, really. What specific PSU from Corsair is it? If it's a proper quality you could probably run 2 GTX 660 TIs on that (not that I would recommend it).

    It could also be a Windows 8 thing. Is it possible for you to try Windows 7?
  7. rene13cross said:
    A 550W Corsair PSU should be more than enough, really. What specific PSU from Corsair is it? If it's a proper quality you could probably run 2 GTX 660 TIs on that (not that I would recommend it).

    It could also be a Windows 8 thing. Is it possible for you to try Windows 7?


    I do not have a copy, but my roomate does. I could try it and see if it works. Would my data get erased if I were to install it? And I'm assuming I'd just turn off auto updates and be ok for the test, right?

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139020

    Scratch that, it's a 650w. Ugh. That doesn't make any sense to me.
  8. bpmcd9 said:
    I do not have a copy, but my roomate does. I could try it and see if it works. Would my data get erased if I were to install it? And I'm assuming I'd just turn off auto updates and be ok for the test, right?

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139020

    Scratch that, it's a 650w. Ugh. That doesn't make any sense to me.

    Woah, yeah, that PSU is nearly overkill for your system lol

    But do give Windows 7 a try. You don't even need to activate it. Just install it (you can create a separate partition on your HDD for Win 7 but backup your needed files anyways, just in case) and make sure to install the latest Nvidia driver. See if you can run a 3D application (such as a game) properly. If you can, then you know it's a Windows 8 issue.
  9. rene13cross said:
    Woah, yeah, that PSU is nearly overkill for your system lol

    But do give Windows 7 a try. You don't even need to activate it. Just install it (you can create a separate partition on your HDD for Win 7 but backup your needed files anyways, just in case) and make sure to install the latest Nvidia driver. See if you can run a 3D application (such as a game) properly. If you can, then you know it's a Windows 8 issue.


    Ugh. Damnit. There goes my weekend. Alright, I'll give it a try. I'll get back to you and let you know how it goes. Thanks for the help!
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