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Computer Power Lights are on but Nothing Else is Working

I have a custom PC that is fairly new, most of the components were bought in April, the graphics card last month, and it has worked just fine up to this point.
I was in the process of putting a lot of old CDs onto iTunes and I had an old laptop CD/DVD drive laying around so I decided to hook it up so I could do two CDs at once. I figured out that the power connecter was the wrong size so it never ended getting hooked up. After putting all of the panels back onto my case, I tried to boot up the computer again. The power lights on the case and on the motherboard lit up as well as some other leds on the motherboard. The two hard drives and the original CD drive started up as well. That is where it ended.
Nothing else powered on, not the fans, not the graphics card, nothing. The only thing on was the PSU, the lights on the case and motherboard as indicated before and the hard drives and CD drives.
I have no idea what is wrong. I have spent a pretty good couple of hours trying to find solutions online but to no avail.
Please also keep in mind that the computer was working perfectly before I had tried to install the laptop CD drive.
Thank you in advance.
4 answers Last reply Best Answer
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  1. If anyone has even the slightest idea of what might be wrong, please, tell me or ask me questions if you need more info. I really need to figure out what is wrong.
    Thanks again in advance.
  2. Best answer
    All you PSU cables are still plugged into your mobo right? Your 24 pin cable, is it in?
  3. Hmm, something must have been loose, I checked all of the psu connections, unplugged and replugged everything in and it works now. No idea which connection was loose but its fixed now. I thought that I had done that before but I guess I had missed something.
    Thank you.
  4. Tuber1 said:
    Hmm, something must have been loose, I checked all of the psu connections, unplugged and replugged everything in and it works now. No idea which connection was loose but its fixed now. I thought that I had done that before but I guess I had missed something.
    Thank you.


    Glad I could help
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