TechSpot

Weird problem

By Jynweythek
Jul 17, 2005
  1. I was building a new PC last night, and I have stumbled upon a problem. I had everything hooked up, but the computer just wouldn't turn on. So the strange part was when I removed the 12V 4-pin connector from the mobo, it came on right away, but I wouldn't receive a video signal, it seems that the video card isn't even running (I can't really tell). Mouse and keyboard aren't on either. Anny idea what it might be?
     
  2. just_a_nobody

    just_a_nobody TS Rookie Posts: 205

    The 4 pin connector supplies power to your video card. Try removing the video card, with the 4 pin connector installed, and see what happens. If you have another, known good, power supply, I would try that, otherwise you have a bad MOBO, or the 4 pin connector is not making good contact. When you say, you had everything hooked up, and it wouldn't start, are you saying no fans were spinning, no indicator lights, nothing?
     
  3. Jynweythek

    Jynweythek TS Rookie Topic Starter

    Hmm... I did that and it worked. Then I put the video card back and left the 4 pin connected and it worked this time. I don't understand why it wouldn't do it before.

    Well, anyways, thanks for you help!
     
  4. IronDuke

    IronDuke TS Rookie Posts: 1,267

    Probably didn't seat the graphics card properly.
     
  5. zephead

    zephead TechSpot Paladin Posts: 2,483

    doing this to a motherboard damages it, and you may have already toasted the system. never boot a computer without all the motherboard and video card power connectors in place.
     
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