Weird problem

[Jynweythek]

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?

 

[just_a_nobody]

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?

 

[Jynweythek]

Try removing the video card, with the 4 pin connector installed, and see what happens.

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!

 

[IronDuke]

Probably didn't seat the graphics card properly.

 

[zephead]

when I removed the 12V 4-pin connector from the mobo, it came on right away

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.