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Finished building my computer, but the computer isnt booting up

Last response: in Systems
August 12, 2012 2:04:13 AM

I have just finished building my computer. The computer isnt booting up. I have tried pressing the power button. When I plug the computer in, the ledon the motherboard lights up, but if I press the power button, nothing happens.
August 12, 2012 2:10:52 AM


did you plug in the power connector in properly? its easy to misplace the the small pins
August 12, 2012 2:16:07 AM

yeah it looks like everthing is plugged in correctly. By the way, when I pressed the power button the first time, the fans started spinning for a mili second, but then it stopped.
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August 12, 2012 2:19:49 AM

oh and If I unplug the little pins, then plug them back in, then when I press the power button, the fans start up again but then stop after half a second.
August 12, 2012 2:47:00 AM

okay, so I was messing around with the wires, then I got the computer to boot up! but when I tried to but the back panel on, the computer turned off, and I cant seem to get it to turn on.
August 12, 2012 12:21:25 PM

what back panel?
August 12, 2012 1:52:34 PM

the side panel at the back where all the wiring is
August 12, 2012 1:54:21 PM

well, I finally got it to turn on, but after about 10 seconds, it just shuts off, then turns on again. I cant get into the bios.
August 12, 2012 1:54:46 PM

now it wont turn on, same problem as before
August 12, 2012 2:28:51 PM

when I turn on the computer, the fans, and the lights turn on for half a second, then the whole computer turns off. After that I cant even get the fans to spin if I press the power button unless I turn the power supply off, then wait till the led on the mother board turns off. Then when I turn the power supply on, I can turn the lights and the fans on for half a second. All the lights and fans turn on exert for the power and hhd leds. Help!
August 12, 2012 3:19:14 PM

it could be the board....
August 12, 2012 11:14:34 PM

everything was working when I did an external build
August 12, 2012 11:43:08 PM

did you install the motherboard properly? because if you didnt you could short the board

Best solution

August 12, 2012 11:57:54 PM

Have you tried unplugging/removing everything except the mobo, 1 memory stick and processor?
August 13, 2012 3:16:25 AM

Best answer selected by itchytoo.
August 13, 2012 3:17:05 AM

plekter said:
Have you tried unplugging/removing everything except the mobo, 1 memory stick and processor?

I did that, and it worked. Then I installed everything else one by one. Everything is working now, thanks!