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Please help, new build PC will no longer power up

Last response: in Motherboards
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December 27, 2012 12:33:37 PM

So my pc has been running great for the past 2 weeks and all of a sudden it just shut off a while ago. So I turned it back on and it was fine for a couple of minutes and it just went off again with no warning.

Now I can't turn it on. The green led light is still on the motherboard though.

Ive tried different cables, different mains. Pretty sure nothing is shorting the motherboard. 24pin and 8pin power cables are plugged in ok.

Please help me, what's wrong with my PC ?

More about : build longer power

December 27, 2012 1:18:32 PM

No, nothing happens. Its completely dead but a green led standby light on the motherboard
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a c 150 Ĉ ASUS
a c 558 V Motherboard
December 27, 2012 1:22:07 PM

Then test the power supply by shorting the green and black wires (as in the video) if the fan does not spin, then it's a power supply issue. At least.
December 27, 2012 1:25:00 PM

Is it the power supply if it supplies enough power to ligjt the green standby led light on the motherboard ?
a c 150 Ĉ ASUS
a c 558 V Motherboard
December 27, 2012 1:28:08 PM

Yes, it might not provide 12V. Why don't you test it?
December 27, 2012 1:29:44 PM

Also, is there any danger to damage anything by doing the test
December 27, 2012 1:32:50 PM

Also, the psu has been working fine unill now. Is it possible for it suddenly stop working ?
a c 150 Ĉ ASUS
a c 558 V Motherboard
December 27, 2012 1:34:57 PM

There is no danger, haven't you watched the video? If you are afraid to test it, borrow a PSU and see if the board would start.
December 27, 2012 1:38:29 PM

If theres no danger, then I'll try it, I'll try it in a couple of hours. What if the fans power up fine ?

Thanks for taking the time to help by the way. Really appreiciate it :) 
a c 150 Ĉ ASUS
a c 558 V Motherboard
December 27, 2012 1:50:47 PM

Then it might be a board issue. But I suspect it's the PSU. On the other hand a faulty motherboard can damage the power supply and viceversa.
December 27, 2012 7:15:53 PM

The PSU and the fans ran succesfully in test .
Now what can I do ?
a c 150 Ĉ ASUS
a c 558 V Motherboard
December 27, 2012 7:25:07 PM

Try taking the board outside the case and start it with only CPU and CPU fan installed. If still the CPU fan doesn't spin, then it's a motherboard issue.
December 27, 2012 7:57:24 PM

Can it be a motherboard since it been working great for 2 weeks with no problems, plus the power led light is glowing ?
December 28, 2012 8:47:27 AM

How do I power up the board if its not in the case ?
a c 150 Ĉ ASUS
a c 558 V Motherboard
December 28, 2012 8:51:11 AM

By shortly connecting together with a screwdriver the 2 pins where the wires from the power switch are connected (it's what happens when pressing the power button - shorting the 2 pins).
December 28, 2012 8:59:56 AM

Ok thanks, Ill get back to you in about an hour.
Thanks again for your time
December 28, 2012 10:55:35 AM

Ok, tried that and it still wouldn't boot.
The standby green led light is still lighten however
December 28, 2012 11:01:54 AM

So I guess the motherbpards dead ?
But theres a small chance it could still be the PSU right ?
a c 150 Ĉ ASUS
a c 558 V Motherboard
December 28, 2012 11:08:02 AM

Yes, it could be either the board or the PSU.
December 28, 2012 11:29:51 AM

What do you suggest I do ?
a c 150 Ĉ ASUS
a c 558 V Motherboard
December 28, 2012 11:39:38 AM

Since it's under warranty, try contacting the reseller.
December 28, 2012 2:24:05 PM

Ok, will do.
Is there anything I could do to test it further.
Can I use my old psu with the motherboard to see if it boots
a c 150 Ĉ ASUS
a c 558 V Motherboard
December 28, 2012 2:30:42 PM

Definitely you can try it.
December 28, 2012 2:40:20 PM

Just checked, that its only a 20pin and a 4pin cables, so I can't do that.
December 28, 2012 7:05:44 PM

Tried the PSU and the motherboard still wouldn't start. I guess i'll have to return the motherboard
!