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Please help, new built PC will no longer power up

Last response: in Components
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December 27, 2012 12:30:12 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 : built longer power

December 27, 2012 12:58:23 PM

What power supply do you have?
December 27, 2012 1:19:18 PM

Antec True Power 750watt
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December 27, 2012 1:20:44 PM

honestly it sounds like a failing or faulty power supply
December 27, 2012 1:35:49 PM

What can I do to test it ?

Also is it possible for it to be fault/failing after workig great for 2 weeks ?
December 28, 2012 9:09:18 PM

Make sure all your components are 'plugged in' properly.
December 28, 2012 9:20:13 PM

Yeah everything was in fine. I tested a known working PSU and it still didnt power up.
December 28, 2012 9:43:00 PM

can you enter the BIOS?
December 28, 2012 9:48:08 PM

No, nothing powered up all. The fans didn't even spin or anything
December 28, 2012 10:05:49 PM

hate to say this but it could be your motherboard is done for, you may need to replace it if you can
December 28, 2012 10:10:37 PM

I've arranged to send back the motherboard and receive a replacement within a week.

What could have cause the motherboard to suddenly die after 2 weeks ?
Was it anything I did wrong ?

Also the motherboard isn't completely dead as the standby LED light is on
December 30, 2012 4:00:34 AM

could just be faulty, or too much voltage running through it, or even a power surge fried it possibly
December 31, 2012 2:08:54 PM

I've had my motherboard replacement.
It powers on and POST fine, but I get no display. I've tried a different monitor.

The monitor detects the PC, but there is no display
!