Problem with a new build

[druga ilie]

Hello, I just built a new pc from amazon and it worked very good for the first couple of weeks, but today, while I was playing a game it just crashed and when I tried to start it again it went on for half a second, turned itself off and after another second it did the same thing again and again and eventually I had to turn it off through the PSU because it kept doing like that.
I was thinking that it could be the PSU, the Motherboard or the graphics card but as it is the first pc I built, I can`t know for sure.
The parts are:
Motherboard: P9X79 PRO
CPU: Intel core i7 3820
GPU: Sapphire vapor-x HD 7970 ghz edition
PSU: Corsair 750w
Memory: corsair vengeance 4x4gb

 

[iceclock]

have u ran a scandisk. + disk defrag. is it a fresh install of windows?

 

[druga ilie]

It is a fresh install of windows but the problem is that the computer doesn't boot, the fans spin for a split second and then the pc turns off again

 

[druga ilie]

*update

I opened the case and I noticed the folowing:

1) The PSU fan does not spin (although I am not quite sure it should)
2) All the case fans and the CPU fans spin, with the exception of the exhaust fan
3) There is a red light coming from a LED on the motherboard: CPU_LED
4) The case lights turn on, but they turn off shortly again like the rest

Hope this might help
Thank you in advance for any advice you can give me.

 

[iceclock]

that doesnt sound good.

tried resetting bios battery?

 

[druga ilie]

I did and it didn`t make any difference. I just need to know which part might be broken so I can send it back and get a replacement because all the parts are in warranty.

 

[iceclock]

i cant know. im not physically there.

id rma ur stuff

 

[Outlander_04]

Check the 8 pin EPS power lead

The mb is telling you there is an error with the processor . Either its damaged [ were you overclocking ? , was the heat sink firmly in place? ] or its not getting enough power

 

[druga ilie]

The 8-pin is connected, so you are saying that the CPU is broken?
No, I was not overclocking and I also have the H100 so I don`t think that overheating could have been a problem

 

[iceclock]

does anything turn on?

 

[druga ilie]

I solved the problem, it was a thing with the 8-pin cable, it didn`t connect properly to the MB.
Thanks for the advice!

 

[iceclock]

no problem anytime.