PC can't boot ( doesn't work )

[zYNC]

Hello.

 

I bought a new PC more or less.

Bought following:

(MSI) X99 Raider

Intel i-7 5820k

HyperX Fury DDR4 2666 mHz ram 4gb x4 ( 16gb total )

Corsair h100i

Now i used my old GPU: (MSI) Nvidia GTX 970

and my Samsung SSD Evo 250gb.

 

My problem is following:

After a huge struggle i finally got it to boot and work, after installing drivers etc it had issues with booting, sometimes it just couldn't, and sometimes it could. Yesterday, i started it up without problem, then i shut it down, after i came back i couldn't get it to boot, and prety much since that, it haven't been able to boot or anything at all. I REALLY need your help guys. 

Any ideas?

[MaxTaube]

Does the PC turn on and only windows doesn't start? Or is it simply dead?

[zYNC]

It turns on, all light etc in keyboard mouse, headset etc comes on, and then it goes off again. And monitors doesn't come on either.

So prety much dead.