Pc starts for 1sec and shuts down. What is it??

krausbaws

Prominent
Oct 21, 2017
2
0
510
Hey guys! Fiest post :S and from my phone, please excuse my bad writing skills!!

Pc wont boot up. Turns on for 1 second and shuts immerdiatly off. Sometimes it trys to start right after it got shut down, but it dont work.

Ive tried a new psu, same thing. Ive plugged everything off, left only cpu, psu and same thing. I took the motherboard out of the case, put the mb on a piece of wood, just to be sure its not the pc case. But same problem.

I noticed before it shuts down, the red cpu led is on, but not sure if this is normal.

Any advice what i should replace?

Pc specs:
Cpu: i7 4390x
Gpu: titan x, 980ti
Motherboard: asus p9x79 Pro
Psu: leadex platinum 1200W
And be quite purepower 730W