Computer stays on standby

[Hypermega]

Hey.

So my computer just stays on standby everytime I turn it on. The fans keep working and the GPU get hot and everything, but nothing happens on the screen.

I have a mouse that goes white when the computer goes on standby mode, and that is what happening. It should be red, but instead it's white. I had google remote desktop to open on the computer startup, I tried to connect to it with my phone but it says the computer is offline too.

What should I try? *I HAD SOME PROBLEMS WITH THE PSU BEFORE, so could this be the problem? The computer doesn't restart or anything, every fan works. Can the PSU be the cause?

Thanks

 

[reedo_43]

What are your specs. Def could be PSU.

 

[Hypermega]

What are your specs. Def could be PSU.

What happened is that my computer was always restarting and there people said it was PSU, then I acidentally broke the socket pins of my old motherboard and put this one, but now there's not even a image on screen.

My current specs:
CPU: AMD Phenom II X4 955 3.2 GHz
GPU: Gigabyte GeForce GTX 960 WindForce 2GB
Motherboard: Gigabyte GA-MA790XT-UD4P
RAM: 3x 2GB DDR3
PSU: Corsair TX650W

Thanks

 

[Hypermega]

So I've bought a new PSU and it stays exactly the same... It was the only thing left to use a 2nd one, and it stays the same... What should I do?

 

[Hypermega]

Anyone please? :\