No power to Keyboard, Mouse, No signal to monitor

[Goldenarc]

Hello all! I am new to these forums, and I joined because of a problem I've had.

I finished building my first, new rig a week ago, and it was working fine until a few days ago, when I tried booting it up there was no signal to the monitor, or keyboard & mouse.
I tried doing a few things like checking if the pins were bent.

The mobo i got was an MSI 770-G45, and since it has something which allows you to see how much power is being consumed by the CPU with LEDs, I think the motherboard is working.
I reseated the GPU(GTX 560), and checked if the power pins for the CPU & GPU were in.



Can anyone help? I'm really stressed out about this as it took me forever to raise the funds to build my rig.

Here are specs:

MSI 770-G45
AMD Phenom II X4 965 BE
Galaxy Nvidia GTX 560
Coolermaster extreme power plus 700w
8GB of ram
Seagate Barracuda 500 GB

 

[Gate9er]

Hi, Is the small green light on your mobo on?

 

[Goldenarc]

If you mean the Blue LED's, Then yes. Never seen a small green light, even when it was working. either I overlooked it or it wasn't there, what would it mean if it wasn't there?

 

[Gate9er]

Well there is a small light on the motherboard that when it is on, it indicates that your mobo is on (i.e is not burned). at least..