Not sure if mobo is dead, help? (No display)

[Olliehill]

Hello, I have had my pc for about 9months, and up until about 2weeks ago, it won't display a picture. I have striped it down and rebuilt it making sure everything is in the correct places but I still get no display. Before it stopped displaying a picture my two nephews kept turning it on and off by the power button. Not sure if that broke anything. But my motherboard led's work not sure if it can still be dead, so I have no idea what to do. Also when the pc is on, and no display, the fans speed up for about 10 seconds and then slow down, and repeats this until I turn the pc off.
I have reset CMOS, reseated cpu, tried different ram. No luck.
Thanks for any help

Specs:
Amd 8350 processor
EVGA GeForce GTX 970
Msi 970 gaming mobo
2x 8gb crucial ram
Corsair 750w power supply
120gb ssd
1tb hdd

 

[sabertooth23]

Hi,

Tried turning it on with only:
- Motherboard w/ CPU
- 1 stick of RAM
- your graphics card

If you did, and still nothing:
- reset CMOS
And/or
- reseat cpu
- try different monitor / gpu ?

I wish you the best of luck m8