Intel Motherboards : Fatal1ty Z170 Gaming-ITX/ac issues Booting

Motherboard: Fatality Z170 Gaming ITX/AC

RAM: Corsair Vengeance 3200Mhz ( 2x 8Gig )

GPU: MSI 1080 GTX Sea Hawk

PSU: Corsair AX760

Drives: Samsung 950 Pro 512 Gig

Hi guys,  

Ok so the issue I'm having is strange. I will make a video as soon as I get home and post the link to it on youtube just so everyone can see exactly what I am doing. I really hope you can help. I'm completely baffled.

Ok so the issue... The issue I'm having is that after installing all the components the PC starts up perfectly, no issues there but upon further inspection in BIOS I see that my 3200Mhz RAM is running at a stock standard 2166Mhz instead of the 3200 it shows on the box. So fair enough, I just click on the (Profile 1) that shows 3200 and click apply, save and reboot and works perfectly fine. Then I switch off the PC after a gaming session and the next time I boot the PC doesn't pick up my Graphics card (I'm assuming it doesn't because the screen stays off (dead). The PC is still booting to windows but I cant see it because the screen is dead.

I have to push the "Clear CMOS" button on the motherboard to clear BIOS settings to get the PC to boot and show display again. It does this when setting the clock speed of the RAM or boosting the CPU from stock 4.0 to 4.6 from the OC menu's drop down easy OC menu.