Everything Was Fine, But Now No Video?

[ShredAgain]

Okay, I have a custom gaming build that I started a few weeks ago, and I just completed it last night. I had everything hooked up and working fine. I was even watching YouTube videos in 4k, just like I intended. But then...

I decided to update the audio driver. I went onto Realtek's site, downloaded the most recent driver and started it. It uninstalled the original, like it should, with no problems. It asked to restart my computer, and I agreed. But then...

During the restart, I thought maybe I could go ahead and bump the cpu multiplier, since I'm already restarting the system. And that's when it happened. When I restarted the system after doing so, I had no more video.

I've tried everything I can think of, and there is no onboard video, so I don't know if it is the motherboard, or brand spanking new video card I bought last night, or what... I'm at a loss. What can I do?

System Specs:
CPU: AMD FX 8310
MOBO: Gigabyte GA-990FX-GAMING
Cooler: LEPA AquaChanger 240mm rad
RAM: Corsair Veangence Pro 2x8GB 2400Mhz
Video Card: EVGA nVidia GeForce GTX 1060 6GB SSC
HDD: Seagate Barracuda 7200rpm 2TB
Disc Drive: Some random dvd drive I ripped from an old Acer prebuilt gaming computer
Power Supply: Corsair CX600M
Case: Enermax Ostrog GT

 

[Calvin7]

Clear the CMOS.

2400MHz memory speed is not a supported speed for the AMD FX CPU without an extreme overclock.

 

[ShredAgain]

Already cleared the CMOS three times. When I installed the memory, it underclocked itself, however the mobo allowed an extreme memory profile overclock to 2166Mhz. It hasn't been an issue before. Like I said, it was running okay beforehand.