My computer will not boot

[NeroSS]

Here is the run down of my build before I get into what is going on...

ASRock 970 Extreme4 mobo
FX-8320 Black Edition with 120mm water cooled closed loop setup
4x sticks of 8GB 1866mhz G-Skill Ripjaw RAM
2x Sapphire R9 280X OC version GPUs running in CrossFire - no onboard graphics on the mobo
800W PSU 80+ gold
Windows 10 home 64 bit
fast boot enabled
1x SSD @ 128GB for Windows 10 and simple programs
1x 850 evo @ 500gb solely for games
1x 2TB HD for storage

Here is what happened:

I have used this computer for 3 years and it hasn't given me too many problems besides bottle necking on a few games because the CPU wasn't overclocked.
About 2 years ago when running Windows 7, I decided to manually overclock my setup to run at 3.7GHZ and that worked just fine for the next 2 years.
I upgraded to Windows 10 when there was that free upgrade about a year ago I guess.
Lately, I've noticed the system to be sluggish and for instance, Chrome not wanting to load when clicked for over 30 seconds...like everything had been frozen.
So, I decided to look into over clocking via BIOS+UEFI again but Windows 10 does not give me the option to boot into UEFI anymore.
After updating my mobo driver from 2.3 to the latest 2.8 build, everything worked fine so I proceeded to boot into recovery mode which is supposed to let you boot into bios even if you have fast boot enabled.

My computer decided to just not want to boot after that. Fans, lights keyboard and mouse light up but I am not getting any display.

Here is what I have tried so far..

1. Clear CMOS while the computer is turned off and unplugged from the PSU. There is a clear CMOS button next to the SPDIF audio output on the back of my rig. This didn't work.
2. Unplug the SSD that runs my OS to force it to boot into BIOS / UEFI
3. Remove all RAM besides 1 stick.
4. Change CMOS jumper from 1-2 to 2-3 - wait about 5 minutes for CMOS to clear then back to 1-2

None of this has changed and the reason it won't boot correctly is from trying to start into recovery mode under the advanced startup to try to get into BIOS.

If I am missing something, please feel free to ask.

 

[NeroSS]

Update -

I currently had 2 dvi and 1 hdmi all plugged into 1 gpu because that is how i had it set up in crossfire mode

I still had the OS SSD unplugged, but changed one of the DVI plugs into the other GPU and i successfully got into my UEFI.
From there I did the OC that I wanted to do originally which was manually disabling the thermal throttle, bumping up the core clock speed from the stock 3.5ghz to a decent 4.2ghz. Having water cooled this system and actually having ran it at 4.5ghz stable in the past.
I figured this would be just fine.

Don't have time to start up windows atm but I will update later when I can.

 

[NeroSS]

Update 2

Somehow something went wrong with a driver update but it would let me boot into safe mode.
Tried to update some things in safe mode with network enabled. No luck

Then, for whatever reason, Windows fixed itself and is back to working.... but the overclock didn't apply (I think)

Here is what I have now.
If you right click on the Windows button and click on system
You will see the processor running at 4.00GHz
Everything else looks to be normal
but when looking at CPU-Z, the clock speed constantly fluctuates from 1.3ghz to 3.9ghz sometimes 4ghz
pretty sure i disabled throttling and cool n quiet