Year old PC no longer boots into BIOS, recieved WHEA_UNCORRECTABLE_ERROR blue screen

[kemwjustin0]

Hi, my PC Ive had for about a year will no longer boot into the BIOS. I am trying to find the root of the problem.
Before it went kaput, I would get WHEA_UNCORRECTABLE_ERROR bluescreens since October, and the percentage on the bluescreen would never go past 0%, so I would have to force turn off the PC, and right before the PC stopped booting into the BIOS, I received one of those Blue Screens as well.
So far I have tried the following:
Booting with only one stick of RAM
Replacing the CMOS Battery
Using my integrated GPU

Also, when turning on the PC, 3 things can occur not sure if these are worth nothing though. None of these are consistent. All happen without the BIOS booting up, of course
1: The PC turns on, and to turn it off I have to hold down the power button
2: The PC turns on, and to turn it off I just have to tap the power button
3: The PC will turn on for 10 seconds, turn off, then turn back on without restarting

Specs:
Intel Core i5-6600K CPU
ASROCK Z170A-X1/3.1 ATX LGA1151 Motherboard
G.Skill Ripjaws V Series 8GB (2 x 4GB) DDR4-2400 RAM
PNY 120 GB SSD
Western Digital 7200 RPM 1TB HDD (2X)
Samsung 7200 RPM 500 GB HDD
EVGA 600B 600W 80+ Bronze ATX PSU
GeForce 720 GPU

Is there any way to find out what the root of the problem is?

 

[Mark RM]

try another disk drive and install windows 10 without activation (essentially free version) and see if things improve as a test, that will help narrow it down.