Okie doke, I ran MemTest86 with spectacularly poor results. I have added a photo of how my screen looked when the test froze to my Google Drive folder. The test froze so hard, I couldn't even restart the computer by pressing the reset button on the computer tower itself. I had to do a hard shutdown.
The long and short of it is the test detected nearly 4,000 errors. Are these RAM errors or CPU errors? I assume RAM, but because the error lines mention CPU, it makes me wonder if its talking about the CPU Cache memory. Of course, I hope it's RAM since that's a much easier component to swap out.
I await your advice . . .