Let me give you guys the jist of the situation.
About 3 years ago, I built my first custom pc, here's the build
Anyways, about 3-4 months ago, my computer randomly crashed, but it was weird, it literally just powered itself off when I was gaming. And restarted itself, no error message just restarted. I was really confused but left it alone. A week later same thing happens, and then it just kept happening a lot more consitently. Ok so I thought hey maybe its the temperature and its overheating. I download a fan speed checker and a temperature checker for all the parts. Fans looked fine, but I noticed the cpu temperature was wayyyy above normal around 80 degrees celcius, and I believe for the cpu I have, it should be around 50~. So I opened up the computer and cleared out dust did everything I could that I found online. 30 minutes later, same exact thing happens, temperature is really high. So I searched around and found that a cause could be voltage and I check voltages and they were actually double the normal or expected amount. So the suggested fix was check something in the bios and make sure it is capped? I dont remember exactly what it said this being a few months ago. But When I load up the comp the keyboard doesnt turn on fast enough to access bios, and when I try to use the restart on windows 8 home screen to access bios the entire computer just freezes which seems to be a separate issue on its own.. Ever since then I cant use my computer, Ill turn it on and a few minutes later itll just shut down. So since then I just put the computer away havent used it for maybe a month or 2. and I just got a job and want to fix it up, Any ideas? Maybe something needs to be replaced? Parts are in the link above, PLEASE HELP thanks