https://vid.me/mq2x

It started crashing months ago when I was playing CoD AW and even MW2 and CoD4. But today it began crashing my pc on startup. It began crashing on the desktop with no programs running. This looped and crashed about 4 times every time I logged in.
At first I thought I solved it. I made a stupid mistake; for many months now (at least 6) one of my fans (the front one which I didn't remember was there as it's concealed) has been unplugged and I thought it has just been overheating and crashing.
I unplugged it by accident when installing a second hard drive. This fixed the problem and I was able to play CoD AW again for about a week then this happened.
What has happened? Have I fried a connection because of a fan not operating? I have a temperature screen on the front of my case and it usually sits around 31 degrees and in cod it goes to about 39-40 although before it would go higher than that and then crash on a regular basis.
These are my specs:
http://speccy.piriform.com/results/dndCbR5hBn5TALCmqA3Lrre
If my PC dies my life will be over. I will have to read books and play piano and I'm not ready to be Amish yet

It started crashing months ago when I was playing CoD AW and even MW2 and CoD4. But today it began crashing my pc on startup. It began crashing on the desktop with no programs running. This looped and crashed about 4 times every time I logged in.
At first I thought I solved it. I made a stupid mistake; for many months now (at least 6) one of my fans (the front one which I didn't remember was there as it's concealed) has been unplugged and I thought it has just been overheating and crashing.

What has happened? Have I fried a connection because of a fan not operating? I have a temperature screen on the front of my case and it usually sits around 31 degrees and in cod it goes to about 39-40 although before it would go higher than that and then crash on a regular basis.
These are my specs:
http://speccy.piriform.com/results/dndCbR5hBn5TALCmqA3Lrre
If my PC dies my life will be over. I will have to read books and play piano and I'm not ready to be Amish yet