I currently have a problem with my PC. it freezes within 3 minutes of gaming. Ive tested it on rocket league and fallout 4. This started 3 days ago and I can't seem to figure out why. I have found that my cpu hits 100% when i begin playing a game within the first 3 mins in spikes rather than continuous. Before this started my screen would go black and monitor light would flash so I did a clean install of graphics driver. Now this has started.
I use a stock cooler for my CPU for the past 3 years
i5 4670k
gtx 970
cxm 600
msi z87 g43
16 ram
Any help would be appreciated
pic below is example when I game of my CPU
