Had BSOD for sometime before, always after gaming for just couple of minutes. It turned out that of the my RAM sticks was damaged. Nothing visual seen by eye. I suggest running 'memtest' for a night to see if there's a problem in there. (Alternative option, but also good to check even if memtest doesn't detect any faults)Try playing around with one RAM stick at a time and see what happens (incase you have more than one). Before buying randomly new stuff and putting money on trying things out, try figuring where the fault lies. And I also suggest downloading 'CPUID Hardware Monitor' for temperatures your computer is running at, as fault might lie there as well.