Help! PC crashing black screen while gaming

Already applied MX brand Thermad Compound.
still overheating or something. not sure whats going on.
this is when pc is not playing a game.
this is 3mins into gaming.
7mins into gaming
fan is spinning slowly.

Already applied MX brand Thermad Compound.
still overheating or something. not sure whats going on.
this is when pc is not playing a game.
this is 3mins into gaming.
7mins into gaming
fan is spinning slowly.
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