Question strange audio distortion gone when stress testing cpu

[bugaloo32]

hey guys, i have this strange audio glitching/distortion when my cpu is on LOW load. (example:

View: https://www.youtube.com/watch?v=5CLN5CFPfcE
)

when im stress testing with a program like OCCT or Prime95, the distortion is gone, any idea why?

 

[bugaloo32]

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