Try adjusting the power plan of your computer, (Start menu> search “Power plan” > “choose a power plan”> set to power saver. Then restart computer.[br]
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Try running PC with side open (if it goes away it may be a heat issue with your case). With it running determine if all the fans are working or if it a particular fan being louder then others.
Otherwise updating BIOS may help the issue. if you have questions in how to trouble shoot a specific fan or updating BIOS let me know.
Thanks[br]
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