Chosen Solution
I have an hp ProDesk running windows 7. The fans have been running fast and sound like a jet engine…..i have pulled the side panel off and blew the inside out with compressed air and then restarted….same issue….
Try adjusting the power plan of your computer, (Start menu> search “Power plan” > “choose a power plan”> set to power saver. Then restart computer.
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
