![Why is my HP laptop showing "System Fan (90B)" error even after cleaning the fan with compressed air? - Super User Why is my HP laptop showing "System Fan (90B)" error even after cleaning the fan with compressed air? - Super User](https://i.stack.imgur.com/BfnNw.png)
Why is my HP laptop showing "System Fan (90B)" error even after cleaning the fan with compressed air? - Super User
![System Fan (90B) The system has detected that a cooling fan is not operating correctly, HP, Compaq - YouTube System Fan (90B) The system has detected that a cooling fan is not operating correctly, HP, Compaq - YouTube](https://i.ytimg.com/vi/rIdPdBLnJ1k/maxresdefault.jpg)
System Fan (90B) The system has detected that a cooling fan is not operating correctly, HP, Compaq - YouTube
![Fix HP Laptop System Fan 90b Error Message on Startup Digital Art by HP Technical Support - Fine Art America Fix HP Laptop System Fan 90b Error Message on Startup Digital Art by HP Technical Support - Fine Art America](https://render.fineartamerica.com/images/rendered/small/print/images/artworkimages/square/1/fix-hp-laptop-system-fan-90b-error-message-on-startup-hp-technical-support.jpg)
Fix HP Laptop System Fan 90b Error Message on Startup Digital Art by HP Technical Support - Fine Art America
![Why is my HP laptop showing "System Fan (90B)" error even after cleaning the fan with compressed air? - Super User Why is my HP laptop showing "System Fan (90B)" error even after cleaning the fan with compressed air? - Super User](https://i.stack.imgur.com/1kkP2.jpg)