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System Fan (90B) The system has detected that a cooling fan is not operating correctly, HP, Compaq - YouTube
![HP System Fan 90B Error Fix😎 |The system has detected that a cooling fan not working properly - YouTube HP System Fan 90B Error Fix😎 |The system has detected that a cooling fan not working properly - YouTube](https://i.ytimg.com/vi/vx2Fi90Z-3M/maxresdefault.jpg)
HP System Fan 90B Error Fix😎 |The system has detected that a cooling fan not working properly - YouTube
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FIXED - The system has detected that a cooling fan is not operating corr... | Cooling fan, System, Fan
![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)