![Advisory: HP ProBook 645 G1 and HP ZBook Mobile Workstations - Intermittent System Fan (90B) Error During POST, Computer Shuts Down | HP® Customer Support Advisory: HP ProBook 645 G1 and HP ZBook Mobile Workstations - Intermittent System Fan (90B) Error During POST, Computer Shuts Down | HP® Customer Support](https://support.hp.com/doc-images/308/c05318861.jpg)
Advisory: HP ProBook 645 G1 and HP ZBook Mobile Workstations - Intermittent System Fan (90B) Error During POST, Computer Shuts Down | HP® Customer Support
![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
![HP EliteBook, ProBook and mt40 Mobile Thin Client PCs - Intermittent Cooling Fan Error During POST | HP® Customer Support HP EliteBook, ProBook and mt40 Mobile Thin Client PCs - Intermittent Cooling Fan Error During POST | HP® Customer Support](https://support.hp.com/doc-images/927/c04040265.jpg)
HP EliteBook, ProBook and mt40 Mobile Thin Client PCs - Intermittent Cooling Fan Error During POST | HP® Customer Support
![Hello,anyone else had this type of error message of his HP omen (or any other) laptop? besides louder fan noise my laptop started freezing without blue screen or strange sound.Completely freezes and Hello,anyone else had this type of error message of his HP omen (or any other) laptop? besides louder fan noise my laptop started freezing without blue screen or strange sound.Completely freezes and](https://preview.redd.it/80kf911ul6l61.jpg?auto=webp&s=58875c88c237ca2b4272afbd7115b2e3da1a34b2)