![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
![I had an HP laptop for 2 years and the battery is on its last breath. Furthermore, its telling me that my cooling fan is not operating correctly. What should I do? I had an HP laptop for 2 years and the battery is on its last breath. Furthermore, its telling me that my cooling fan is not operating correctly. What should I do?](https://i.redd.it/au7ao2gg00i81.jpg)
I had an HP laptop for 2 years and the battery is on its last breath. Furthermore, its telling me that my cooling fan is not operating correctly. What should I do?
![LAPTOP Very HIT] ♨The system has detected that a cooling fan is not Operating Correctly ✓100% - YouTube LAPTOP Very HIT] ♨The system has detected that a cooling fan is not Operating Correctly ✓100% - YouTube](https://i.ytimg.com/vi/hL7c7a-RSlU/mqdefault.jpg)
LAPTOP Very HIT] ♨The system has detected that a cooling fan is not Operating Correctly ✓100% - YouTube
![Solved] System Fan (90B) Error || The system has detected that a cooling fan is not . - How to repair laptop Solved] System Fan (90B) Error || The system has detected that a cooling fan is not . - How to repair laptop](https://i.ytimg.com/vi/RNlETcbimqs/hqdefault.jpg)
Solved] System Fan (90B) Error || The system has detected that a cooling fan is not . - How to repair laptop
![HP 8470p laptop error: "The system has detected that a cooling fan is not operating correctly"? – IT System Administrator Tuts HP 8470p laptop error: "The system has detected that a cooling fan is not operating correctly"? – IT System Administrator Tuts](https://i0.wp.com/i.imgur.com/iatAWJe.jpg?resize=350%2C200&ssl=1)
HP 8470p laptop error: "The system has detected that a cooling fan is not operating correctly"? – IT System Administrator Tuts
![Solved] System Fan (90B) Error || The system has detected that a cooling fan is not . - How to repair laptop Solved] System Fan (90B) Error || The system has detected that a cooling fan is not . - How to repair laptop](https://i.ytimg.com/vi/kkqsVKvEwD4/hqdefault.jpg)
Solved] System Fan (90B) Error || The system has detected that a cooling fan is not . - How to repair laptop
![HP 8470p laptop error: "The system has detected that a cooling fan is not operating correctly"? – IT System Administrator Tuts HP 8470p laptop error: "The system has detected that a cooling fan is not operating correctly"? – IT System Administrator Tuts](https://i.imgur.com/3WsjJ3T.jpg)