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Catherineferko
New member
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Message 1 of 2
102
Flag Post

CPU fan

HP Recommended
Pavilion 570 -p047c
Microsoft Windows 10 (64-bit)

On boot up got message of CPU fan error 90b  fan was cycling on and off.  I updated the Bios same problem.  Replaced the fan and same problem.  The message stated to press the esc key to continue into windows and windows works and everything else works fine but I can still hear the CPU fan cycling on and off.  

Thank you

1 REPLY 1
Grzwacz
Level 12
Level 12
7,144 5,659 678 1,456
Message 2 of 2
Flag Post
HP Recommended

Hi,

 

Look, the only thing I can deduce is you have a CPU fan sensor problem on the motherboard.

 

Have you checked CPU temps with regards to fan cycling when the PC is running?

 

Regards

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