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‎10-11-2026 06:18 AM

HP Recommended

My HP laptop cooling fan doesnt work properly anymore. Thats why laptop is being overheated whenever i open any apps, software etc. (wifi connection). For this problem, what type of problems could arise? And how to solve this problem by ownself or anyway? Please give me details solution for this issue

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‎10-11-2026 09:30 AM

HP Recommended

Hi @stranger369, thanks for posting. The 90B message means the system detected the cooling fan isn't working correctly, which causes the overheating.

 

1. Shut down and clean the vents with compressed air (hold the fan so it doesn't spin).

2. Update the BIOS from https://support.hp.com/drivers

3. Run Esc > F2 > Component Tests > Cooling > Fan Test.

4. If it fails, the fan must be replaced: find the spare part with your serial at https://partsurfer.hp.com, or check your warranty at https://support.hp.com/check-warranty

 

Avoid heavy use until it's fixed.

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